MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971. 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: 13

Intelligence 13 IOCs YARA 8 File information Comments

SHA256 hash:	f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971
SHA3-384 hash:	c9670eac54d51d835e122e2ed7f62f800b1cab5ffe65a8fc6406d4259d26d2a8c0ce315a311036cd3efcaaba1e47caba
SHA1 hash:	dc4554eae2b8491cc2a7d2ae2dbc09fdca513446
MD5 hash:	34ea458650ddb832351e5c150c9c4cb1
humanhash:	three-fix-blossom-romeo
File name:	file
Download:	download sample
Signature	Stealc Create hunting rule
File size:	274'944 bytes
First seen:	2023-09-06 22:20:43 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	d17013689e887b16bffa7c0e14d6a4e5 (3 x RedLineStealer, 2 x Stealc, 2 x Smoke Loader)
ssdeep	6144:LVhBs3GruqaB17zDIXdfRGnAtuimOwUL:Zc3NqGpzOTGJiz
Threatray	64 similar samples on MalwareBazaar
TLSH	T1AC44CE2276F1C033E2A356745A71C7B5AF3BF8B2573195CB6B951A3E0E706D08A7430A
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	402884c499625200 (1 x Stealc)
Reporter	andretavare5
Tags:	exe Stealc

andretavare5

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

Intelligence

File Origin

# of uploads :

# of downloads :

291

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2023-09-06 22:22:47 UTC

Tags:

stealc stealer

Link:

https://app.any.run/tasks/46077a94-a0ee-4dc8-943f-b7d298364cb1

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/446764/

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.4488.27126.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Creating a file

Reading critical registry keys

Sending a custom TCP request

Changing a file

Creating a file in the %AppData% subdirectories

Creating a window

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Stealing user critical data

Gathering data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

control greyware lolbin packed shell32

Link:

https://www.filescan.io/uploads/64f8fb4fe29c52e38dc831c4/reports/0ab1af3c-34ce-44ca-83e2-472cb706e819/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971

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/a8defc2e-f090-4c34-af7f-99dfd8aaba91

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1304780

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

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/f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971/

Threat name:

Win32.Trojan.Privateloader

Status:

Malicious

First seen:

2023-09-06 22:21:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6ubhzpgwhlxovii4jato7ocysqrrgbdbhjk5j6kwmqru5hngvfyq._file

Verdict:

malicious

Stealc

508636b6c60753fad23295328180bf3b2c003437fdabc24a84f6d283fd3d96fa

Stealc

5168d5d6b59a26403a898e2d652325da96692f58353fa0105ca90cbb536138a0

Stealc

6846828546f5883942cb40ad28958a9cde3b54b1838851e8b52d33fcbdeae3c7

Stealc

715821d03d18bb8dab9435aa68a6507532630ed3252dcbf76316a2e8ea228be8

Stealc

8320b1984cd007f2e819d2572382e0d231feae3b91ec2d30163665aa1295cdc5

Stealc

97926b3548aa3eeffe39a696a2744e22c550d76ac967af8969d50f6526007391

Stealc

b61dbd2a617235d6b4178d90d126dc57e40e74751e2f39fc8a5d8acf3e53f1c1

Stealc

ed0d87028ca259fd20def7b2131b184049ef43c5507937d8a5a9faf40ca9f761

Stealc

+ 54 additional samples on MalwareBazaar

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:8268873659707098636355379426 discovery spyware stealer

Link:

https://tria.ge/reports/230906-19mmrscd2y/

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

Link:

https://www.unpac.me/results/c54e0a94-b71f-4550-8ecd-1f70cd322e80/

Parent samples :
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SH256 hash:

f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971

MD5 hash:

34ea458650ddb832351e5c150c9c4cb1

SHA1 hash:

dc4554eae2b8491cc2a7d2ae2dbc09fdca513446

Link:

https://www.unpac.me/results/c54e0a94-b71f-4550-8ecd-1f70cd322e80/

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/f5027cbcd63aeeeaa11c4826efb85894231304613a55d4f95664234e9da6a971

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

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.

Dropped by

PrivateLoader

Delivery method

Distributed via drive-by

Cape

https://www.capesandbox.com/analysis/446764/

URLhaus

https://urlhaus.abuse.ch/url/2710091/

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