YARAify Scan Results

Task Information

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Task ID:	93485c38-1fba-11f1-b47f-42010aa4000b
File name:	403d444644a96575d8d603e3c82c469c
Task parameters:	ClamAV scan:	True
	Unpack:	False
	Share file:	True

ClamAV Results

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The file matched the following open source and commercial ClamAV rules.

Signature:	Win.Exploit.42ae-9840059-0 Alert Create hunting rule

Signature:	Win.Exploit.D3b71c-9863766-0 Alert Create hunting rule

YARA Results

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Static Analysis

The following YARA rules matched on the file (static analysis).

Rule name:	cobalt_strike_beacon_detected Alert Create hunting rule
Author:	0x0d4y
Description:	This rule detects cobalt strike beacons.
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	cobalt_strike_tmp01925d3f Alert Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	CobaltStrike__Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6 Alert Create hunting rule
Author:	gssincla@google.com
TLP:	TLP:WHITE
Repository:	GCTI

Rule name:	CobaltStrike_C2_Encoded_XOR_Config_Indicator Alert Create hunting rule
Author:	yara@s3c.za.net
Description:	Detects CobaltStrike C2 encoded profile configuration
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	CobaltStrike_ReflectiveLoader_RID3297 Alert Create hunting rule
Author:	Florian Roth
Description:	Detects reflective loader (Cobalt Strike)
Reference:	http://www.clearskysec.com/tulip
TLP:	TLP:WHITE

Rule name:	CobaltStrike_Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6 Alert Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's sleeve/BeaconLoader.VA.x86.o (VirtualAlloc) Versions 4.3 through at least 4.6
Reference:	https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	Cobaltstrike3 Alert Create hunting rule
Author:	Ahmet Payaslioglu | Binalyze DFIR LAB
Description:	Cobalt Strike Detection
TLP:	TLP:WHITE
Repository:	AhmetPayaslioglu

Rule name:	CobaltStrikeBeacon Alert Create hunting rule
Author:	ditekshen, enzo & Elastic
Description:	Cobalt Strike Beacon Payload
TLP:	TLP:WHITE
Repository:	CAPE

Rule name:	CP_Script_Inject_Detector Alert Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	CS_beacon Alert Create hunting rule
Author:	Etienne Maynier tek@randhome.io
TLP:	TLP:WHITE
Repository:	MalwareBazaar

Rule name:	Detect_all_IPv6_variants Alert Create hunting rule
Author:	Bierchermuesli
Description:	Generic IPv6 catcher
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	golang_bin_JCorn_CSC846 Alert Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	HKTL_CobaltStrike_Beacon_Strings Alert Create hunting rule
Author:	Elastic
Description:	Identifies strings used in Cobalt Strike Beacon DLL
Reference:	https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	HKTL_Win_CobaltStrike Alert Create hunting rule
Author:	threatintel@volexity.com
Description:	The CobaltStrike malware family.
Reference:	https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/
TLP:	TLP:WHITE

Rule name:	INDICATOR_SUSPICIOUS_ReflectiveLoader Alert Create hunting rule
Author:	ditekSHen
Description:	Detects Reflective DLL injection artifacts
TLP:	TLP:WHITE
Repository:	diˈtekSHən

Rule name:	meth_peb_parsing Alert Create hunting rule
Author:	Willi Ballenthin
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	meth_stackstrings Alert Create hunting rule
Author:	Willi Ballenthin
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	classified
Description:	classified

Rule name:	ReflectiveLoader Alert Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:	Internal Research
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	SUSP_XORed_Mozilla_Oct19 Alert Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:	https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Alert Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
Reference:	Internal Research
TLP:	TLP:WHITE

Rule name:	VECT_Ransomware Alert Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
TLP:	TLP:WHITE
Repository:	YARAify

Rule name:	WiltedTulip_ReflectiveLoader Alert Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:	http://www.clearskysec.com/tulip
TLP:	TLP:WHITE
Repository:	Neo23x0

Rule name:	win_cobalt_strike_auto Alert Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.cobalt_strike.
TLP:	TLP:WHITE
Repository:	Malpedia

Rule name:	Windows_Trojan_CobaltStrike_3dc22d14 Alert Create hunting rule
Author:	Elastic Security
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_CobaltStrike_f0b627fc Alert Create hunting rule
Description:	Rule for beacon reflective loader
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_CobaltStrike_f0b627fc Alert Create hunting rule
Author:	Elastic Security
Description:	Rule for beacon reflective loader
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_Metasploit_7bc0f998 Alert Create hunting rule
Description:	Identifies the API address lookup function leverage by metasploit shellcode
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_Metasploit_7bc0f998 Alert Create hunting rule
Author:	Elastic Security
Description:	Identifies the API address lookup function leverage by metasploit shellcode
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_Metasploit_c9773203 Alert Create hunting rule
Description:	Identifies the 64 bit API hashing function used by Metasploit. This has been re-used by many other malware families.
Reference:	https://github.com/rapid7/metasploit-framework/blob/04e8752b9b74cbaad7cb0ea6129c90e3172580a2/external/source/shellcode/windows/x64/src/block/block_api.asm
TLP:	TLP:WHITE
Repository:	elastic

Rule name:	Windows_Trojan_Metasploit_c9773203 Alert Create hunting rule
Author:	Elastic Security
Description:	Identifies the 64 bit API hashing function used by Metasploit. This has been re-used by many other malware families.
Reference:	https://github.com/rapid7/metasploit-framework/blob/04e8752b9b74cbaad7cb0ea6129c90e3172580a2/external/source/shellcode/windows/x64/src/block/block_api.asm
TLP:	TLP:WHITE
Repository:	elastic

Unpacker

The following YARA rules matched on the unpacked file.

Unpacked Files

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The following files could be unpacked from this sample.