MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3163e680a9b1c5c3b4e64b0fe808b79c5090a69bb3a359fbe18bbf9064dc4517. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3163e680a9b1c5c3b4e64b0fe808b79c5090a69bb3a359fbe18bbf9064dc4517
SHA3-384 hash: 2bcb151790824a5d7ca1a33ed00089704e657440b96d398a41d8e2ac208d981161dab7e1db07d6388ed0aca7e82aa447
SHA1 hash: fd4f34bc1ee6df6d2d04860b2b39349ee6221bf7
MD5 hash: 46ddcd557521e886e2548e72097e01d6
humanhash: colorado-texas-freddie-pip
File name:46ddcd557521e886e2548e72097e01d6.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:268'800 bytes
First seen:2021-04-20 12:01:19 UTC
Last seen:2021-04-20 13:01:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:ZeAIATt+8WSk4HgsljGmbtfUeAIQHuA36cdqQ:ZJIATtq94HgsN7eeAItC66
Threatray 95 similar samples on MalwareBazaar
TLSH D84412106E94D734EA80C871EE35C17088B49E0FE93264DBE84CFE4BB67558CF52A726
Reporter abuse_ch
Tags:ArkeiStealer exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/139602/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.43029.3784.6167.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/689660
Signature
Allocates memory in foreign processes
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 393788 Sample: zj4NVQ6TKa.exe Startdate: 20/04/2021 Architecture: WINDOWS Score: 96 38 orisinlog.com 2->38 56 Multi AV Scanner detection for submitted file 2->56 58 Machine Learning detection for sample 2->58 60 Found many strings related to Crypto-Wallets (likely being stolen) 2->60 62 3 other signatures 2->62 8 zj4NVQ6TKa.exe 16 7 2->8         started        13 note.exe 14 2 2->13         started        15 note.exe 2 2->15         started        signatures3 process4 dnsIp5 40 www.yoursite.com 172.67.133.191, 443, 49713, 49714 CLOUDFLARENETUS United States 8->40 42 yoursite.com 8->42 28 C:\Users\user\AppData\Local\note.exe, PE32 8->28 dropped 30 C:\Users\user\AppData\...\zj4NVQ6TKa.exe, PE32 8->30 dropped 32 C:\Users\user\...\note.exe:Zone.Identifier, ASCII 8->32 dropped 34 2 other malicious files 8->34 dropped 64 Writes to foreign memory regions 8->64 66 Allocates memory in foreign processes 8->66 68 Injects a PE file into a foreign processes 8->68 17 zj4NVQ6TKa.exe 28 8->17         started        21 zj4NVQ6TKa.exe 8->21         started        44 104.21.14.15, 443, 49730, 49733 CLOUDFLARENETUS United States 13->44 46 yoursite.com 13->46 70 Multi AV Scanner detection for dropped file 13->70 72 Machine Learning detection for dropped file 13->72 48 yoursite.com 15->48 file6 signatures7 process8 dnsIp9 36 orisinlog.com 172.67.200.94, 443, 49726, 49727 CLOUDFLARENETUS United States 17->36 50 Tries to harvest and steal browser information (history, passwords, etc) 17->50 23 WerFault.exe 23 9 17->23         started        52 Multi AV Scanner detection for dropped file 21->52 54 Machine Learning detection for dropped file 21->54 signatures10 process11 file12 26 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->26 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3163e680a9b1c5c3b4e64b0fe808b79c5090a69bb3a359fbe18bbf9064dc4517/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gfr6nafjwhc4hnhgjmh6qcfxtrijbju3worvt67bro7zazg4iulq._file
Verdict:
malicious
Similar samples:
40afa1e323be151d0d7a38c72f771b0b9e909f49ddade942d4260a5e29e5ec2f
ArkeiStealer
5069de588ac1f23d1cfa14c3ee61e5bc351d0314a5bbac248a5210a9db7e5a8c
ArkeiStealer
5389a958986f6ceccaa9e44006852becbccabfb07f126d69e6b031227fb0b487
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614ea8187654128fc27a51455ab3c8fdbb6d398382cd4d825cf795dbbf5d7966
ArkeiStealer
b2a66114f2afb03bd4087e7fc37d6c89ff7f3d3bd48d751dc9334a5a746f7c37
ArkeiStealer
c0ff93ef4930a7dc2d95a6ee490fecdddcbe946e479b1d4fdb47285245b28675
ArkeiStealer
d217032899487162688fa6c3855e13040b074de38d9c57c91b47c1190842edc2
ArkeiStealer
d40dedd7f637a1ef9703b582a6d536469d1cf62bddc1a462a9cceeb7f9194f13
ArkeiStealer
d5825a48b525fa8f664ff98a98aec5164bbccab0a1bad2d17bb2aafebd148ffa
ArkeiStealer
db23d6f5e2123cde47f4e3178bf18063aa3270d13499991200c9074a837eff07
ArkeiStealer
+ 85 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer persistence spyware stealer
Link:
https://tria.ge/reports/210420-pzm1wbz236/
Behaviour
Checks processor information in registry
Kills process with taskkill
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Deletes itself
Reads user/profile data of web browsers
Oski
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3163e680a9b1c5c3b4e64b0fe808b79c5090a69bb3a359fbe18bbf9064dc4517

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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
Rule name:win_oski_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

ArkeiStealer

Executable exe 3163e680a9b1c5c3b4e64b0fe808b79c5090a69bb3a359fbe18bbf9064dc4517

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/139602/
  
URLhaus
https://urlhaus.abuse.ch/url/1143662/
  
Delivery method
Distributed via web download

Comments