MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6. 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 6 File information Comments

SHA256 hash:	c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6
SHA3-384 hash:	db3176954e032f26a3ae8110a8aca7b75d3f916099411a4f41590818e4b19708d0f307efe2041ad264fbfd8477be7ac3
SHA1 hash:	2b0297f11ced3e0df9657f78ef930772c72a0203
MD5 hash:	4f117e64cd22f40988ee1a7dc31daaf0
humanhash:	georgia-hawaii-pip-pennsylvania
File name:	4f117e64cd22f40988ee1a7dc31daaf0.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	855'040 bytes
First seen:	2024-07-23 12:05:31 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	af0f88358390a4f58963b26bacea4505 (11 x Stealc, 2 x RedLineStealer, 1 x CoinMiner)
ssdeep	24576:UtWArtsJhlnUdW5arSUK31asdS+QSACQUwu3mQ+:UOJhlnUdWajs4+QSA1UP3mQ+
TLSH	T19005BE2239C08036C77320320A68E7BA5BBEF4710F2556DF57E85A7E1F389C15A3566B
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) (4504/4/1)
Reporter	abuse_ch
Tags:	exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

344

Origin country :

Vendor Threat Intelligence

Detection(s):

Win.Keylogger.Lazy-10031941-0

Win.Packed.Injuke-10033459-0

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=669f9cab2f6eaff4b90f4b72

Tags:

Static Redline

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Launching a process

Сreating synchronization primitives

Connecting to a non-recommended domain

Connection attempt

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

epmicrosoft_visual_cc fingerprint infostealer microsoft_visual_cc packed redline

Link:

https://www.filescan.io/uploads/669f9cb57b9add553eda6491/reports/1eb8039c-7725-450b-b8ac-ff605396dc65/overview

Verdict:

Malicious

Labled as:

Lazy.Generic

Link:

https://www.hybrid-analysis.com/sample/c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6

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.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/258d246f-ed0c-4a6a-a7e1-fe940507d306

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1479300

Signature

AI detected suspicious sample

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to inject code into remote processes

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

Found malware configuration

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

Injects a PE file into a foreign processes

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Searches for specific processes (likely to inject)

Tries to harvest and steal Bitcoin Wallet information

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

Tries to harvest and steal ftp login credentials

Tries to steal Crypto Currency Wallets

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

Writes to foreign memory regions

Yara detected Powershell download and execute

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6/

Threat name:

Win32.Trojan.Fragtor

Status:

Malicious

First seen:

2024-07-23 09:24:42 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zabtx7oxqo73lzymz2dxojxykd6m7cfukwdzbyqs7bg6xrjyvg3a._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:default discovery spyware stealer

Link:

https://tria.ge/reports/240723-n9qm7sydpp/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Program crash

Suspicious use of SetThreadContext

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Downloads MZ/PE file

Stealc

Malware Config

C2 Extraction:

http://85.28.47.152

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/205241f4-4e30-41bf-a80f-3dde47a42845

Unpacked files

SH256 hash:

7f0dced9d2b18018b05782ff52433c7b457569c6cc4a5ba87b9ad7535c3bdbce

MD5 hash:

f2df57bc17c86c6493521d80a23e67ed

SHA1 hash:

733f96b31945e522068999fa0223c15756aeb1ff

Detections:

stealc

Link:

https://www.unpac.me/results/81531b5c-12eb-49a5-b064-04594237b8b1/

Parent samples :

a6986d95ffbdd1e9225e8b3d1ee39e80dc14f93cfdd1f9f83c18661365861350
9be4b1cca2acb003e4ed05cbed666bf2bf571168a0f43ca4f82e23b66dbda0f5
706dbb32b4302b7e92a81f6d2695f5b9b7158b11e4c33cafec686ae0ea62206b
7d185f7d580ca1574e1e5065e1be236ae7023a4cfedde087cc917bfc9e47655a
7e6ffdde1226df58092ceeb219ce357f346adf3f97e79b2e91d1f13081899a8a
3a3fa66aba25c3846c5dd47688768b35cba3ad311f018691ea43f9ea6849506a
c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6
66684bce0a0958501514c8b839b19f04858e624fca3215eff8c5c656c48ca806
78bec82769e98d1a688ecabfb4dc822d2ae1068105e06de16420dbaa4512bc75
4b40b8b7f7cde5fa48805276b36f2b3eabd946830b56ef0616c33194707e54f1

SH256 hash:

c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6

MD5 hash:

4f117e64cd22f40988ee1a7dc31daaf0

SHA1 hash:

2b0297f11ced3e0df9657f78ef930772c72a0203

Link:

https://www.unpac.me/results/81531b5c-12eb-49a5-b064-04594237b8b1/

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/c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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

File information

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

Web download

Stealc

exe c8033bfdd783bfb5e70cce877726f850fccf88b4558790e212f84debc538a9b6

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3062426/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::VirtualAllocEx KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread KERNEL32.dll::CreateThreadpoolWork KERNEL32.dll::CreateThreadpoolTimer KERNEL32.dll::CreateThreadpoolWait
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleCtrlHandler KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW

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