MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58. 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: 19

Intelligence 19 IOCs YARA 61 File information Comments

SHA256 hash:	4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58
SHA3-384 hash:	f3a3627d9bbdb9aad919be127c05b3b931fc9fa199f5c252d008d439698a2891412db0908d698b5b9a08f4fa0a0a9146
SHA1 hash:	b7f81d32d4c0a70819cf47e7037abf3eeb1e50f8
MD5 hash:	0d981cf81a874bda92f1feb1a7c383e6
humanhash:	december-happy-west-black
File name:	endgame.exe
Download:	download sample
Signature	CobaltStrike Create hunting rule
File size:	288'256 bytes
First seen:	2025-04-24 14:31:13 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	17b461a082950fc6332228572138b80c (121 x CobaltStrike, 2 x Cobalt Strike)
ssdeep	6144:jCYRuRKuq4fXeHZO6w4fPGcH6RVHinQGuKVFr:LRsKuOHon4fPG06Gn
TLSH	T16D54AE7BC106ED8FD28E01B2D3F6EC9966F0BC77313046402B8CA9746DA567A99731D2
TrID	41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 26.1% (.EXE) Win64 Executable (generic) (10522/11/4) 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)
Magika	pebin
Reporter	TheSillyFEllo
Tags:	CobaltStrike exe

Intelligence

File Origin

# of uploads :

# of downloads :

455

Origin country :

Vendor Threat Intelligence

Malware family:

cobaltstrike

ID:

File name:

endgame.exe

Verdict:

Malicious activity

Analysis date:

2025-04-24 09:32:02 UTC

Tags:

cobaltstrike

Link:

https://app.any.run/tasks/1f172669-e79f-4e6d-9872-7bd386767059

Note:

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

Detection:

CobaltStrikeBeacon

Link:

https://www.capesandbox.com/analysis/3888/

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=680a4c153d067f848398ddce

Tags:

cobaltstrike cobalt emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug cobalt cobaltstrike config-extracted entropy mingw packed windows

Link:

https://www.filescan.io/uploads/680a4b6b46fe05453ca62f2a/reports/965dfc80-8feb-45c6-afc9-a6da42bde0e1/overview

Verdict:

Malicious

Labled as:

Trojan.CobaltStrike

Link:

https://www.hybrid-analysis.com/sample/4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58

Malware family:

Cobalt Strike

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/1c4e01f8-92f0-4085-a588-e8701476a75d

Result

Threat name:

CobaltStrike

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1673205

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to detect sleep reduction / modifications

Found API chain indicative of debugger detection

Found malware configuration

Found potential dummy code loops (likely to delay analysis)

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected CobaltStrike

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58

Detection:

cobaltstrike

Link:

https://mwdb.cert.pl/sample/4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58/

Threat name:

Win64.Backdoor.Cobeacon

Status:

Malicious

First seen:

2025-04-24 14:32:14 UTC

File Type:

PE+ (Exe)

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ivc26cuowt6ve6aq5dw5irf4ddzfnkmovefj4tajidag73hivrma._file

Verdict:

malicious

Label(s):

cobaltstrike

Similar samples:

error

CobaltStrike

Result

Malware family:

cobaltstrike

Score:

10/10

Tags:

family:bruteratel family:cobaltstrike botnet:0 backdoor trojan

Link:

https://tria.ge/reports/250424-rwbhxaxny8/

Behaviour

Cobaltstrike

Cobaltstrike family

Malware Config

C2 Extraction:

http://93.190.143.101:667/IE9CompatViewList.xml

Verdict:

Malicious

Tags:

red_team_tool cobalt_strike Win.Trojan.CobaltStrike-9044898-1 c2

YARA:

hacktool_windows_cobaltstrike_beacon CobaltStrike_Resources_Artifact64_v3_14_to_v4_x win_cobaltstrike_pipe_strings_nov_2023 Windows_Trojan_CobaltStrike_7f8da98a HKTL_Imphashes_Aug22_1

Link:

https://app.threat.zone/submission/b1f59df8-213f-4d66-af5b-2be701dbecbb

Unpacked files

SH256 hash:

4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58

MD5 hash:

0d981cf81a874bda92f1feb1a7c383e6

SHA1 hash:

b7f81d32d4c0a70819cf47e7037abf3eeb1e50f8

Link:

https://www.unpac.me/results/c6ae8327-25b3-46f8-9398-601fe3db76a4/

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4545af0a8eb4/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/4545af0a8eb4fd527810e8edd444bc18f256a98ea90a9e4c0940c06fece8ac58

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_3 Create hunting rule
Author:	gssincla@google.com
Description:	Cobalt Strike's sleeve/beacon.x64.dll Version 4.3
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:	cobalt_strike_beacon_decrypted Create hunting rule
Author:	0x0d4y
Description:	This rule detects cobalt strike decrypted beacons.

Rule name:	cobalt_strike_beacon_detected Create hunting rule
Author:	0x0d4y
Description:	This rule detects cobalt strike beacons.

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:	CS_beacon Create hunting rule
Author:	Etienne Maynier tek@randhome.io

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

Rule name:	detect_powershell Create hunting rule
Author:	daniyyell
Description:	Detects suspicious PowerShell activity related to malware execution

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

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:	pe_detect_tls_callbacks Create hunting rule

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_Oct19 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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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

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.

Cape

https://www.capesandbox.com/analysis/3888/

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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