MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 574070ec94222cfc284d569930c61e6efbde27a7b89476e9850cd0d9c4f1e777. 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 14 File information Comments

SHA256 hash: 574070ec94222cfc284d569930c61e6efbde27a7b89476e9850cd0d9c4f1e777
SHA3-384 hash: f1eda78d8e46662317433f1a3a3f6fe73ddc110a1a8dec7f117de242c74d33db78a482d979e5d93ff3d9b5b13a4cc5b8
SHA1 hash: 34628ea5c7ec347c29fa04793ec038093ac9a9ae
MD5 hash: 620dfa59fc0cfbf8226c8f10b11ba61d
humanhash: victor-connecticut-black-charlie
File name:620dfa59fc0cfbf8226c8f10b11ba61d.exe
Download: download sample
Signature Stealc
File size:589'176 bytes
First seen:2023-10-30 18:45:20 UTC
Last seen:2023-10-30 20:32:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 298cb3d37775391ff8b8cc74cba1548f (15 x Stealc, 1 x MarsStealer)
ssdeep 12288:MS4vdwKTNWuuRYqrggHp/bLf7dajBIlXSY4j+6qj9:aF7M0UJf7g1Ilqjyj9
Threatray 961 similar samples on MalwareBazaar
TLSH T192C4AE51E2C14D3AC0672A3E5D1BE2AD58247D1226E8D88AAFD47FCC1F3528137F4A97
TrID 38.9% (.SCR) Windows screen saver (13097/50/3)
29.7% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
13.3% (.EXE) Win32 Executable (generic) (4505/5/1)
6.0% (.EXE) OS/2 Executable (generic) (2029/13)
5.9% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 399998ecd4d46c0e (572 x Quakbot, 137 x ArkeiStealer, 82 x GCleaner)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://bidbur.com/b5c586aec2e1004c.php

Intelligence


File Origin
# of uploads :
2
# of downloads :
344
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control keylogger lolbin overlay packed replace 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.
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
CryptOne, 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 evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 steal Crypto Currency Wallets
Yara detected CryptOne packer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1334462 Sample: wFOdfpMlvS.exe Startdate: 30/10/2023 Architecture: WINDOWS Score: 100 33 bidbur.com 2->33 37 Snort IDS alert for network traffic 2->37 39 Found malware configuration 2->39 41 Antivirus detection for URL or domain 2->41 43 6 other signatures 2->43 8 wFOdfpMlvS.exe 32 2->8         started        signatures3 process4 dnsIp5 35 bidbur.com 68.170.2.83, 49736, 80 AS17054US United States 8->35 25 C:\ProgramData\nss3.dll, PE32 8->25 dropped 27 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 8->27 dropped 29 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->29 dropped 31 9 other files (none is malicious) 8->31 dropped 45 Detected unpacking (changes PE section rights) 8->45 47 Detected unpacking (overwrites its own PE header) 8->47 49 Found many strings related to Crypto-Wallets (likely being stolen) 8->49 51 5 other signatures 8->51 13 cmd.exe 1 8->13         started        15 WerFault.exe 16 8->15         started        17 WerFault.exe 19 16 8->17         started        19 2 other processes 8->19 file6 signatures7 process8 process9 21 conhost.exe 13->21         started        23 timeout.exe 1 13->23         started       
Threat name:
Win32.Trojan.Stealc
Status:
Malicious
First seen:
2023-10-30 18:46:06 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of UnmapMainImage
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 user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
574070ec94222cfc284d569930c61e6efbde27a7b89476e9850cd0d9c4f1e777
MD5 hash:
620dfa59fc0cfbf8226c8f10b11ba61d
SHA1 hash:
34628ea5c7ec347c29fa04793ec038093ac9a9ae
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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
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
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Trojan_W32_Gh0stMiancha_1_0_0
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:yarahub_win_stealc_bytecodes_oct_2023
Author:Matthew @ Embee_Research

File information


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

Web download

Stealc

Executable exe 574070ec94222cfc284d569930c61e6efbde27a7b89476e9850cd0d9c4f1e777

(this sample)

  
Delivery method
Distributed via web download

Comments