MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789. 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: 16

Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash:	73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789
SHA3-384 hash:	fc7df2731e522f2688ff9dbdc0a0297b921e9e3c6ce393a84146ee5b16cd2c955bf7a38eb2057e0204cbc6d828db6701
SHA1 hash:	2e70fd8c3f8ed1cdeeb754c8bc005b66971208ce
MD5 hash:	98d75ac516c8422010860028f45fe6d7
humanhash:	mexico-mockingbird-football-enemy
File name:	file
Download:	download sample
Signature	Stealc Create hunting rule
File size:	2'498'560 bytes
First seen:	2024-07-13 16:27:51 UTC
Last seen:	2024-07-24 16:08:00 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep	49152:lAz1nDsYWmekVo7fwXRq02Xv835G/8cxGGSgklYcZqXpPDM8:eqYtVycBq0yklykPZwDh
TLSH	T1C2C5334FA47A3E91C3297333FB6D2D1D9C765A94342B1013604A893E5B2E11AD6CFEE1
TrID	27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 20.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 18.6% (.EXE) Win32 Executable (generic) (4504/4/1) 8.5% (.ICL) Windows Icons Library (generic) (2059/9) 8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter	Bitsight
Tags:	exe Stealc

Bitsight

url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin

# of uploads :

# of downloads :

369

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789.exe

Verdict:

Malicious activity

Analysis date:

2024-07-13 16:28:18 UTC

Tags:

stealc stealer antivm loader

Link:

https://app.any.run/tasks/144ce9d8-7e8f-446e-bfa5-7cb8f0c0928c

Note:

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

Detection(s):

PUA.Win.Packer.EnigmaProtector-9852682-0

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6692ab14da3a746b9a73dcf7win7simulatehigh_evasion

Tags:

Stealth Zpack

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Launching a process

Connection attempt to an infection source

Sending an HTTP GET request to an infection source

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

enigma lolbin microsoft_visual_cc packed packed shell32

Link:

https://www.filescan.io/uploads/6692ab1315842045dc3be026/reports/2d3e4d2c-4587-46be-8e13-8bc5cfa54c57/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789

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:

YiSpecter

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/fd8c204e-c607-4d94-b0d9-4820b30d3f52

Result

Threat name:

Mars Stealer, Stealc, Vidar

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1472687

Signature

AI detected suspicious sample

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)

Found malware configuration

Hides threads from debuggers

Machine Learning detection for sample

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

PE file has nameless sections

Sample uses string decryption to hide its real strings

Snort IDS alert for network traffic

Yara detected Mars stealer

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/73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789/

Threat name:

Win32.Trojan.Generic

Status:

Malicious

First seen:

2024-07-13 16:28:06 UTC

File Type:

PE (Exe)

AV detection:

22 of 24 (91.67%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=oovii36gkzxejgwzzcpuq73uy7cr32s4aa7yveaqzqnzwsjeq6eq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:hate discovery spyware stealer

Link:

https://tria.ge/reports/240713-tym1tszgrh/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of NtSetInformationThreadHideFromDebugger

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks computer location settings

Deletes itself

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://85.28.47.30

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/68d85cc5-1a68-4c8f-be4d-a9f710153f81

Unpacked files

SH256 hash:

73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789

MD5 hash:

98d75ac516c8422010860028f45fe6d7

SHA1 hash:

2e70fd8c3f8ed1cdeeb754c8bc005b66971208ce

Link:

https://www.unpac.me/results/1e8cc733-b483-4531-bd58-55ac03a9ca67/

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/73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789

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:	maldoc_getEIP_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 73aa846fc6566e449ad9c89f487f74c7c51dea5c003f8a9010cc1b9b49248789

(this sample)

Dropped by

Amadey

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2909129/

URLhaus

https://urlhaus.abuse.ch/url/2951356/

URLhaus

https://urlhaus.abuse.ch/url/2908698/

URLhaus

https://urlhaus.abuse.ch/url/2949689/

URLhaus

https://urlhaus.abuse.ch/url/2951260/

URLhaus

https://urlhaus.abuse.ch/url/2909131/

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
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
SHELL_API	Manipulates System Shell	shell32.dll::ShellExecuteA
WIN_BASE_API	Uses Win Base API	kernel32.dll::LoadLibraryA
WIN_BASE_IO_API	Can Create Files	version.dll::GetFileVersionInfoA

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