MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f750412efad5bf0f076df8a8b17cb64baf90f77fbe449a11e149e8589508987. 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 YARA 3 File information Comments

SHA256 hash: 5f750412efad5bf0f076df8a8b17cb64baf90f77fbe449a11e149e8589508987
SHA3-384 hash: e06d6c991f247a0bc86277ba033decf53b71ca763f7dc6872f309eed5fae9b6f86ca2b67eead29d9fb8da5f939815d4c
SHA1 hash: 79010dd07ef575a23d0c028e393b214b3251547a
MD5 hash: e5f78a6955db68ab282a8f5d0c0b4d42
humanhash: stream-timing-social-single
File name:15-3.txt
Download: download sample
Signature OskiStealer
File size:335'363 bytes
First seen:2021-06-08 13:01:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7bb9d345a5fec4fbbf5100d6a3ffbb8c (88 x ArkeiStealer, 85 x OskiStealer, 1 x Reconyc)
ssdeep 6144:WfUauY68uSWCx+XA7mg2pNP1Ljo3cUW3ZVQpLqTAcrT:WwY68u1Cx+wm/pfstywKAM
Threatray 1'566 similar samples on MalwareBazaar
TLSH 70647C217680C231D85214B8C4FB867927E9BA632B76D1C77BC40A961F213F1ED7678B
Reporter srcr
Tags:exe OskiStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Creating a file
Deleting a recently created file
Reading critical registry keys
Replacing files
Creating a window
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
Sending a UDP request
Stealing user critical data
Launching a tool to kill processes
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:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.AveMaria
Status:
Malicious
First seen:
2021-06-08 13:02:23 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Oski
Unpacked files
SH256 hash:
5f750412efad5bf0f076df8a8b17cb64baf90f77fbe449a11e149e8589508987
MD5 hash:
e5f78a6955db68ab282a8f5d0c0b4d42
SHA1 hash:
79010dd07ef575a23d0c028e393b214b3251547a
Detections:
win_oski_auto win_oski_g0
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:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
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.

  
Delivery method
Other

Comments