MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e. 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 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e
SHA3-384 hash: a514a37d5e71ed3808a080d80503ea6d365caa579f98bb0fd2130f612055eb3342c96092cd8bb2ffea637a0210289a7a
SHA1 hash: 761a6c6d208ff0cc79b9f195246c031c64862cdf
MD5 hash: 6f2ab89d5632a82f902b44af7b251313
humanhash: missouri-fruit-eleven-paris
File name:6f2ab89d5632a82f902b44af7b251313.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:1'534'976 bytes
First seen:2021-09-23 17:15:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c32368f78c61cf2d9d6654d89861a9fe (36 x ArkeiStealer)
ssdeep 24576:HBuzcdGnDDg1EX9uOJwQ5No04Hoawhb5BJnXvxWmmq0LBPdchd:H2DSvgwQ5C04Ibb5BJXIVqMBPdY
Threatray 2'956 similar samples on MalwareBazaar
TLSH T12165E0259291F437D1B3FA78DD969B7F9B3C7E103910080B6EE82D691B2A3C0B518767
File icon (PE):PE icon
dhash icon 399998ecd4d46c0e (572 x Quakbot, 137 x ArkeiStealer, 82 x GCleaner)
Reporter abuse_ch
Tags:ArkeiStealer exe


Avatar
abuse_ch
ArkeiStealer C2:
http://159.69.203.58/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://159.69.203.58/ https://threatfox.abuse.ch/ioc/225251/

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6f2ab89d5632a82f902b44af7b251313.exe
Verdict:
Malicious activity
Analysis date:
2021-09-23 17:16:54 UTC
Tags:
trojan stealer vidar loader
Link:
https://app.any.run/tasks/5ec811be-f603-49a2-aab2-3a5b03cb2a59

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/190840/
Detection(s):
SecuriteInfo.com.Adware.Generic4.AANW.UNOFFICIAL
Create hunting rule

Win.Dropper.Zusy-9895684-0
Create hunting rule

Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/449106b2-7bf0-4469-98b6-42b41aefc2e2
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/856772
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
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 489200 Sample: 5dQit72En0.exe Startdate: 23/09/2021 Architecture: WINDOWS Score: 92 49 Found malware configuration 2->49 51 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->51 53 Yara detected Vidar 2->53 55 3 other signatures 2->55 6 5dQit72En0.exe 75 2->6         started        process3 dnsIp4 43 159.69.203.58, 49788, 49807, 80 HETZNER-ASDE Germany 6->43 45 mas.to 88.99.75.82, 443, 49755 HETZNER-ASDE Germany 6->45 21 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 6->21 dropped 23 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 6->23 dropped 25 C:\Users\user\AppData\...\mozglue[1].dll, PE32 6->25 dropped 27 9 other files (none is malicious) 6->27 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->57 59 Tries to harvest and steal browser information (history, passwords, etc) 6->59 61 Tries to steal Crypto Currency Wallets 6->61 11 WerFault.exe 9 6->11         started        15 WerFault.exe 9 6->15         started        17 WerFault.exe 9 6->17         started        19 5 other processes 6->19 file5 signatures6 process7 dnsIp8 47 192.168.2.1 unknown unknown 11->47 29 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 11->29 dropped 31 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 15->31 dropped 33 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 17->33 dropped 35 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->35 dropped 37 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->37 dropped 39 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->39 dropped 41 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->41 dropped file9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2021-09-23 17:16:05 UTC
AV detection:
20 of 45 (44.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ih726jmpvoys6q7xsjcdjn45fvemu6iw2axfc76l6gqvk42yk4pa._file
Verdict:
malicious
Similar samples:
0b9e99da4b12b612062039c318ecb8a60a75dae6cdf44504d9fdcc5c46a8e7bf
ArkeiStealer
0ef36338f594d26088330a0be5326478f56b9f939a1e3e7f96b11f996eecf9b9
ArkeiStealer
1c78bd6b7fda2a4a64059059a977e58a98ee75f4a6698f8445cc73cd8fda715a
ArkeiStealer
5b2fce91cda0fa71818a683c57c88eb1533b70bcfb5e82b312757b3015d69801
ArkeiStealer
69fb7b86d91b3770791529e3edab3aa7ed335c7cc66c8027f401fd4cd4088034
ArkeiStealer
984889d4f3b6e42845c4cefc4bd1ac4388ca5f5fa99dd07cbf774774c2ffaa06
ArkeiStealer
9a1a0ef7b9a7726ef1fc9e3072d38d3ade8ed81892271211b3bf882cc0fe8d8e
ArkeiStealer
a0fe1b67b36de1fb840f027beb5274d66b82873b3f62d922de5a6b36b451a41e
ArkeiStealer
ac6210c624a515206e040bf5d24757993ae6975b884f74bf00685cd33145fbbb
ArkeiStealer
e9c16d954e11dae123f981ec7477975abbca8fcbbdbf0a4104eb79ead96ad8c1
ArkeiStealer
+ 2'946 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar discovery spyware stealer suricata
Link:
https://tria.ge/reports/210923-vs48laegbq/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
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:
41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e
MD5 hash:
6f2ab89d5632a82f902b44af7b251313
SHA1 hash:
761a6c6d208ff0cc79b9f195246c031c64862cdf
Link:
https://www.unpac.me/results/7c877030-ce9d-471e-a8c0-b3c5283f1c2b/
Malware family:
CryptOne
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/41ffaf258fab/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.67
Link:
https://yomi.yoroi.company/submissions/41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e

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

File information

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

Web download

ArkeiStealer

Executable exe 41ffaf258fabb12f43f7924434b79d2d48ca7916d02e517fcbf1a1557358571e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1627241/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/190840/

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