MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4. 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: 15

Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash:	ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4
SHA3-384 hash:	268f5f084c550c2559eb8ac55c0eaee8438096405c6e9b9496b1125cf224a85d245b8f452c7f5579471f2fa594636d7a
SHA1 hash:	ac2e1ae8fda911fbca2de5b2b4d6b8e7ac59bfbe
MD5 hash:	d8ed3bcdca3c0dfe607e62c2f5e26d56
humanhash:	friend-saturn-hydrogen-bacon
File name:	file
Download:	download sample
Signature	Stealc Create hunting rule
File size:	201'216 bytes
First seen:	2023-09-14 15:47:22 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	b240da42760a8c87cea3a4ff648819c5 (1 x RedLineStealer, 1 x Stealc, 1 x Smoke Loader)
ssdeep	3072:oheeLiIJ/hHlAE5ogY69SY3Lrn0xgjf3Dnmcy56ZbD5TfN499:weeLLVhFA+o3YLzzmcVd5TV4T
Threatray	285 similar samples on MalwareBazaar
TLSH	T10514CF1279E0D033C5A751349834C2E06A3BBC639BA5855B37583F7F3E322926BA6353
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	08191a3070c0c000 (1 x Stealc)
Reporter	andretavare5
Tags:	exe Stealc

andretavare5

Sample downloaded from http://williecampbell.top/calc2.exe

Intelligence

File Origin

# of uploads :

# of downloads :

300

Origin country :

Vendor Threat Intelligence

Malware family:

oski

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2023-09-14 15:48:35 UTC

Tags:

stealc oski stealer

Link:

https://app.any.run/tasks/5188ba45-6bd5-45cc-b316-aaa045467564

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/448680/

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Gathering data

Verdict:

No Threat

Threat level:

10/10

Confidence:

100%

Tags:

greyware packed

Link:

https://www.filescan.io/uploads/65032b3269c1cf3b6ab5ea8c/reports/070db899-9e2b-4052-b374-5e5ae2a4dbd6/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4

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/cdf69938-9920-4318-b54d-e446601230f5

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

phis.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1308091

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 submitted file

Overwrites Mozilla Firefox settings

Sample uses string decryption to hide its real strings

Self deletion via cmd or bat file

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

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/ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4/

Threat name:

Win32.Ransomware.StopCrypt

Status:

Malicious

First seen:

2023-09-14 15:48:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

18 of 22 (81.82%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=vu5w63ejdt32o6eyfvd3oab2y4dtwsm4lfd6u7kknqlij676awsa._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:8268873659707098636355379426 discovery spyware stealer

Link:

https://tria.ge/reports/230914-s8rlbsda4w/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

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://charlesjones.top

Unpacked files

SH256 hash:

3b16e7380171ace72014d2c96da0f5e39e3a59b04292ae835810811c9b8993be

MD5 hash:

b680e0c51e9f88c1d01c74d5753c021d

SHA1 hash:

85c53fb73c0610cec81ce9a31c233e7cac911556

Detections:

stealc

Link:

https://www.unpac.me/results/94bc3728-2a06-471c-96ac-375f20c41e56/

Parent samples :
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SH256 hash:

ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4

MD5 hash:

d8ed3bcdca3c0dfe607e62c2f5e26d56

SHA1 hash:

ac2e1ae8fda911fbca2de5b2b4d6b8e7ac59bfbe

Link:

https://www.unpac.me/results/94bc3728-2a06-471c-96ac-375f20c41e56/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ad3b6f6c891c/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/ad3b6f6c891cf7a778982d47b7003ac7073b499c5947ea7d4a6c1684fbfe05a4

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:	ThreadControl__Context 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.

Dropped by

PrivateLoader

Delivery method

Distributed via drive-by

Cape

https://www.capesandbox.com/analysis/448680/

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