MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f811cfc4610369aee904c7c14d67b944f7b6f6fe0e26d7220385295c726272cd. 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: 12


Intelligence 12 IOCs 1 YARA 4 File information Comments

SHA256 hash: f811cfc4610369aee904c7c14d67b944f7b6f6fe0e26d7220385295c726272cd
SHA3-384 hash: b75b87a9d5117841512f909925041b2de18010717cb9b18102d024cb85da9223ec2ba289b8cd6174ec21d2860b39fa80
SHA1 hash: 8fe649e6bc868401ba2a3b9bf345fc76692f53d4
MD5 hash: e9441b756f99ee3adf804214119c1fa1
humanhash: five-eighteen-mountain-helium
File name:e9441b756f99ee3adf804214119c1fa1.exe
Download: download sample
Signature ArkeiStealer
File size:1'648'640 bytes
First seen:2021-09-27 16:26:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0d4dbb56c32c47336294683fc02fb7e2 (22 x ArkeiStealer)
ssdeep 24576:QJ6EBIZYYdVXF1EX9uOJwQ5No04Hoawhb5BJnXvxWmmq0LBPdchd:QooW9/X/vgwQ5C04Ibb5BJXIVqMBPdY
Threatray 3'014 similar samples on MalwareBazaar
TLSH T19B75E12292A1F437D063F67CDE5A977F5E297E103C10580BAFE42D682B39381B52A357
File icon (PE):PE icon
dhash icon 399998ecd4d46c0e (74 x ArkeiStealer, 7 x Hancitor, 6 x Quakbot)
Reporter @abuse_ch
Tags:ArkeiStealer exe


Twitter
@abuse_ch
ArkeiStealer C2:
http://23.88.105.196/

Intelligence


File Origin
# of uploads :
1
# of downloads :
141
Origin country :
FR FR
Mail intelligence
No data
Vendor Threat Intelligence
ID:
1
File name:
e9441b756f99ee3adf804214119c1fa1.exe
Verdict:
Malicious activity
Analysis date:
2021-09-27 16:29:39 UTC
Tags:
trojan stealer vidar loader

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

Behaviour
Creating a window
Connection attempt to an infection source
Sending a TCP request to an infection source
Query of malicious DNS domain
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw
Score:
100 / 100
Signature
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
Machine Learning detection for sample
Multi AV Scanner detection for submitted 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 Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 491602 Sample: cYKFZFK0Rg.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 4 other signatures 2->50 6 cYKFZFK0Rg.exe 74 2->6         started        process3 dnsIp4 40 mas.to 88.99.75.82, 443, 49742 HETZNER-ASDE Germany 6->40 42 23.88.105.196, 49762, 49771, 80 ENZUINC-US United States 6->42 20 C:\Users\user\AppData\...\msvcp140[1].dll, PE32 6->20 dropped 22 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 6->22 dropped 24 C:\Users\user\AppData\...\freebl3[1].dll, PE32 6->24 dropped 26 9 other files (none is malicious) 6->26 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->52 54 Tries to harvest and steal browser information (history, passwords, etc) 6->54 56 Tries to steal Crypto Currency Wallets 6->56 11 WerFault.exe 9 6->11         started        14 WerFault.exe 9 6->14         started        16 WerFault.exe 9 6->16         started        18 5 other processes 6->18 file5 signatures6 process7 file8 28 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 11->28 dropped 30 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 14->30 dropped 32 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 16->32 dropped 34 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 18->34 dropped 36 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 18->36 dropped 38 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 18->38 dropped
Threat name:
Win32.Trojan.Chapak
Status:
Malicious
First seen:
2021-09-27 16:27:09 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:vidar discovery spyware stealer suricata
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
Program crash
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
Downloads MZ/PE file
Vidar Stealer
Suspicious use of NtCreateProcessExOtherParentProcess
Vidar
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Unpacked files
SH256 hash:
f811cfc4610369aee904c7c14d67b944f7b6f6fe0e26d7220385295c726272cd
MD5 hash:
e9441b756f99ee3adf804214119c1fa1
SHA1 hash:
8fe649e6bc868401ba2a3b9bf345fc76692f53d4
Malware family:
CryptOne
Verdict:
Malicious

YARA Signatures


MalareBazaar uses YARA rules from several public and non-public repositories, such as Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious proccess dumps they may create. Please note that only results from TLP:WHITE rules are being displayeyd.

Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Vidar
Author:kevoreilly
Description:Vidar Payload

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://23.88.105.196/ https://threatfox.abuse.ch/ioc/226961

File information


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

Web download

ArkeiStealer

Executable exe f811cfc4610369aee904c7c14d67b944f7b6f6fe0e26d7220385295c726272cd

(this sample)

  
Delivery method
Distributed via web download

Comments