MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 913a7c8a88dc0720ff7fe2005243939f2fdadc129f69a46cc8fcfe54a16f0e75. 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: 10
| SHA256 hash: | 913a7c8a88dc0720ff7fe2005243939f2fdadc129f69a46cc8fcfe54a16f0e75 |
|---|---|
| SHA3-384 hash: | 734fcd1a100d166dc42bb8d294d2297cb3774c55c1ac7cedac47e5a7eecfe20e77699a5b1589976890d1754282d3bb65 |
| SHA1 hash: | 1f84eecb02e4179c554f8cfe27fad4b17d26025d |
| MD5 hash: | 8577d33d01e9b4d70ba0abef53c03277 |
| humanhash: | cup-magazine-angel-comet |
| File name: | 8577d33d01e9b4d70ba0abef53c03277.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 364'241 bytes |
| First seen: | 2022-03-30 02:07:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:TGifEXyQcxh6aS5N8VyPSM4Va3978iQaqmf6g7JWXz:ADcxh6a2WsBZ8v06g1Wj |
| Threatray | 722 similar samples on MalwareBazaar |
| TLSH | T1CF74F14B4C95B9A7C5884A333579AB2D932F1E8D7CF8E2470F6CBAEDD7B31811425902 |
| File icon (PE): |  |
| dhash icon | 4c33d8d4d4d8324c (40 x AgentTesla, 23 x RedLineStealer, 15 x RemcosRAT) |
| Reporter |  abuse_ch |
| Tags: | exe OskiStealer |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://e4v5sa.xyz/6.jpg | https://threatfox.abuse.ch/ioc/464047/ |
| http://e4v5sa.xyz/1.jpg | https://threatfox.abuse.ch/ioc/464048/ |
| http://e4v5sa.xyz/2.jpg | https://threatfox.abuse.ch/ioc/464049/ |
| http://e4v5sa.xyz/3.jpg | https://threatfox.abuse.ch/ioc/464050/ |
| http://e4v5sa.xyz/4.jpg | https://threatfox.abuse.ch/ioc/464051/ |
| http://e4v5sa.xyz/5.jpg | https://threatfox.abuse.ch/ioc/464052/ |
| http://e4v5sa.xyz/7.jpg | https://threatfox.abuse.ch/ioc/464053/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
221
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Vidar
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
DNS request
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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.
Gathering data
Result
Threat name:
Oski Stealer Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GenericML
Status:
Malicious
First seen:
2022-03-30 02:08:07 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
25 of 42 (59.52%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 712 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski infostealer spyware stealer suricata
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Malware Config
C2 Extraction:
e4v5sa.xyz
Unpacked files
SH256 hash:
913a7c8a88dc0720ff7fe2005243939f2fdadc129f69a46cc8fcfe54a16f0e75
MD5 hash:
8577d33d01e9b4d70ba0abef53c03277
SHA1 hash:
1f84eecb02e4179c554f8cfe27fad4b17d26025d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.28
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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