MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c
SHA3-384 hash: 05289d3ae778b60a400aba8c1722b4c6ac8e3f1328c0e389f50094e4333776f78423e3367c6026a2b938c3280f987eab
SHA1 hash: 8b6a52bbf2d98852a7c4d721867404e27d3e8e6d
MD5 hash: 01695f1475ade0efe3f83b981e35f9d3
humanhash: lion-oscar-wisconsin-oxygen
File name:SecuriteInfo.com.Trojan-Ransom.StopCrypt.14278.25208
Download: download sample
Signature Stealc
Create hunting rule
File size:297'984 bytes
First seen:2023-12-01 21:20:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d3ecaa3ff256d295d638233f7023beb2 (2 x Stealc, 1 x Smoke Loader, 1 x Tofsee)
ssdeep 6144:98fb0LdL0V9azDdVPpfc9U3lUmN1JQdbzBagPp6:98o2V9azDdVa23lZNHWBaQI
TLSH T1F9546B0352E06C61E5224E328E2AC6E86A1EFF518F3D779B13586B6F09731F1C662F15
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):PE icon
dhash icon 1290c8626261d24c (1 x Stealc)
Reporter SecuriteInfoCom
Tags:exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
311
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/461822/
Detection(s):
SecuriteInfo.com.Trojan-Ransom.StopCrypt.14278.25208.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Reading critical registry keys
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)
Stealing user critical data
Sending an HTTP GET request to an infection source
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/49605995-5dc7-4e2d-86e7-6ec0cfb252e8
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1351757
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-12-01 21:21:05 UTC
File Type:
PE (Exe)
Extracted files:
41
AV detection:
19 of 23 (82.61%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=onfutdrv3zccudf3rqwlfybx3lnzs5wvszmebf6crdhrwgfotyoa._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Link:
https://tria.ge/reports/231201-z7a1hsgc5s/
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 data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://77.91.76.36
Unpacked files
SH256 hash:
acb86bb2c87864e5bafa05a7bfd921a012f56af8255b1799c723d48e2fce7fb9
MD5 hash:
9a5562cc357620c649b6bef810d55116
SHA1 hash:
42c14018e3d8930fc9ebadc4f3067c1d503f4798
Detections:
stealc
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/f98c10f8-273f-4f8b-95a3-11103c2a6a5d/
Parent samples :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 hash:
734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c
MD5 hash:
01695f1475ade0efe3f83b981e35f9d3
SHA1 hash:
8b6a52bbf2d98852a7c4d721867404e27d3e8e6d
Link:
https://www.unpac.me/results/f98c10f8-273f-4f8b-95a3-11103c2a6a5d/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/734b498e35de/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/734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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/
Rule name:yarahub_win_stealc_bytecodes_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:yara_template
Create hunting rule

File information

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

Web download

Stealc

Executable exe 734b498e35de442a0cbb8c2cb2e037dadb9976d596584097c288cf1b18ae9e1c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2736472/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/461822/

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