MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 12ca573395abe2197dd8e264d780b988830337b1ba66723c2ced6a0ce51993ce. 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: | 12ca573395abe2197dd8e264d780b988830337b1ba66723c2ced6a0ce51993ce |
|---|---|
| SHA3-384 hash: | 9b1e942cce1cca5796f66d7bd8490cab6d72ff5f04056bd548798baa9c1c3fa75341b23974cadce701d53a646eca3e4d |
| SHA1 hash: | a3c591f17077af53b6cc7ea0e935354ec7acd2b6 |
| MD5 hash: | 810a82f75517c167b50617cd983ba22a |
| humanhash: | lima-finch-mountain-apart |
| File name: | 810a82f75517c167b50617cd983ba22a |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 375'808 bytes |
| First seen: | 2021-10-26 13:11:46 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 6144:zsXZI3stD/X5mA0Eh4URliiBbLI220HwwUL1sfMwmCQeP2gf0cd9bl97o3Y3DpM3:A6s9oehEybLIiw1hsUEhugRnD3DpM3 |
| TLSH | T1A284129447FD5630DAF90BBEB098A8496ABA51A82901FB2D0E00F1B97D37743C147B5F |
| Reporter |  zbetcheckin |
| Tags: | 32 exe OskiStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
168
Origin country :
n/a
Vendor Threat Intelligence
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:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
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 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
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:
2021-10-26 13:12:06 UTC
AV detection:
16 of 27 (59.26%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
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 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:
stanelectronics.xyz
Unpacked files
SH256 hash:
056ef41620f0824a5d2044980d5625b82751aa3b2d55a5b0062a531d7354e7ad
MD5 hash:
6f56dd9275d884132b1cf9e7302f98be
SHA1 hash:
f1e3bb3176ad08a9a14685df3425438b30e8dfca
SH256 hash:
245306c0b82d254688e24dc5e7310195e54577b10889f1eff11bc250295e79a8
MD5 hash:
66c61554814e813794855cb767681304
SHA1 hash:
bf33fa9424894ec356676dc04bc4569cfb313d80
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
a5c2baaf64d2f20666f5d02876e9f5b59d8ec5c538ee82f1711d9d0db3f189e0
MD5 hash:
8ecd3b39d0778503439b9e9dd0475b2d
SHA1 hash:
249f0f11920286ba191592bfaf13a2c0d7cc7ca6
SH256 hash:
12ca573395abe2197dd8e264d780b988830337b1ba66723c2ced6a0ce51993ce
MD5 hash:
810a82f75517c167b50617cd983ba22a
SHA1 hash:
a3c591f17077af53b6cc7ea0e935354ec7acd2b6
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.
Web download
Delivery method
Distributed via web download
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