MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2a0fdf6caf5be2b84dcc0efb0c59082fa67350d49a1f2951b451df6f1d2bb21. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f2a0fdf6caf5be2b84dcc0efb0c59082fa67350d49a1f2951b451df6f1d2bb21
SHA3-384 hash: 86b11a7e8dd54fd6f7fc07f80a846a7b9b3c8edeca7440479ed2517e4adfbae88703aabeadaae7a084d803cd2929291a
SHA1 hash: 575b9232fd35d6fa2c03a17a2264709100422519
MD5 hash: 00b7b0b4b9698517c81bc27dd3a6c3b8
humanhash: whiskey-bacon-colorado-aspen
File name:os2.exe
Download: download sample
Signature ArkeiStealer
Create hunting rule
File size:374'784 bytes
First seen:2020-08-24 14:58:17 UTC
Last seen:2020-08-24 17:35:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 6144:zLFZmg9PSz1Z2k14NiXljL/nkoBThpq+yaaBYrexFuaDO5D0MWsgbii5JygyAVZ1:XFZmmPOck9XlL/koBT5kgYO5D5GbBbVZ
Threatray 298 similar samples on MalwareBazaar
TLSH AC84E05C3614B78FE83F8DBAA9681D34537132776307F2638D43A9E9A51DA928F110E3
Reporter JAMESWT_WT
Tags:ArkeiStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/50278/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.405.28702.18178.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Deleting a recently created file
Reading critical registry keys
Replacing files
Delayed writing of the file
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Connection attempt to an infection source
Stealing user critical data
Launching a tool to kill processes
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/447722
Signature
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Crypto Currency Wallets
Yara detected AntiVM_3
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f2a0fdf6caf5be2b84dcc0efb0c59082fa67350d49a1f2951b451df6f1d2bb21/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 02:49:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6kqp35wk6w7cxbg4ydx3brmqql5goninjgq7ffi3iuo7n4osxmqq._file
Verdict:
unknown
Similar samples:
1553300557f17e7cb62c914616267bc733854b98a0edc5215d901cc4f8e4d0f0
ArkeiStealer
33b70dd4266c366a2d80bfacb2b1aafdafc74019b0e8a6aa480bd909e73f3a6e
ArkeiStealer
484ff6267219f9eb4794c1f20aaa9562a459e0d1a787743592b1532eda3be541
ArkeiStealer
496b39b696da8c81b7f0d57b3b591a9c948bf88d8ba375618703edcb18f4c27d
ArkeiStealer
682be0853ccd6f60deb69d27941a628758c4e13e7d2e6ee95a95f415f3a9f0c6
ArkeiStealer
8959562f5a87f40b9c3917a98e10d68e2c459c8df9bdd9664f615af6d5b9959e
ArkeiStealer
9c2eb5790e7874950db0e51764ba68bb4a0fa5be68b659717c73363883da0db7
ArkeiStealer
b699a2766f106ff77377780bad431b72ef1748bf989e09f2b82fb73cf30cbde3
ArkeiStealer
c158b8ed8c9a0221bfeb3dea8d026d5bb9bade9ecfd19191ada59c51c8eb4089
ArkeiStealer
f09dc0b3275b4c1e3a616911805011c2871af1407599493dc980b6987cb313eb
ArkeiStealer
+ 288 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
spyware discovery infostealer family:oski
Link:
https://tria.ge/reports/200824-lxk4k5wa8x/
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses cryptocurrency wallets, possible credential harvesting
Checks installed software on the system
JavaScript code in executable
Deletes itself
Loads dropped DLL
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f2a0fdf6caf5be2b84dcc0efb0c59082fa67350d49a1f2951b451df6f1d2bb21

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:win_oski_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_oski_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Web download

ArkeiStealer

Executable exe f2a0fdf6caf5be2b84dcc0efb0c59082fa67350d49a1f2951b451df6f1d2bb21

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/50278/
  
URLhaus
https://urlhaus.abuse.ch/url/439790/
  
Delivery method
Distributed via web download

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