MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a. 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

Stealc

Vendor detections: 12

Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash:	b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a
SHA3-384 hash:	c54fb3a232b7a570b0522b1d25e7114a8da5a2e9ad1e4a9cb1fe1101c5dd809f76e72a33e6838d545df7fefbd9547f7e
SHA1 hash:	870a0f78bd50c9b1d0600656f2ab12ab0de857e0
MD5 hash:	da3fdb0cbf00586c65860bfcf4b040bf
humanhash:	two-michigan-violet-kentucky
File name:	da3fdb0cbf00586c65860bfcf4b040bf.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	213'504 bytes
First seen:	2023-10-04 07:00:14 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	ce62d6c99a2ee08049f067650fad119c (3 x Tofsee, 3 x Smoke Loader, 3 x Stealc)
ssdeep	3072:V9Z3QiahhTnUtYBSvW0CFvJHi4d6kOEGgW/Btc990VNmXJ2MS5i1t8AEh:GiaTzMYB7JFxC4d6khTWTcu211j
Threatray	74 similar samples on MalwareBazaar
TLSH	T12D24D02239E0C072F2B755789534C790AF7BB8736BA4854F37181A6E6F213D19A62373
TrID	38.6% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 29.0% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	1018083020a08000 (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://aidandylan.top/3886d2276f6914c4.php

Intelligence

File Origin

# of uploads :

# of downloads :

318

Origin country :

Vendor Threat Intelligence

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Result

Verdict:

Clean

Maliciousness:

Gathering data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a

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/35f4ff8b-5f16-475b-aac5-be830b8e6ff3

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1319247

Signature

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 domain / URL

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/b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a/

Threat name:

Win32.Backdoor.Tofsee

Status:

Malicious

First seen:

2023-10-04 07:01:04 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=xdbslfom67y6lt3kgxj56emnrgy4n5sigmjlfnjfhejudri37ina._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/231004-hs7x9shg2s/

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

Program crash

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/dd9d4733-09dc-44ee-9e27-8ee7da865bb0/

Parent samples :
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SH256 hash:

b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a

MD5 hash:

da3fdb0cbf00586c65860bfcf4b040bf

SHA1 hash:

870a0f78bd50c9b1d0600656f2ab12ab0de857e0

Link:

https://www.unpac.me/results/dd9d4733-09dc-44ee-9e27-8ee7da865bb0/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b8c32595ccf7/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/b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a

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:	DebuggerHiding__Active 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.

Web download

Stealc

exe b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2716132/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2716168/

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