MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3. 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: 16

Intelligence 16 IOCs 1 YARA 49 File information Comments

SHA256 hash:	f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3
SHA3-384 hash:	3da9af4e94f877e65716ec9e83f6ea9af202b7fdb897ed3ba6508547d7cba25b7ee81f5c11b7790b4f68ec86a6b69ce4
SHA1 hash:	ab35547910e1ce88774fe24ab6b6abd03ecc9a4c
MD5 hash:	5a198c535521667c27d0f1765fd9c838
humanhash:	quiet-uniform-neptune-august
File name:	5A198C535521667C27D0F1765FD9C838.exe
Download:	download sample
Signature	CobaltStrike Create hunting rule
File size:	17'920 bytes
First seen:	2024-06-29 15:40:14 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	17b461a082950fc6332228572138b80c (121 x CobaltStrike, 2 x Cobalt Strike)
ssdeep	192:QDMAe4Ckj19RZZ6wpSfu1bKcq5uHj7khBDSeKNH4aENBUbOj6kxiY:QDMAoKz6WtKEj7aBDifENbAY
Threatray	576 similar samples on MalwareBazaar
TLSH	T1E882FA7FB64328E9C12BD17CC9EA6771ACF27123416B271F2FB4C6302E21969467D909
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:
8.130.111.241:80

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
8.130.111.241:80	https://threatfox.abuse.ch/ioc/1289013/

Intelligence

File Origin

# of uploads :

# of downloads :

539

Origin country :

Vendor Threat Intelligence

Detection(s):

Win.Trojan.CobaltStrike-9044898-1

Win.Trojan.CobaltStrike-7899871-1

Win.Countermeasure.LoaderWinGeneric-9804845-2

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66802b4917db6c2841b24481win10vpnfull_triage

Tags:

Infostealer Network Stealth Cobaltstrike

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Connection attempt

Sending an HTTP GET request

Verdict:

Malicious

Labled as:

Trojan.CobaltStrike

Link:

https://www.hybrid-analysis.com/sample/f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3

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/a102c288-88a3-49d3-9ce4-14fc1c8230e6

Result

Threat name:

CobaltStrike, Metasploit

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1464663

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

Detected unpacking (creates a PE file in dynamic memory)

Found API chain indicative of debugger detection

Found malware configuration

Found potential dummy code loops (likely to delay analysis)

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

Snort IDS alert for network traffic

Yara detected CobaltStrike

Yara detected Metasploit Payload

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3

Detection:

cobaltstrike

Link:

https://mwdb.cert.pl/sample/f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3/

Threat name:

Win64.Backdoor.CobaltStrike

Status:

Malicious

First seen:

2024-06-26 03:11:00 UTC

File Type:

PE+ (Exe)

AV detection:

32 of 37 (86.49%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=7eabjxcd52e2f2gri26iht2gfzio6tpfzul73keg6qwjmmnzv3rq._file

Verdict:

malicious

Label(s):

cobaltstrike

CobaltStrike

339c7ac759b7ef0ab8e2a9434f53fcd212786575b08b4b41687ab10fdcf2c502

CobaltStrike

5531524151fcf7af36ff08c7f4a1b00c2c8cd409c64ce0bc2fe022973ba16c0a

CobaltStrike

673d8268fd21825ca5f21d8b395cdcede7009b60e540cb36c46f5794626faefb

CobaltStrike

96f1143875956621e590d05da84a3b75d498ecbf6afda44208894c2f51a8464b

CobaltStrike

99986d438ec146bbb8b5faa63ce47264750a8fdf508a4d4250a8e1e3d58377fd

CobaltStrike

f2093c8228896204c3403526c88ff3ddb4d9c7369a043ebb0b1a69b44ce63cd2

CobaltStrike

+ 566 additional samples on MalwareBazaar

Result

Malware family:

cobaltstrike

Score:

10/10

Tags:

family:cobaltstrike backdoor trojan

Link:

https://tria.ge/reports/240629-s4q41atcpr/

Behaviour

Cobaltstrike

Malware Config

C2 Extraction:

http://8.130.111.241:80/XGFx

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f866c4cf-19d8-49a1-8e41-144ef9cc0d59

Unpacked files

SH256 hash:

f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3

MD5 hash:

5a198c535521667c27d0f1765fd9c838

SHA1 hash:

ab35547910e1ce88774fe24ab6b6abd03ecc9a4c

Detections:

HKTL_Imphashes_Aug22_1

hacktool_windows_cobaltstrike_artifact_exe

CobaltStrike_Resources_Artifact64_v3_14_to_v4_x

Link:

https://www.unpac.me/results/6f31a784-1f6a-41b6-b192-aa7bec6f20ca/

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f90014dc43ee/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/f90014dc43ee89a2e8d146bc83cf462e50ef4de5cd17fda886f42c9631b9aee3

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_Resources_Artifact64_v3_14_to_v4_x Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's resources/artifact64{.exe,.dll,svc.exe,svcbig.exe,big.exe,big.dll,.x64.dll,big.x64.dll} and resource/artifactuac(alt)64.exe signature for versions v3.14 through v4.x
Reference:	https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse

Rule name:	CobaltStrike_Sleep_Decoder_Indicator Create hunting rule
Author:	yara@s3c.za.net
Description:	Detects CobaltStrike sleep_mask decoder

Rule name:	CobaltStrike_Sleeve_BeaconLoader_VA_x64_o_v4_3_v4_4_v4_5_and_v4_6 Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's sleeve/BeaconLoader.VA.x64.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

Rule name:	CobaltStrike_Sleeve_Beacon_x64_v4_5_variant Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's sleeve/beacon.x64.dll Versions 4.5 (variant)
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__Resources_Artifact64_v3_14_to_v4_x Create hunting rule
Author:	gssincla@google.com

Rule name:	CobaltStrike__Sleeve_BeaconLoader_VA_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_4_2_Decrypt Create hunting rule
Author:	Elastic
Description:	Identifies deobfuscation routine used in Cobalt Strike Beacon DLL version 4.2
Reference:	https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures

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_Imphashes_Aug22_1 Create hunting rule
Author:	Florian Roth
Description:	Detects different hacktools based on their imphash
Reference:	Internal Research

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:	SUSP_XORed_Mozilla 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()

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
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_7f8da98a Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_CobaltStrike_b54b94ac Create hunting rule
Description:	Rule for beacon sleep obfuscation routine

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_cobaltstrike_pipe_strings_nov_2023 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects default strings related to cobalt strike named pipes

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_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetStartupInfoA
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileA

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