MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219. 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: 14

Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash:	c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219
SHA3-384 hash:	8d034215f375c5ab7a0f5a510e902484df889e6641002b6780ca2dca2a8572a3a43e82144c4c10792a2b270a1c3ce909
SHA1 hash:	35eb4e536d3423cc909cbe63ce04970ee800b90c
MD5 hash:	61b1ffdc3e2cdbbb9d0586d46b56eb99
humanhash:	eight-carolina-oranges-tennessee
File name:	61b1ffdc3e2cdbbb9d0586d46b56eb99.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	273'408 bytes
First seen:	2023-08-26 08:31:52 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	afcff5561bc6ac3d233799d21416a52a (1 x MarsStealer, 1 x Stealc)
ssdeep	3072:61DdkBbioUZl6GBHX5rgDFsAY3flGiFg4HNZeOh7YituvzXDGvV8Xd:M2QZlHBHJMFsn9GOIg7YitYzX62
Threatray	162 similar samples on MalwareBazaar
TLSH	T17C44BF2262C1A872E52347319E6AC7E56A2BF8704F5676DB23945E3F2E702E1C771306
TrID	37.3% (.EXE) Win64 Executable (generic) (10523/12/4) 17.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 16.0% (.EXE) Win32 Executable (generic) (4505/5/1) 7.3% (.ICL) Windows Icons Library (generic) (2059/9) 7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):
dhash icon	70d0dcc0d2d1d2dd (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

270

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

61b1ffdc3e2cdbbb9d0586d46b56eb99.exe

Verdict:

Malicious activity

Analysis date:

2023-08-26 08:33:41 UTC

Tags:

stealc stealer

Link:

https://app.any.run/tasks/1a2d3da8-50ba-421c-8f13-4609a58023fb

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.Siggen21.21750.29623.10335.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

control greyware lolbin packed

Link:

https://www.filescan.io/uploads/64e9b88e1d3a8c6c121749af/reports/4897548b-e7d2-480e-bd16-5f7412edc569/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219

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/ca3e9adc-b6d0-4a1b-8a56-5590451b554a

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1297751

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 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/c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219/

Threat name:

Win32.Trojan.Privateloader

Status:

Malicious

First seen:

2023-08-25 01:01:51 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ytgdkxeohpcsuu7uh6c4mbwyes3ap7mr777tqq4txr7ztar3wimq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc spyware stealer

Link:

https://tria.ge/reports/230826-kfahcaha85/

Behaviour

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

Loads dropped DLL

Reads user/profile data of web browsers

Downloads MZ/PE file

Stealc

Unpacked files

SH256 hash:

dc7f3a22dabb560428ed5f62eb881c3643f85bdad454befadba0c051904fce0f

MD5 hash:

d9c8df9237d3d825d8cd7cf225322037

SHA1 hash:

b3fd98f0d6d93898c1f870555944e78bff54e77e

Link:

https://www.unpac.me/results/3333e05f-be16-445f-935c-8af549fb42c2/

SH256 hash:

c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219

MD5 hash:

61b1ffdc3e2cdbbb9d0586d46b56eb99

SHA1 hash:

35eb4e536d3423cc909cbe63ce04970ee800b90c

Link:

https://www.unpac.me/results/3333e05f-be16-445f-935c-8af549fb42c2/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c4cc355c8e3b/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/c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219

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:	BitcoinAddress Create hunting rule
Author:	Didier Stevens (@DidierStevens)
Description:	Contains a valid Bitcoin address

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.

Web download

Stealc

exe c4cc355c8e3bc52a53f43f85c606d824b607fd91ffff384393bc7f99823bb219

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2705935/

Delivery method

Distributed via web download

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