MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 023a40eef791f4a545b8f2afba47e34999d33aa692d5b2918da973790236e8ff. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 023a40eef791f4a545b8f2afba47e34999d33aa692d5b2918da973790236e8ff
SHA3-384 hash: e0e457c0e3f9bf2bf116c13fa00baccb0ae9dd158a1bbfeba5fb093c293777fda6b575fbf477a921e6b65abacdb67f26
SHA1 hash: 61aadefcaab2030e1ccf1eef26f205b21ef93806
MD5 hash: 3241a0a8474740585f1b94542e5bc11c
humanhash: october-winter-potato-august
File name:file
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:4'784'128 bytes
First seen:2022-10-11 14:51:46 UTC
Last seen:2022-10-12 05:32:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 98304:Enoglt0vUjSOvO7uSgtXgauvcjq9aCTMFWbQC:MogXjSuO7uDgnMFWbV
Threatray 637 similar samples on MalwareBazaar
TLSH T18026F1F490AB04E6F80B6DE0697C7DD2467176F38DD80E20137EF6048FA79696A0895F
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 69ccd4d49696cc71 (13 x Adware.Adload, 8 x CoinMiner, 7 x ValleyRAT)
Reporter andretavare5
Tags:ArkeiStealer exe


Avatar
andretavare5
Sample downloaded from https://vk.com/doc638734270_651431996?hash=2nRsNln9JxYzcCvc2ZdIPPA2yoW5MZq0WrXIDZpXGyH&dl=GYZTQNZTGQZDOMA:1665498403:LfeMkXheJ1GCEF9M1VZx4X9LX8w7WH7RmcrKGuLmkL0&api=1&no_preview=1#orig

Intelligence

File Origin
# of uploads :
280
# of downloads :
276
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/318997/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Launching a process
Creating a process with a hidden window
Creating a file in the system32 subdirectories
Sending a custom TCP request
Creating a file
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Unauthorized injection to a recently created process
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6345831433e66132ed02ae2f/reports/502a1cb2-23d7-4b8f-9711-e22bda4fa890/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/13bc3eca-de3d-4e89-bc83-a026094fac07
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1088085
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Self deletion via cmd or bat file
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
Yara detected Costura Assembly Loader
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 720676 Sample: file.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 6 other signatures 2->40 8 file.exe 2 2->8         started        process3 file4 28 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->28 dropped 42 Encrypted powershell cmdline option found 8->42 44 Self deletion via cmd or bat file 8->44 46 Injects a PE file into a foreign processes 8->46 12 file.exe 19 8->12         started        16 powershell.exe 15 8->16         started        signatures5 process6 dnsIp7 30 t.me 149.154.167.99, 443, 49689 TELEGRAMRU United Kingdom 12->30 32 23.88.115.141, 49690, 80 ENZUINC-US United States 12->32 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Self deletion via cmd or bat file 12->50 52 Tries to harvest and steal browser information (history, passwords, etc) 12->52 54 Tries to steal Crypto Currency Wallets 12->54 18 cmd.exe 1 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 taskkill.exe 1 18->22         started        24 conhost.exe 18->24         started        26 timeout.exe 1 18->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/023a40eef791f4a545b8f2afba47e34999d33aa692d5b2918da973790236e8ff/
Threat name:
ByteCode-MSIL.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-11 14:52:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ai5eb3xxsh2kkrny6kx3ur7djgm5govgslk3femnvfzxsarw5d7q._file
Verdict:
malicious
Similar samples:
0a696cdecabbeb02700dfec14eaa5b165d17267f311ef7ddbb7264caddc551a3
ArkeiStealer
11f9829d6e35d28cdd44e66a30bf6db39d5cbcae88a3743ba4555b89c805b4a4
ArkeiStealer
15aa3f4843cd93375a309e74000e94018cb9215b55e208384687cb10ad8fed91
ArkeiStealer
3af3279ede125805a47682382304f6b76af4e7c34c2bfeaa198e0dc38f3ad1b6
ArkeiStealer
722a297fad3b3764bd9f4df0b3bf5d403a367d8dcb22e1a5821f9c44296a8760
ArkeiStealer
e3c67cd0facc741f5a8fca337949d8c5ea5705b3a380525cc84a11660ce53366
ArkeiStealer
+ 627 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:1699 discovery spyware stealer
Link:
https://tria.ge/reports/221011-r8qhlaaeg5/
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
Suspicious use of SetThreadContext
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 user/profile data of web browsers
Vidar
Malware Config
C2 Extraction:
https://t.me/larsenup
https://ioc.exchange/@zebra54
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/91f6bba5-3b76-4386-9bff-c1cc8d2f00a8
Unpacked files
SH256 hash:
a6acfe617040a5005be0d1675756dc9f09596d3bb2bb3ebc8a2c6881b8c4cfd7
MD5 hash:
db843358b89f4074346cab346720ab06
SHA1 hash:
94d77a5f2d66f20baf557ad30c3ab284665980d9
Link:
https://www.unpac.me/results/d7617efc-9e25-4f4f-9e2d-6835a26e8ecf/
SH256 hash:
6472053ff12fbe99d41fd63b1c8a7fdf02a8610624ed00bfcd53b2f129f1ba61
MD5 hash:
3b47ca05fc1f4f910089713ac204b8e5
SHA1 hash:
402c8a1af41e536000fd8914f51b703272060089
Link:
https://www.unpac.me/results/d7617efc-9e25-4f4f-9e2d-6835a26e8ecf/
SH256 hash:
023a40eef791f4a545b8f2afba47e34999d33aa692d5b2918da973790236e8ff
MD5 hash:
3241a0a8474740585f1b94542e5bc11c
SHA1 hash:
61aadefcaab2030e1ccf1eef26f205b21ef93806
Link:
https://www.unpac.me/results/d7617efc-9e25-4f4f-9e2d-6835a26e8ecf/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/023a40eef791/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/023a40eef791f4a545b8f2afba47e34999d33aa692d5b2918da973790236e8ff

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Vidar
Create hunting rule
Author:kevoreilly,rony
Description:Vidar Payload
Rule name:win_vidar_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.vidar.

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/318997/

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