MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f903b80879fb45aa72f83d9bc35724d6ea48ad34f9aa80a0897e1d5f971d1b3. 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 2 File information Comments

SHA256 hash: 6f903b80879fb45aa72f83d9bc35724d6ea48ad34f9aa80a0897e1d5f971d1b3
SHA3-384 hash: a3ce1c8cebcfcbc004893d95af0e1985798ee29936bac59f48b4175be0f1ac54b3e8904c44711f40e07198dd862e20c5
SHA1 hash: 541c492fa557f2fcb24124b5f37a33690eac54bd
MD5 hash: fe0baf4affbe6d983e55c9b7d42c9420
humanhash: potato-indigo-two-failed
File name:fe0baf4affbe6d983e55c9b7d42c9420.exe
Download: download sample
Signature Stealc
File size:260'608 bytes
First seen:2024-01-13 05:36:11 UTC
Last seen:2024-01-13 07:21:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1219152ca9012f009c52738038ecb485 (1 x Smoke Loader, 1 x CMSBrute, 1 x Stealc)
ssdeep 3072:5jf8lLZvrMxCoKTjXJieti1KEdjpgawOFkAWfssFehxHgIWbb8HFRwJ0:5jf8ldb7YYl3ssFgTWnfJ0
TLSH T110447D1175E2C432E2B3297A48B1C7F45A7BB8A32A3599CF2BC5167D1F256D2DB20307
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)
File icon (PE):PE icon
dhash icon d2b1e4c4ecb1c7f9 (1 x Smoke Loader, 1 x CMSBrute, 1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc

Intelligence


File Origin
# of uploads :
2
# of downloads :
351
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b549699feb7101de2a3895a291a9034053b5c8b2e3b369cf947ae467e9239ab7.exe
Verdict:
Malicious activity
Analysis date:
2024-01-12 15:23:24 UTC
Tags:
loader stealer stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Stealing user critical data
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
stealc
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 Mail credentials (via file / registry access)
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Stealc
Status:
Malicious
First seen:
2024-01-12 14:46:28 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
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://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:
6f903b80879fb45aa72f83d9bc35724d6ea48ad34f9aa80a0897e1d5f971d1b3
MD5 hash:
fe0baf4affbe6d983e55c9b7d42c9420
SHA1 hash:
541c492fa557f2fcb24124b5f37a33690eac54bd
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
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 6f903b80879fb45aa72f83d9bc35724d6ea48ad34f9aa80a0897e1d5f971d1b3

(this sample)

  
Delivery method
Distributed via web download

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