MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed. 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 1 YARA 5 File information Comments

SHA256 hash:	9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed
SHA3-384 hash:	061fe8cb60597d5e4501baabb2d71ec0562d88f8d7f243b9145fdc737594727f908e780c5d750fe5cae64ec9fdfab626
SHA1 hash:	19b2b01778f50ce375ccfa4c33602b5c5665ccaf
MD5 hash:	f538d845b52f9d902ee451636d79df4d
humanhash:	montana-cup-kilo-undress
File name:	f538d845b52f9d902ee451636d79df4d.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	428'544 bytes
First seen:	2024-12-11 05:55:19 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	65fde8098f3aba7bab4d6464cb5259fe (3 x Stealc)
ssdeep	6144:qe7kGTJjzllLURC56vpVvdxsgUhQyljBT26mLzEF2bAfT80OYw:ttTRjEDvzsgsBBwfE0Ao0Ov
Threatray	86 similar samples on MalwareBazaar
TLSH	T15694DF1275E1842EEEF74B312975D6B0193BBC625B70809E3694329F1E732E18E21F97
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 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)
Magika	pebin
File icon (PE):
dhash icon	c6c3c18f86a68dd8 (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://92.255.57.89/45c616e921a794b8.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
http://92.255.57.89/45c616e921a794b8.php	https://threatfox.abuse.ch/ioc/1354319/

Intelligence

File Origin

# of uploads :

# of downloads :

465

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

f538d845b52f9d902ee451636d79df4d.exe

Verdict:

Malicious activity

Analysis date:

2024-12-11 05:58:10 UTC

Tags:

loader stealer stealc

Link:

https://app.any.run/tasks/f2855efb-db48-4e15-acf4-ee0f5e50c9d1

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.1568.14591.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67592a48f4dbdc5b36a41146

Tags:

extens virus zpack

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Creating a window

Connecting to a non-recommended domain

Creating a file in the %temp% directory

Creating a process from a recently created file

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:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint microsoft_visual_cc packed packed packer_detected

Link:

https://www.filescan.io/uploads/675929734730808d62bd3f68/reports/520da2bb-9b43-46db-bacc-1882b41c315d/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed

Result

Verdict:

UNKNOWN

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/77ffe5cc-5277-4db8-be69-3600f36034eb

Result

Threat name:

Stealc

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1572886

Signature

AI detected suspicious 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 malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Searches for specific processes (likely to inject)

Suricata IDS alerts for network traffic

Yara detected Powershell download and execute

Yara detected Stealc

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed/

Threat name:

Win32.Trojan.Stealc

Status:

Malicious

First seen:

2024-12-11 05:56:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=tioglhpt6kqe3cmc5jtm5a4xonwjr3ndawoo5pcgoaz2ynpbo3wq._file

Verdict:

malicious

Label(s):

stealc

shellcode_loader_002

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:default discovery stealer

Link:

https://tria.ge/reports/241211-gm1rbszlg1/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Checks installed software on the system

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Downloads MZ/PE file

Stealc

Stealc family

Malware Config

C2 Extraction:

http://92.255.57.89

Verdict:

Malicious

Tags:

Stealer Stealc

YARA:

n/a

Link:

https://app.threat.zone/submission/7a5ed75e-f028-4d8a-a1e5-7faa5b6751f3

Unpacked files

SH256 hash:

a9ce483c0085bb43b7dba75650f78269c9ce98df1f2acbc83ab34ace3d4d4566

MD5 hash:

ff4f218104a3757aa80ab5ba6bb6ece9

SHA1 hash:

72ab67a5e055c04db6974a979664d185b9586d4a

Link:

https://www.unpac.me/results/8096e2f2-3d10-4d77-a1c8-6a087e1ba72f/

SH256 hash:

9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed

MD5 hash:

f538d845b52f9d902ee451636d79df4d

SHA1 hash:

19b2b01778f50ce375ccfa4c33602b5c5665ccaf

Link:

https://www.unpac.me/results/8096e2f2-3d10-4d77-a1c8-6a087e1ba72f/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/9a1c659df3f2/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/9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed

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:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	RansomPyShield_Antiransomware Create hunting rule
Author:	XiAnzheng
Description:	Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

Stealc

exe 9a1c659df3f2a04d8982ea66ce8397736c98eda3059ceebc467033ac35e176ed

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3224762/

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
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::WriteProcessMemory
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::DeleteVolumeMountPointA KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoA KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleOutputAttribute KERNEL32.dll::GetConsoleAliasW KERNEL32.dll::GetConsoleAliasExesLengthA
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::GetFileAttributesA
WIN_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::EnumDependentServicesW

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