MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8a1b4a3338480556ea537f577d27f4506280f77eb0834f92568ae412f66cd7a. 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



ArkeiStealer


Vendor detections: 9


Intelligence 9 IOCs YARA 5 File information Comments 1

SHA256 hash: b8a1b4a3338480556ea537f577d27f4506280f77eb0834f92568ae412f66cd7a
SHA3-384 hash: 914beaf7a01ffdf59a5188381ba99d2f36bbac06570485712e25c9c376401650defcbb78db0d340a5a08716d85e15740
SHA1 hash: 13616e4c5c603900d00f2a2e042c2ffb884e6d17
MD5 hash: 61a3613891e418fc0918aefa630acedf
humanhash: juliet-music-leopard-helium
File name:61a3613891e418fc0918aefa630acedf.exe
Download: download sample
Signature ArkeiStealer
File size:614'400 bytes
First seen:2021-04-21 13:50:38 UTC
Last seen:2021-04-21 15:00:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ba0a7f9922891caae880767b67e2d81 (8 x ArkeiStealer, 4 x RedLineStealer, 1 x FickerStealer)
ssdeep 12288:rKOLytne+LSy6kwJhEfsmyXvCDKviHot3Sjb6qKwk3o+oaue9o:uKgnV+y2J61axtCjbx+3o4V9o
Threatray 656 similar samples on MalwareBazaar
TLSH B5D4F12136C0C072C166257E4716C7F04E7E7875E91AE98BBBD42ABD4F347E1EA1630A
Reporter abuse_ch
Tags:ArkeiStealer exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a file
Connection attempt
Sending an HTTP GET request
Deleting a recently created file
Replacing files
Reading critical registry keys
Delayed writing of the file
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Launching a process
Stealing user critical data
Launching a tool to kill processes
Forced shutdown of a browser
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:
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Country aware sample found (crashes after keyboard check)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Chapak
Status:
Malicious
First seen:
2021-04-21 14:24:49 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:vidar discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Loads dropped DLL
Reads local data of messenger clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Vidar
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_EXE_References_CryptoWallets
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Ping_Del_method_bin_mem
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:win_vidar_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:with_sqlite
Author:Julian J. Gonzalez <info@seguridadparatodos.es>
Description:Rule to detect the presence of SQLite data in raw image
Reference:http://www.st2labs.com

File information


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

Web download

ArkeiStealer

Executable exe b8a1b4a3338480556ea537f577d27f4506280f77eb0834f92568ae412f66cd7a

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-21 14:05:12 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
1) [B0012.001] Anti-Static Analysis::Argument Obfuscation
2) [C0049] File System Micro-objective::Get File Attributes
3) [C0051] File System Micro-objective::Read File
4) [C0052] File System Micro-objective::Writes File
5) [C0007] Memory Micro-objective::Allocate Memory
6) [C0033] Operating System Micro-objective::Console
7) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
8) [C0040] Process Micro-objective::Allocate Thread Local Storage
9) [C0041] Process Micro-objective::Set Thread Local Storage Value
10) [C0018] Process Micro-objective::Terminate Process