MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a. 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

MarsStealer

Vendor detections: 14

Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash:	c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a
SHA3-384 hash:	1da648b9666853c6538c0a391f3d5768d3a9ca5fedea3de7d0cd2a61d24ddc6c337b7a3f7235e2db0c22eee9ec3ee63a
SHA1 hash:	2e65895061d916850b104e4819253b493639813c
MD5 hash:	d62f1da7d666dca070d68ea56a4564c2
humanhash:	speaker-nine-zulu-west
File name:	SecuriteInfo.com.Win32.DropperX-gen.9364.279
Download:	download sample
Signature	MarsStealer Create hunting rule
File size:	302'592 bytes
First seen:	2023-10-03 21:32:24 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	775c7d434cffd499e537a34db4132a29 (3 x Stealc, 2 x MarsStealer, 2 x GCleaner)
ssdeep	3072:lCa3bpjSvYHSaUN2v/9IlAVi7YSydxpjZlAY7rGBK5MHDFY:l7LpevkSaUN2X9IlFYSqZllr8KuHD
Threatray	67 similar samples on MalwareBazaar
TLSH	T1BE549E13B391AC61D4729A315D39C1F83B2EFC618E69579B33583F3B59701E29A62B03
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):
dhash icon	1090c040f0485252 (1 x MarsStealer)
Reporter	SecuriteInfoCom
Tags:	exe MarsStealer

Intelligence

File Origin

# of uploads :

# of downloads :

294

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Win32.DropperX-gen.9364.279.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Sending a custom TCP request

Launching a process

Launching the default Windows debugger (dwwin.exe)

Query of malicious DNS domain

Sending an HTTP GET request to an infection source

Gathering data

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware masquerade

Link:

https://www.filescan.io/uploads/651c88909b16696e9f8e7381/reports/82ac618d-ade7-41d0-9500-0db2c8991215/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a

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:

Oski Stealer

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/87f92e60-e16c-4119-bb88-1129477ce640

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1319056

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found evasive API chain (may stop execution after checking locale)

Found malware configuration

Found many strings related to Crypto-Wallets (likely being stolen)

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Self deletion via cmd or bat file

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Crypto Currency Wallets

Tries to steal Mail credentials (via file / registry access)

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a/

Threat name:

Win32.Trojan.SmokeLoader

Status:

Malicious

First seen:

2023-10-03 21:33:08 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 23 (86.96%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zchtlgv2tzcfspkrio5lpm7z6ojxlbo657563o52qqrnvs7fscfa._file

Verdict:

malicious

MarsStealer

253f77fb5a41cc96f4cd38f7dc12c9c258a942c88c167b83757b36b62c08600b

MarsStealer

472937fd638157d20a88c109ec4abe4e1dae0a6e5727821fad8515c3aff05656

MarsStealer

48aa1d4be25d9800400fa2ab7209e5a5593799524b5794cb8d028b02c62ae6ed

MarsStealer

547aa3afffb1c692c296484c1d1225abc67a95baa4f5e46da81c5939b6d137e6

MarsStealer

6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0

MarsStealer

beca325649a048fb9d8517b206b82f94a0663138725660ee957b75e8d5ebe494

MarsStealer

c3845df0b004780912e12c0cb235b685c47006e67787100326c5f787d4772baf

MarsStealer

f36c198674bf407f576632eec261c78ceacde3532efaba78567e4c8a2850c499

MarsStealer

f6559e9de5695802ff471ea1769587e6f93aa9a3c1e29451b4b304886ca8489a

MarsStealer

+ 57 additional samples on MalwareBazaar

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/231003-1d62jahe57/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks computer location settings

Deletes itself

Loads dropped DLL

Reads user/profile data of web browsers

Downloads MZ/PE file

Stealc

Malware Config

C2 Extraction:

http://aidandylan.top

Unpacked files

SH256 hash:

fca68d95a6ac7335900e37e651c90069b92023b7b6e157d9a159dc2796fc2915

MD5 hash:

61703199e34859634509e8be9fc00641

SHA1 hash:

c292cfc70ca34c83431905a36767d715c9403405

Detections:

stealc

Link:

https://www.unpac.me/results/177d6261-773e-4a0e-95bb-a9c42d007429/

Parent samples :
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SH256 hash:

c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a

MD5 hash:

d62f1da7d666dca070d68ea56a4564c2

SHA1 hash:

2e65895061d916850b104e4819253b493639813c

Link:

https://www.unpac.me/results/177d6261-773e-4a0e-95bb-a9c42d007429/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c88f359aba9e/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/c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a

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:	detect_Mars_Stealer Create hunting rule
Author:	@malgamy12
Description:	detect_Mars_Stealer

Rule name:	infostealer_win_stealc_standalone Create hunting rule
Description:	Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:	https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	Windows_Trojan_Smokeloader_3687686f Create hunting rule
Author:	Elastic Security

Rule name:	win_stealc_w0 Create hunting rule
Author:	crep1x
Description:	Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:	https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

File information

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

No further information available

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