MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 26a0913c70fe7c2852dda7fb0d9dd44b2575735b124fc2c3f47e36d51c7f9250. 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
| SHA256 hash: | 26a0913c70fe7c2852dda7fb0d9dd44b2575735b124fc2c3f47e36d51c7f9250 |
|---|---|
| SHA3-384 hash: | 52434250c4c309aa5a057e4a26004a7e39acd1603a069f471220c2c314499db93d52fab64acc62f0740404fd636d2223 |
| SHA1 hash: | f3e73d64ab4de13a6be4e2261df7cda93af3ef8f |
| MD5 hash: | a5d93b3b2d5e690db84d4ba524acc305 |
| humanhash: | washington-tennis-ceiling-six |
| File name: | wmuHclz87ynxvB8.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 770'048 bytes |
| First seen: | 2021-06-10 11:56:29 UTC |
| Last seen: | 2021-06-10 12:38:40 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:xD9OEvXqxYM9iIfFKfffHELkvjtvfydLo949qley2I/QpMbl2u+UfOYyhdME1sZF:PpRvJHcLoCi+WtAl7MKsNeBUdt |
| Threatray | 1'477 similar samples on MalwareBazaar |
| TLSH | A3F4E02166888F11F47FB77E5424400477F1F02BE316D78DBCF046EE1966A818AB7A6B |
| 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://45.180.174.39/6.jpg | https://threatfox.abuse.ch/ioc/85849/ |
| http://45.180.174.39/1.jpg | https://threatfox.abuse.ch/ioc/85850/ |
| http://45.180.174.39/2.jpg | https://threatfox.abuse.ch/ioc/85851/ |
| http://45.180.174.39/3.jpg | https://threatfox.abuse.ch/ioc/85852/ |
| http://45.180.174.39/4.jpg | https://threatfox.abuse.ch/ioc/85853/ |
| http://45.180.174.39/5.jpg | https://threatfox.abuse.ch/ioc/85854/ |
| http://45.180.174.39/7.jpg | https://threatfox.abuse.ch/ioc/85855/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
wmuHclz87ynxvB8.exe
Verdict:
Malicious activity
Analysis date:
2021-06-10 11:57:41 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
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
.NET source code contains potential unpacker
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 dropped file
Machine Learning detection for sample
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2021-06-10 11:19:14 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 1'467 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
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
Malware Config
C2 Extraction:
45.180.174.39
Unpacked files
SH256 hash:
e987e066b6b1ca5c3698a367d405b671a7f33e388289cb6b191faf4796478596
MD5 hash:
8b3814abb5e9cd9fb5da34bc71a4afc2
SHA1 hash:
8005c030dd9d0c1f146d18c4597f0a0f55e16577
SH256 hash:
26a0913c70fe7c2852dda7fb0d9dd44b2575735b124fc2c3f47e36d51c7f9250
MD5 hash:
a5d93b3b2d5e690db84d4ba524acc305
SHA1 hash:
f3e73d64ab4de13a6be4e2261df7cda93af3ef8f
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: | 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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