MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4. 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: 14

Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash:	a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4
SHA3-384 hash:	54375c22e76e8eb381ce1467f03a4e29eca1105c25a779ed4915cef970efeeb4c86f8b0c728e1e7488aa933e775c9c44
SHA1 hash:	9491aad3811e00ddf091722397e2506d24fd6946
MD5 hash:	999091666dbf12a924835e3720ebec86
humanhash:	emma-bravo-three-july
File name:	a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4.exe
Download:	download sample
Signature	CobaltStrike Create hunting rule
File size:	817'152 bytes
First seen:	2024-07-24 20:05:26 UTC
Last seen:	2024-07-24 20:23:41 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	c835453ae34bcf8ba05aeb6ccfa43d54 (1 x CobaltStrike)
ssdeep	6144:YtqXvTUgaSp+vn8A7NFEooGkvgvGeLaAibwzo9lvKkkKz1eWDwCErbkxYMCrYOPp:8qfTbmn8yNFESk4vZ412tPoTPeb
TLSH	T1D3053B16EA152DD3D925CEF05EA291132D15F4E70B137A5F3ACC0009FE77BA5AA28DC8
TrID	44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):
dhash icon	f8dc888898a88490 (1 x CobaltStrike)
Reporter	Anonymous
Tags:	Cobalt Strike exe

Anonymous

this malware sample is very nasty!

Intelligence

File Origin

# of uploads :

# of downloads :

342

Origin country :

Vendor Threat Intelligence

Malware family:

cobaltstrike

ID:

File name:

a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4.exe

Verdict:

Suspicious activity

Analysis date:

2024-07-24 20:23:49 UTC

Tags:

cobaltstrike trojan

Link:

https://app.any.run/tasks/c2a3230a-355c-4084-93bc-eab8680f6bb6

Note:

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

Detection(s):

SecuriteInfo.com.Win64.InjectorX-gen.22307.31340.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66a15eaecb3d02fa0e495985

Tags:

Network Stealth Malware

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a file

Launching a process

Connection attempt

Sending a custom TCP request

Сreating synchronization primitives

Creating a process with a hidden window

Searching for the window

Creating a window

Launching a service

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug anti-vm expand lolbin microsoft_visual_cc packed rust

Link:

https://www.filescan.io/uploads/66a15efc8f66298c01f36f29/reports/464adb43-32d7-41e8-b68a-aa9b3530ab27/overview

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/121f2d15-97fc-4f65-aeab-9f355450534c

Result

Threat name:

CobaltStrike, Metasploit

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1482696

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to inject threads in other processes

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected CobaltStrike

Yara detected Metasploit Payload

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4/

Threat name:

Win64.Trojan.CobaltStrike

Status:

Malicious

First seen:

2024-04-05 19:52:31 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

19 of 38 (50.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=vflzwxj3u2grnecy2q5zxhidhcl5fzi2z2zg65vkfisqzizxwtsa._file

Verdict:

malicious

Label(s):

cobaltstrike

Result

Malware family:

cobaltstrike

Score:

10/10

Tags:

family:cobaltstrike backdoor trojan

Link:

https://tria.ge/reports/240724-yvebqsxeph/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Cobaltstrike

Malware Config

C2 Extraction:

http://150.158.75.38:19111/bangumi/play/ep816608

Malware Family:

n/a

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/6d212afb-97ed-486c-8659-40b479dd2f56

Unpacked files

SH256 hash:

a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4

MD5 hash:

999091666dbf12a924835e3720ebec86

SHA1 hash:

9491aad3811e00ddf091722397e2506d24fd6946

Link:

https://www.unpac.me/results/56455869-5bdb-4fd3-a455-c00617e034ed/

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/a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4

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

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

File information

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

Malspam

CobaltStrike

exe a9579b5d3ba68d169058d43b9b9d033897d2e51aceb26f76aa2a250ca337b4e4

(this sample)

Link

https://bbs.kafan.cn/forum-31-1.html

Delivery method

Distributed via e-mail attachment

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
COM_BASE_API	Can Download & Execute components	ole32.dll::CoCreateInstance ole32.dll::CoInitializeSecurity
WIN32_PROCESS_API	Can Create Process and Threads	kernel32.dll::CreateRemoteThreadEx kernel32.dll::CreateProcessW kernel32.dll::OpenProcess advapi32.dll::OpenProcessToken kernel32.dll::VirtualAllocEx kernel32.dll::WriteProcessMemory
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryA kernel32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	kernel32.dll::WriteConsoleW kernel32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	kernel32.dll::CopyFileExW kernel32.dll::CreateFileW kernel32.dll::MoveFileExW kernel32.dll::GetWindowsDirectoryW kernel32.dll::GetSystemDirectoryW kernel32.dll::GetFileAttributesW
WIN_BCRYPT_API	Can Encrypt Files	bcrypt.dll::BCryptGenRandom

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