MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc6a8971936c3e98781357035bd418d3a29051d3924b437cddeff6224ebc2f30. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments

SHA256 hash: bc6a8971936c3e98781357035bd418d3a29051d3924b437cddeff6224ebc2f30
SHA3-384 hash: 9830435d3e4c50666d465ec938125dd217408134426b3a4a3bf0f6a3c954a2058f2ddc51d28b155cd2838cb2f3a14177
SHA1 hash: 0c7eaf42ee2891d54d23748239b79cf95b524a67
MD5 hash: 2ef3f7eaf7c729f7bb0367f9ce306d70
humanhash: lemon-lithium-green-asparagus
File name:2ef3f7eaf7c729f7bb0367f9ce306d70.exe
Download: download sample
Signature Stealc
File size:248'320 bytes
First seen:2023-02-25 10:10:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 338c60e12bfd108b93a60e97ac446d6a (1 x Stealc, 1 x Smoke Loader, 1 x Amadey)
ssdeep 3072:gp+8sAwsLFBDDEBJvSsjfWOAX6vEdkrfKGcCHdLZdoK37lhio:6+5KLrEBnjYX6vJeCHpZdZ7O
Threatray 1'168 similar samples on MalwareBazaar
TLSH T10B34BF2175B0D0B1F5A785305934DAA86AFBFCE36625898F33583BAF2D307D15A62312
TrID 59.6% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
15.0% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.9% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 383260c4c2cacc01 (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://systemupdate-microsoft.top/31f2a38ac74a9d54.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2ef3f7eaf7c729f7bb0367f9ce306d70.exe
Verdict:
Malicious activity
Analysis date:
2023-02-25 10:11:46 UTC
Tags:
stealer loader

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

Behaviour
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
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.
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
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 many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
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.Zenpak
Status:
Malicious
First seen:
2023-02-25 10:02:37 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
4cecdcc15d61ffc9fa155a6ab91bb4ab5bdeb3c09cf33ee870f246fe336608a5
MD5 hash:
b4036950a70db8ec046b21287be0fbc1
SHA1 hash:
f1e51dd9ff26e314a50e215407884b38e674f266
Detections:
stealc win_stealc_w0
SH256 hash:
bc6a8971936c3e98781357035bd418d3a29051d3924b437cddeff6224ebc2f30
MD5 hash:
2ef3f7eaf7c729f7bb0367f9ce306d70
SHA1 hash:
0c7eaf42ee2891d54d23748239b79cf95b524a67
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:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:Windows_Trojan_Smokeloader_3687686f
Author:Elastic Security
Rule name:win_stealc_w0
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:yara_template

File information


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

Comments