MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4. 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: 12
| SHA256 hash: | 10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4 |
|---|---|
| SHA3-384 hash: | 32334b4d08d0fa24ad20757a85e899d12b2dd80a760dfd32c5db1e58a7c5eacdfcff3c311b30bb5fee1a7c454a9bf18c |
| SHA1 hash: | eb369158b45401422f550ca727c2b5a610bc7ab8 |
| MD5 hash: | b556492c8d162c4180c0c6a5c07e6abb |
| humanhash: | alanine-earth-yankee-mirror |
| File name: | SKBM-160821.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 694'272 bytes |
| First seen: | 2021-08-17 06:46:43 UTC |
| Last seen: | 2021-08-17 07:29:40 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:NXJNqcCx+8+/iMuzbe3hO2dVy3whNMgfTNBnefBgyC5+Wyco3zzpUdv5ho:N+e/UzbEhOqVqwzxQfWcw |
| Threatray | 2'610 similar samples on MalwareBazaar |
| TLSH | T1D2E46C7D3150B9AFD13BCD36C4580E15F66068A7A3CBC613E0532959D83D7AAAE402BF |
| 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://zzz.divendesign.in/6.jpg | https://threatfox.abuse.ch/ioc/191006/ |
| http://zzz.divendesign.in/1.jpg | https://threatfox.abuse.ch/ioc/191007/ |
| http://zzz.divendesign.in/2.jpg | https://threatfox.abuse.ch/ioc/191008/ |
| http://zzz.divendesign.in/3.jpg | https://threatfox.abuse.ch/ioc/191009/ |
| http://zzz.divendesign.in/4.jpg | https://threatfox.abuse.ch/ioc/191010/ |
| http://zzz.divendesign.in/5.jpg | https://threatfox.abuse.ch/ioc/191011/ |
| http://zzz.divendesign.in/7.jpg | https://threatfox.abuse.ch/ioc/191012/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SKBM-160821.rar
Verdict:
Malicious activity
Analysis date:
2021-08-17 04:36:00 UTC
Tags:
trojan stealer vidar loader
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
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
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
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.
Verdict:
Malicious
Result
Threat name:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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 submitted file
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:
2021-08-17 03:23:49 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 2'600 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:
zzz.divendesign.in
Unpacked files
SH256 hash:
6975ed4f5079cbe70adf0108145b5fd967e0262c9a40ddd0a17de3ea4c1381df
MD5 hash:
e93c155bba2e64e586335cd987d07cc0
SHA1 hash:
c971ae4a2266855e94ba9610a070d426a976667c
SH256 hash:
37222f03be3dd383e751bbfe75c720d31c1884db8b7bca671102df1b1604ab27
MD5 hash:
683ed9c4711a3634b700b88541e2ab6a
SHA1 hash:
bf6e66059a7a6528cb345d4c835606752fd0fed5
SH256 hash:
fbd6988908a291dff833d9d616043e3e11cb1f13425105fc87c4060bbdbff42b
MD5 hash:
7522c0445d14ea38e59bb87906cb40e7
SHA1 hash:
8d2c3458b5a00194fcc8b3556722526a7b7b9aed
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4
MD5 hash:
b556492c8d162c4180c0c6a5c07e6abb
SHA1 hash:
eb369158b45401422f550ca727c2b5a610bc7ab8
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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.
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