MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

CobaltStrike

Vendor detections: 17

Intelligence 17 IOCs YARA 38 File information Comments

SHA256 hash:	b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a
SHA3-384 hash:	398fe21875638a6b873417be42fbec8dbb5441effc28ac7c55323f4d5ea6406910c15cd61e46574e24a8dae3f40a15e3
SHA1 hash:	1120bafa9b6fbd354d9608429abadb182bee5a28
MD5 hash:	47bb8d7f3cf9b28d425fd1185a4f9704
humanhash:	cat-iowa-undress-butter
File name:	47bb8d7f3cf9b28d425fd1185a4f9704.exe
Download:	download sample
Signature	CobaltStrike Create hunting rule
File size:	67'584 bytes
First seen:	2024-06-17 10:45:29 UTC
Last seen:	2024-06-17 11:26:25 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	e6bb6861135f1c74712f28c5deba308d (1 x CobaltStrike)
ssdeep	1536:MywDbEMczeacyqGRfkRXFaYG7DOAT7r0MbAYYtJB:5sRkYG7P5btYx
Threatray	1 similar samples on MalwareBazaar
TLSH	T1B2635D0B52D348BCD11BC63445D7ABB1EA71B8110774FB1E1A34EF722E20D609F5EA69
TrID	41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 26.1% (.EXE) Win64 Executable (generic) (10523/12/4) 12.5% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.1% (.ICL) Windows Icons Library (generic) (2059/9) 5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter	abuse_ch
Tags:	CobaltStrike exe

abuse_ch

CobaltStrike C2:
101.133.148.66:801

Intelligence

File Origin

# of uploads :

# of downloads :

388

Origin country :

Vendor Threat Intelligence

Malware family:

cobaltstrike

ID:

File name:

b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a.exe

Verdict:

Malicious activity

Analysis date:

2024-06-17 10:47:26 UTC

Tags:

cobaltstrike backdoor

Link:

https://app.any.run/tasks/11e8d93f-5b0e-4e31-a97e-95e8a7ebe6c6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.BackDoor.CobaltStrike.2.4598.19839.UNOFFICIAL

Verdict:

Malicious

Score:

95.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=667015a60f8138dd4eab2c9ewin7simulatehigh_evasion

Tags:

Stealth Generickd

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Sending an HTTP GET request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug cobaltstrike meterpreter nim

Link:

https://www.filescan.io/uploads/667013f00bf5978c0b1005e9/reports/9f774056-9640-4b5d-8369-c192654ea94f/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

Cobalt Strike

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4b9bfe53-9b25-4e07-a103-0102f22930bc

Result

Threat name:

CobaltStrike, Metasploit

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1458256

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Contains functionality to detect sleep reduction / modifications

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Uses known network protocols on non-standard ports

Yara detected CobaltStrike

Yara detected Metasploit Payload

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Score:

96%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a/

Threat name:

Win64.Backdoor.CobaltStrikeBeacon

Status:

Malicious

First seen:

2024-06-13 12:47:00 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xadutdpidaqys5p6ra3kjosrdsmu5c6toqt2dg4t32r5rnsdksfa._file

Verdict:

malicious

Label(s):

cobaltstrike

CobaltStrike

Result

Malware family:

cobaltstrike

Score:

10/10

Tags:

family:cobaltstrike backdoor trojan

Link:

https://tria.ge/reports/240617-mtys7s1elp/

Behaviour

Cobaltstrike

Malware Config

C2 Extraction:

http://101.133.148.66:801/zx29

Unpacked files

SH256 hash:

b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a

MD5 hash:

47bb8d7f3cf9b28d425fd1185a4f9704

SHA1 hash:

1120bafa9b6fbd354d9608429abadb182bee5a28

Link:

https://www.unpac.me/results/1e8c1ebf-b16b-4788-b822-fac1f5072b07/

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b807498de818/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

CobaltStrike

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b807498de818218975fe8836a4ba511c994e8bd37427a19b93dea3d8b643548a

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	Beacon_K5om Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Meterpreter Beacon - file K5om.dll
Reference:	https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html

Rule name:	Beacon_K5om_RID2B14 Create hunting rule
Author:	Florian Roth
Description:	Detects Meterpreter Beacon - file K5om.dll
Reference:	https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html

Rule name:	Cobaltbaltstrike_Beacon_x64 Create hunting rule
Author:	Avast Threat Intel Team
Description:	Detects CobaltStrike payloads
Reference:	https://github.com/avast/ioc

Rule name:	Cobaltstrike1 Create hunting rule
Author:	Ahmet Payaslioglu \| Binalyze DFIR LAB
Description:	Cobalt Strike Detection

Rule name:	Cobaltstrike2 Create hunting rule
Author:	Ahmet Payaslioglu \| Binalyze DFIR LAB
Description:	Cobalt Strike Detection

Rule name:	CobaltStrikeBeacon Create hunting rule
Author:	ditekshen, enzo & Elastic
Description:	Cobalt Strike Beacon Payload

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

Rule name:	CobaltStrike_MZ_Launcher Create hunting rule
Author:	yara@s3c.za.net
Description:	Detects CobaltStrike MZ header ReflectiveLoader launcher

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

Rule name:	CobaltStrike_Sleeve_BeaconLoader_x64_o_v4_3_v4_4_v4_5_and_v4_6 Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's sleeve/BeaconLoader.x64.o (Base) 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

Rule name:	CobaltStrike_Unmodifed_Beacon Create hunting rule
Author:	yara@s3c.za.net
Description:	Detects unmodified CobaltStrike beacon DLL

Rule name:	CobaltStrike__Sleeve_BeaconLoader_x64_o_v4_3_v4_4_v4_5_and_v4_6 Create hunting rule
Author:	gssincla@google.com

Rule name:	crime_win32_csbeacon_1 Create hunting rule
Author:	@VK_Intel
Description:	Detects Cobalt Strike loader
Reference:	https://twitter.com/VK_Intel/status/1239632822358474753

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	HKTL_CobaltStrike_Beacon_Strings 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

Rule name:	HKTL_CobaltStrike_SleepMask_Jul22 Create hunting rule
Author:	CodeX
Description:	Detects static bytes in Cobalt Strike 4.5 sleep mask function that are not obfuscated
Reference:	https://codex-7.gitbook.io/codexs-terminal-window/blue-team/detecting-cobalt-strike/sleep-mask-kit-iocs

Rule name:	HKTL_Meterpreter_inMemory Create hunting rule
Author:	netbiosX, Florian Roth
Description:	Detects Meterpreter in-memory
Reference:	https://www.reddit.com/r/purpleteamsec/comments/hjux11/meterpreter_memory_indicators_detection_tooling/

Rule name:	HKTL_Win_CobaltStrike 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/

Rule name:	INDICATOR_SUSPICIOUS_ReflectiveLoader Create hunting rule
Author:	ditekSHen
Description:	Detects Reflective DLL injection artifacts

Rule name:	Leviathan_CobaltStrike_Sample_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Cobalt Strike sample from Leviathan report
Reference:	https://goo.gl/MZ7dRg

Rule name:	Leviathan_CobaltStrike_Sample_1_RID3324 Create hunting rule
Author:	Florian Roth
Description:	Detects Cobalt Strike sample from Leviathan report
Reference:	https://goo.gl/MZ7dRg

Rule name:	malware_CobaltStrike_v3v4 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect CobaltStrike Beacon in memory
Reference:	https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html

Rule name:	Malware_QA_vqgk Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	VT Research QA uploaded malware - file vqgk.dll
Reference:	VT Research QA

Rule name:	MALWARE_Win_CobaltStrike Create hunting rule
Author:	ditekSHen
Description:	CobaltStrike payload

Rule name:	MALW_cobaltrike Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Rule to detect CobaltStrike beacon
Reference:	https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	PowerShell_Susp_Parameter_Combo_RID336F Create hunting rule
Author:	Florian Roth
Description:	Detects PowerShell invocation with suspicious parameters
Reference:	https://goo.gl/uAic1X

Rule name:	ReflectiveLoader 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

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Trojan_Raw_Generic_4 Create hunting rule
Author:	FireEye
Reference:	https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html

Rule name:	troj_win_cobaltstrike_memoryinject Create hunting rule
Author:	Jeff White (karttoon@gmail.com) @noottrak
Description:	Detects Cobalt Strike payload typically loaded into memory via PowerShell.

Rule name:	WiltedTulip_ReflectiveLoader 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

Rule name:	Windows_Trojan_CobaltStrike_1787eef5 Create hunting rule
Author:	Elastic Security
Description:	CS shellcode variants

Rule name:	Windows_Trojan_CobaltStrike_3dc22d14 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_CobaltStrike_663fc95d Create hunting rule
Author:	Elastic Security
Description:	Identifies CobaltStrike via unidentified function code

Rule name:	Windows_Trojan_CobaltStrike_ee756db7 Create hunting rule
Description:	Attempts to detect Cobalt Strike based on strings found in BEACON

Rule name:	Windows_Trojan_CobaltStrike_f0b627fc Create hunting rule
Description:	Rule for beacon reflective loader

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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

No further information available

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

Reviews

ID	Capabilities	Evidence
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoA

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