MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a
SHA3-384 hash: 5e55ddc20e3e92ec651ef8d4d07f0ca6155543ab89a557c109dfc2a3524b30e68d51476e34247a5fe45df3f9d468d161
SHA1 hash: 0c5d5c68804d2792ba0223c8ed6b5ef63093540c
MD5 hash: 9406fa8094f62e98c4445f6ca1bd687d
humanhash: ceiling-bluebird-nine-kitten
File name:9406fa8094f62e98c4445f6ca1bd687d.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:6'874'800 bytes
First seen:2022-09-17 06:50:41 UTC
Last seen:2022-09-17 08:25:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7a4eaeda5ddff0d1cd8a6ce950f0f8c8 (10 x ArkeiStealer)
ssdeep 98304:N8bZ43hbmCh+H33oCJDmydqKkLtP9v/vhbP8lKaMtD8iEZYKJI/9Lgk:C+3tUHHXhmyUKi19XvdPiTCAm/x
TLSH T1E7663367126A0144E1E9CC3ACE23BE8A31F1633B9A819CBCB5AD5DC633155D4E717E83
TrID 29.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
22.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4505/5/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter abuse_ch
Tags:ArkeiStealer exe


Avatar
abuse_ch
ArkeiStealer C2:
http://94.131.97.111/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://94.131.97.111/ https://threatfox.abuse.ch/ioc/850135/

Intelligence

File Origin
# of uploads :
2
# of downloads :
345
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
arkei
Create hunting rule
ID:
1
File name:
9406fa8094f62e98c4445f6ca1bd687d.exe
Verdict:
Malicious activity
Analysis date:
2022-09-17 06:54:35 UTC
Tags:
trojan stealer arkei
Link:
https://app.any.run/tasks/99fab5a0-2afa-4d68-95d2-1d5b0656d442

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/310857/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen3.22301.6264.2196.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Launching a process
Using the Windows Management Instrumentation requests
Searching for the window
Stealing user critical data
Launching a tool to kill processes
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/63256e96b564f001cc90cb05/reports/a13d2c89-1152-47a6-95a1-c0585dae9281/overview
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/a761027f-b108-4dd6-95bb-04bc97a97bc3
Result
Threat name:
Clipboard Hijacker, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1072140
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
PE file has nameless sections
Self deletion via cmd or bat file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Clipboard Hijacker
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 704677 Sample: HR4nEX9ToS.exe Startdate: 17/09/2022 Architecture: WINDOWS Score: 100 63 Multi AV Scanner detection for domain / URL 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Antivirus detection for URL or domain 2->67 69 9 other signatures 2->69 8 HR4nEX9ToS.exe 22 2->8         started        13 eventvwr.exe 2->13         started        process3 dnsIp4 49 t.me 149.154.167.99, 443, 49714 TELEGRAMRU United Kingdom 8->49 51 94.131.97.111, 49715, 80 NASSIST-ASGI Ukraine 8->51 53 193.149.129.135, 49718, 80 DANISCODK Denmark 8->53 43 C:\Users\user\...\81852849956384[1].bin, PE32 8->43 dropped 45 C:\ProgramData\62292376963471041927.exe, PE32 8->45 dropped 71 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 8->71 73 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 8->73 75 Self deletion via cmd or bat file 8->75 83 3 other signatures 8->83 15 62292376963471041927.exe 4 8->15         started        19 cmd.exe 1 8->19         started        77 Multi AV Scanner detection for dropped file 13->77 79 Detected unpacking (changes PE section rights) 13->79 81 Detected unpacking (overwrites its own PE header) 13->81 85 2 other signatures 13->85 21 schtasks.exe 1 13->21         started        file5 signatures6 process7 file8 47 C:\Users\user\AppData\...\eventvwr.exe, PE32 15->47 dropped 55 Multi AV Scanner detection for dropped file 15->55 57 Detected unpacking (changes PE section rights) 15->57 59 Detected unpacking (overwrites its own PE header) 15->59 61 3 other signatures 15->61 23 schtasks.exe 1 15->23         started        25 schtasks.exe 1 15->25         started        27 schtasks.exe 1 15->27         started        29 taskkill.exe 1 19->29         started        31 conhost.exe 19->31         started        33 timeout.exe 1 19->33         started        35 conhost.exe 21->35         started        signatures9 process10 process11 37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a/
Threat name:
Win32.Infostealer.Bandra
Create hunting rule
Status:
Malicious
First seen:
2022-09-17 06:51:16 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wlf7vfq6raek6srv2serwntao2i3t6itghe7uw4t6cd7jlvmfnfa._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/220917-hmg5nadcbl/
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
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/11119d50-4bf4-4b02-b8b2-69eb196047bd
Unpacked files
SH256 hash:
38602f076460657f5019d54ef67b1c318a7157f317965a615c77953762657ee0
MD5 hash:
0f1f900bd5a22e89a7d9bc96748fb88b
SHA1 hash:
a314c7d22fb65cd6375ab1ec8b2051ed44b1e148
Link:
https://www.unpac.me/results/a73c3939-8310-4d86-bde6-429023a0f76f/
SH256 hash:
b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a
MD5 hash:
9406fa8094f62e98c4445f6ca1bd687d
SHA1 hash:
0c5d5c68804d2792ba0223c8ed6b5ef63093540c
Link:
https://www.unpac.me/results/a73c3939-8310-4d86-bde6-429023a0f76f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2cbfa961e88/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a

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:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules

File information

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

Web download

ArkeiStealer

Executable exe b2cbfa961e8808af4a35d4891b36607691b9f91331c9fa5b93f087f4aeac2b4a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2301595/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/310857/

Comments