MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 be52ba286982ecb2bda4033824ce2fb1147300af2c5106cfed27cf3fb6022b1f. 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: 9
| SHA256 hash: | be52ba286982ecb2bda4033824ce2fb1147300af2c5106cfed27cf3fb6022b1f |
|---|---|
| SHA3-384 hash: | 0592b699e788973572c553fc8475c24a5c9838e301d76fd2f511c02f4698faa87602acff20a7963e0090e22dbd707964 |
| SHA1 hash: | 41a201db5fabb2f0e245d902fc69df141b91f4c1 |
| MD5 hash: | bb87e7ff6d125e8c0183018c86fa81e6 |
| humanhash: | snake-green-london-robert |
| File name: | bb87e7ff6d125e8c0183018c86fa81e6 |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 296'247 bytes |
| First seen: | 2022-03-03 09:51:47 UTC |
| Last seen: | 2022-03-03 19:15:52 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGidlf9ja8ZbKaQLf9ibO/948aQofuacwGwni4OaCEP05gHxG/j:nVe8ZbKaQDew9MSwi+65F |
| Threatray | 4'218 similar samples on MalwareBazaar |
| TLSH | T1AE54221AD2D076B7C2B488704C32267DFBBB85AB00F1115313F6AFA57B670D68119AE7 |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe OskiStealer |
Intelligence
File Origin
# of uploads :
3
# of downloads :
242
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
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)
Unauthorized injection to a recently created process
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.
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Stealer Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Downloads files with wrong headers with respect to MIME Content-Type
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
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)
Tries to steal Crypto Currency Wallets
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-03-03 07:29:13 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 27 (77.78%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 4'208 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Oski
Malware Config
C2 Extraction:
http://tel9e.xyz
Unpacked files
SH256 hash:
be52ba286982ecb2bda4033824ce2fb1147300af2c5106cfed27cf3fb6022b1f
MD5 hash:
bb87e7ff6d125e8c0183018c86fa81e6
SHA1 hash:
41a201db5fabb2f0e245d902fc69df141b91f4c1
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.28
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: | Detects win.oski. |
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
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.url : hxxp://192.210.149.28/30/vbc.exe