MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4acff00f1935efe2a12c8537de8b10c33bd714a07a8cdaafb56459f368acc669. 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: 13
| SHA256 hash: | 4acff00f1935efe2a12c8537de8b10c33bd714a07a8cdaafb56459f368acc669 |
|---|---|
| SHA3-384 hash: | 40dbf93e87449d4fba3f84bc64a3c9c195912cb49aa445836ad08a041702f0dcafe5b40b16a11304162487ccb45d9a54 |
| SHA1 hash: | 1a7c604c424ec26c413eac9788c57668370dd3a5 |
| MD5 hash: | ab4ad2e9e771c6b25a452fb94b1cb033 |
| humanhash: | hawaii-river-tennessee-bacon |
| File name: | ab4ad2e9e771c6b25a452fb94b1cb033 |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 1'058'816 bytes |
| First seen: | 2021-10-07 22:38:05 UTC |
| Last seen: | 2021-10-08 00:09:23 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:58b07GDyL9pD3n+0SDzqu8qbPhtTAdCKYYOd4mqTh4M:eGG+L7D3+1P8qbZadCDq |
| Threatray | 3'819 similar samples on MalwareBazaar |
| TLSH | T1793507002695CB11D1B637F4D860CAF093656C55DA29C28B2DF1BEEB79B1B03CE11A9F |
| Reporter |  zbetcheckin |
| Tags: | 32 exe OskiStealer |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://lg-tvproducts.xyz/6.jpg | https://threatfox.abuse.ch/ioc/231211/ |
| http://lg-tvproducts.xyz/1.jpg | https://threatfox.abuse.ch/ioc/231212/ |
| http://lg-tvproducts.xyz/2.jpg | https://threatfox.abuse.ch/ioc/231213/ |
| http://lg-tvproducts.xyz/3.jpg | https://threatfox.abuse.ch/ioc/231214/ |
| http://lg-tvproducts.xyz/4.jpg | https://threatfox.abuse.ch/ioc/231215/ |
| http://lg-tvproducts.xyz/5.jpg | https://threatfox.abuse.ch/ioc/231216/ |
| http://lg-tvproducts.xyz/7.jpg | https://threatfox.abuse.ch/ioc/231217/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab4ad2e9e771c6b25a452fb94b1cb033
Verdict:
Malicious activity
Analysis date:
2021-10-07 22:40:36 UTC
Tags:
trojan stealer vidar loader phishing
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
fareit monero obfuscated packed vobfus
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Downloads files with wrong headers with respect to MIME Content-Type
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 sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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)
Tries to steal Crypto Currency Wallets
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-07 16:51:22 UTC
AV detection:
9 of 28 (32.14%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 3'809 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer suricata
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
lg-tvproducts.xyz
Unpacked files
SH256 hash:
8f284449b8f7736b02bea62461082f35d22162efd06c511ef70576abf0ea4773
MD5 hash:
c56694f8c987e219fd6748a5eac39245
SHA1 hash:
cef338d085384e75bb5bff79ee3bd2d3d6974ad1
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
SH256 hash:
5b16dd238187b5befd53bba918112083a5990c73fe8d0606b3eec65cc3a5aaf6
MD5 hash:
dff8a81f8ca81545b9f960470ab77267
SHA1 hash:
5ad9fe77c2c9bbaf78ad118324ae1e0384202c54
Detections:
win_oski_g0
win_oski_auto
Parent samples :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 hash:
4acff00f1935efe2a12c8537de8b10c33bd714a07a8cdaafb56459f368acc669
MD5 hash:
ab4ad2e9e771c6b25a452fb94b1cb033
SHA1 hash:
1a7c604c424ec26c413eac9788c57668370dd3a5
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
vidar
Score:
1.00
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: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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