MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 95bb38f864cb2a18cc598ce238ef85dc5eae8de91c0f2e58c175460fc8ebe94d. 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: | 95bb38f864cb2a18cc598ce238ef85dc5eae8de91c0f2e58c175460fc8ebe94d |
|---|---|
| SHA3-384 hash: | 65430fcc174ea022a14da5e29d3ebd7992826582364770975e735cd1a908c740e7a37ff94f5412f295fba7d0fb969421 |
| SHA1 hash: | daccc93545a168dcb69dd8b18ab01ca1f4a68cbc |
| MD5 hash: | 288e1e9a0d79b265aaf409a1c39b67dd |
| humanhash: | kitten-lake-washington-lion |
| File name: | Invoice.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 997'888 bytes |
| First seen: | 2022-09-01 08:25:26 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'754 x AgentTesla, 19'660 x Formbook, 12'251 x SnakeKeylogger) |
| ssdeep | 24576:jZ5hSCAlqmCXyvuDdGBGwZcZoyMgvN6QAJXY+mzo3bv:d5hStqmSycYGayMgl6QUlmzM |
| TLSH | T1C125128A9684C3B2F4170F7011A1F325C6BEBE159671C6D96FCFF2EC49A4B029617A07 |
| TrID | 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.5% (.SCR) Windows screen saver (13101/52/3) 9.2% (.EXE) Win64 Executable (generic) (10523/12/4) 5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.9% (.EXE) Win32 Executable (generic) (4505/5/1) |
| 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://v.m-fit.biz/6.jpg | https://threatfox.abuse.ch/ioc/847144/ |
| http://v.m-fit.biz/1.jpg | https://threatfox.abuse.ch/ioc/847145/ |
| http://v.m-fit.biz/2.jpg | https://threatfox.abuse.ch/ioc/847146/ |
| http://v.m-fit.biz/3.jpg | https://threatfox.abuse.ch/ioc/847147/ |
| http://v.m-fit.biz/4.jpg | https://threatfox.abuse.ch/ioc/847148/ |
| http://v.m-fit.biz/5.jpg | https://threatfox.abuse.ch/ioc/847149/ |
| http://v.m-fit.biz/7.jpg | https://threatfox.abuse.ch/ioc/847150/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
vidar
ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-09-01 09:33:45 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
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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 Stealer, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Downloads files with wrong headers with respect to MIME Content-Type
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic
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 Generic Downloader
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-09-01 08:26:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
22 of 26 (84.62%)
Threat level:
5/5
Detection(s):
Malicious file
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
Checks computer location settings
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
v.m-fit.biz
Unpacked files
SH256 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
SH256 hash:
4c8cbef1e86c2cb652bc5c48d23c285e9976ac0297dadb7c2c267088652e5ec1
MD5 hash:
561672086b31e8f943b84b24666cc5d1
SHA1 hash:
c1551e66e72cdfd613d74c7abdd9ec295f2534ca
SH256 hash:
5220374d5c4a3334f77cf9d0e0aa481244ba5bae49d88b84dae77a633d41c103
MD5 hash:
99516a1eb762faab77262c748e92ce08
SHA1 hash:
7f4f30b1e825dc3fafc0c7462cfcb3760a107dcd
SH256 hash:
aab49e9ce2df67bba2eaa8e2e00aecceffde249574f7bc79d2fdc05d99933905
MD5 hash:
cb8b9f2029088926217b004a9850c19e
SHA1 hash:
465d0e45bac86207421d20d9e124870ae98151d9
Detections:
win_oski_g0
win_oski_auto
OskiStealer
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
95bb38f864cb2a18cc598ce238ef85dc5eae8de91c0f2e58c175460fc8ebe94d
MD5 hash:
288e1e9a0d79b265aaf409a1c39b67dd
SHA1 hash:
daccc93545a168dcb69dd8b18ab01ca1f4a68cbc
Malware family:
OskiStealer
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: | 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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