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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2da08e5a86ad90f6727c65f81a523de70a45a8a04c35c50021378ab2e4f46e5a. 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



OskiStealer


Vendor detections: 11


Intelligence 11 IOCs 7 YARA 6 File information Comments

SHA256 hash: 2da08e5a86ad90f6727c65f81a523de70a45a8a04c35c50021378ab2e4f46e5a
SHA3-384 hash: 7a92e0162aee68c31f09187c82a0f77876d9011c05f2e5b121dad16212a3627da4721333eb554a95cdba24020871e323
SHA1 hash: 164ccd4c156e2ce59f2f1d1d27045f3a72ab8a3d
MD5 hash: a57673cdd862db5fd8482eaeb3b9a606
humanhash: berlin-alabama-xray-artist
File name:a57673cdd862db5fd8482eaeb3b9a606.exe
Download: download sample
Signature OskiStealer
File size:531'456 bytes
First seen:2021-06-15 04:01:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'298 x AgentTesla, 20'717 x Formbook, 12'402 x SnakeKeylogger)
ssdeep 12288:DUbxdYqn8IME0/lcbnKsn9RjkvqXzntevcK5QmSRXDUpreTN:nY8I4lAKqPgJvcBmQXB
Threatray 322 similar samples on MalwareBazaar
TLSH 51B4F16833991F93E4BE06F681F12B551765C16BD34ED30E6D8D19F80C99BCB8A0B18B
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://dzworx.com/6.jpg

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://dzworx.com/6.jpg https://threatfox.abuse.ch/ioc/115145/
http://dzworx.com/2.jpg https://threatfox.abuse.ch/ioc/115146/
http://dzworx.com/1.jpg https://threatfox.abuse.ch/ioc/115147/
http://dzworx.com/5.jpg https://threatfox.abuse.ch/ioc/115148/
http://dzworx.com/3.jpg https://threatfox.abuse.ch/ioc/115149/
http://dzworx.com/4.jpg https://threatfox.abuse.ch/ioc/115150/
http://dzworx.com/7.jpg https://threatfox.abuse.ch/ioc/115151/

Intelligence


File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a57673cdd862db5fd8482eaeb3b9a606.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-15 04:02:53 UTC
Tags:
n/a

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

Behaviour
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Creating a file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Tries to evade analysis by execution special instruction which cause usermode exception
Writes to foreign memory regions
Yara detected Oski Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2021-06-13 03:15:26 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:oski infostealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Oski
Malware Config
C2 Extraction:
dzworx.com
Unpacked files
SH256 hash:
ecd5beccf1f6e7adab40682f969d5f487b4a4c3a965f6c90f093900f86ea0df2
MD5 hash:
f5adac63ebf5b12ea98b1d5f9826640b
SHA1 hash:
93211d4c097d9e91183ef7d253b71bbbdef8862b
Detections:
win_oski_g0 win_oski_auto
SH256 hash:
2da08e5a86ad90f6727c65f81a523de70a45a8a04c35c50021378ab2e4f46e5a
MD5 hash:
a57673cdd862db5fd8482eaeb3b9a606
SHA1 hash:
164ccd4c156e2ce59f2f1d1d27045f3a72ab8a3d
Please note that we are no longer able to provide a coverage score for Virus Total.

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_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Vidar
Author:kevoreilly
Description:Vidar Payload
Rule name:win_oski_auto
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.

Comments