MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e90cbff460414a9bd5b8ba2c9680bca2f85d3a38b4d2b2242f8c176d102f72f. 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 3 File information Comments

SHA256 hash: 4e90cbff460414a9bd5b8ba2c9680bca2f85d3a38b4d2b2242f8c176d102f72f
SHA3-384 hash: 4335dac63d5826c728be353739402b9ade7b1d268201070f60c01ee6b439aaa2949b69850419d2626f9840338eb5e3e7
SHA1 hash: 331ce4e42c1f05984d0dfe8def855513f2209711
MD5 hash: b9c81870733125e8ce37bd69ca0dd5fa
humanhash: beryllium-pip-beryllium-apart
File name:syncUpd.exe
Download: download sample
Signature Stealc
File size:206'848 bytes
First seen:2024-01-06 18:44:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9644dc245efd171dc55da36927086aff (1 x Stealc)
ssdeep 3072:+WKxaOMqLfy1wPgNY01xznuiOsL7dNUUs/VkVbs+5XOORED9:XK/LK2PgTdIsL7/UUkVqy
TLSH T15E147C1262E27D51D537CA729F6AC6F47A1EB550AF49EF5A22289B1F08701F3C623313
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
dhash icon 000968c884848480 (1 x Stealc)
Reporter adm1n_usa32
Tags:exe Stealc

Intelligence


File Origin
# of uploads :
1
# of downloads :
329
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
455a6a7f15ba86a0fe02ae1d8beff7a3dc8e858380244a45141054b0d330135c.exe
Verdict:
Malicious activity
Analysis date:
2024-01-06 19:10:13 UTC
Tags:
evasion opendir loader smoke smokeloader stealer stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
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
Stealing user critical data
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed shell32
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.
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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 harvest and steal ftp login credentials
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:
Threat name:
Win32.Trojan.Znyonm
Status:
Malicious
First seen:
2024-01-06 18:29:20 UTC
File Type:
PE (Exe)
Extracted files:
30
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://185.172.128.79
Unpacked files
SH256 hash:
83aa2c435154d0d7a3795aeb055b61efb63623e41cfb36c2d307c528d7a800dd
MD5 hash:
0ab6d9806ae054279a2c9efbf7fb3add
SHA1 hash:
28d5e8b4d1ebdccd0ddbe5b04981424007708641
Detections:
stealc win_stealc_auto win_stealc_a0
SH256 hash:
4e90cbff460414a9bd5b8ba2c9680bca2f85d3a38b4d2b2242f8c176d102f72f
MD5 hash:
b9c81870733125e8ce37bd69ca0dd5fa
SHA1 hash:
331ce4e42c1f05984d0dfe8def855513f2209711
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

Stealc

Executable exe 4e90cbff460414a9bd5b8ba2c9680bca2f85d3a38b4d2b2242f8c176d102f72f

(this sample)

  
Delivery method
Distributed via web download

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