MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 899cb0aff59fdbd1a1edf8d7c42180d38adb3b3849668bd0c469d1afc65464e5. 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 11 File information Comments

SHA256 hash: 899cb0aff59fdbd1a1edf8d7c42180d38adb3b3849668bd0c469d1afc65464e5
SHA3-384 hash: 2466e85bc3b00983860fa4c35a143a9e2ddffbfc4d7e9e3cb1ca96c40437f9c248920b16e3e065b98f512bfdd42f7cdc
SHA1 hash: ef2bcdcd124f30206a95e17c4a4c7e462b76505c
MD5 hash: 7444af0a8014d31ac37c73ffec6518e0
humanhash: jig-stream-chicken-saturn
File name:7444af0a8014d31ac37c73ffec6518e0.exe
Download: download sample
Signature Stealc
File size:288'768 bytes
First seen:2023-11-08 06:45:21 UTC
Last seen:2023-11-08 08:22:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b2b0b7ed9f4668d7f13e657846ddb0ef (5 x Stealc, 3 x Tofsee, 1 x Smoke Loader)
ssdeep 3072:Q5ftggilRdtSUdikel81BlWhxiHWzYrJZFk+33S+ELlYx2Ald:Rgu7tSUdMKRWhc2KJZCSiq
Threatray 341 similar samples on MalwareBazaar
TLSH T155542C1352E07D55F5264B328F6EE3E8771EF9918F293BAA1218AE2F09711B2C173711
TrID 39.5% (.EXE) InstallShield setup (43053/19/16)
28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.6% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 0001011131353510 (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://arturogillotti.icu/40d570f44e84a454.php

Intelligence


File Origin
# of uploads :
4
# of downloads :
389
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
redline
ID:
1
File name:
12f4b96090bb7a1aa45768f68870ef90.exe
Verdict:
Malicious activity
Analysis date:
2023-11-08 06:25:28 UTC
Tags:
privateloader evasion opendir loader risepro stealer stealc redline tofsee botnet ransomware stop miner smoke sinkhole

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

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Launching the default Windows debugger (dwwin.exe)
Gathering data
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
control greyware lolbin packed
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 / Scanner detection for submitted sample
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)
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 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.Generic
Status:
Malicious
First seen:
2023-11-08 06:46:04 UTC
File Type:
PE (Exe)
Extracted files:
63
AV detection:
15 of 37 (40.54%)
Threat level:
  2/5
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
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://arturogillotti.icu
Unpacked files
SH256 hash:
899cb0aff59fdbd1a1edf8d7c42180d38adb3b3849668bd0c469d1afc65464e5
MD5 hash:
7444af0a8014d31ac37c73ffec6518e0
SHA1 hash:
ef2bcdcd124f30206a95e17c4a4c7e462b76505c
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:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
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:Trojan_W32_Gh0stMiancha_1_0_0
Rule name:Windows_Trojan_Smokeloader_3687686f
Author:Elastic Security
Rule name:Windows_Trojan_Smokeloader_ea14b2a5
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: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 899cb0aff59fdbd1a1edf8d7c42180d38adb3b3849668bd0c469d1afc65464e5

(this sample)

  
Delivery method
Distributed via web download

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