MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8399c97b606bb6613f99006964a47064e402e6489574b85db7a9872f601886b2. 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: | 8399c97b606bb6613f99006964a47064e402e6489574b85db7a9872f601886b2 |
|---|---|
| SHA3-384 hash: | 91e5d1a6d64713e2ba56141f0465334a23e0d3e807c7c7a35fbce021fa72e2182aaead2520df60c44d62fb9bfcc4f518 |
| SHA1 hash: | 0ea996779357de45e85e2e12c3d0ac31cf0fd107 |
| MD5 hash: | 2962e54654777bac6bf57c28f21a5c9a |
| humanhash: | lactose-bulldog-four-wyoming |
| File name: | IV3090065437.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 232'958 bytes |
| First seen: | 2022-03-22 06:03:18 UTC |
| Last seen: | 2022-03-22 07:52:14 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiKCsaHV5lRtEJUH4uBjBO3quTpBA4gJawPR:OCsUX3ty/quFQdZ |
| TLSH | T1233412A4F0D0CE2FC99231751A7B5AB5F3BF81C220A5854BE35A2FAF39D61454409BF8 |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| 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://tel4s6.xyz/6.jpg | https://threatfox.abuse.ch/ioc/437529/ |
| http://tel4s6.xyz/1.jpg | https://threatfox.abuse.ch/ioc/437530/ |
| http://tel4s6.xyz/2.jpg | https://threatfox.abuse.ch/ioc/437531/ |
| http://tel4s6.xyz/3.jpg | https://threatfox.abuse.ch/ioc/437532/ |
| http://tel4s6.xyz/4.jpg | https://threatfox.abuse.ch/ioc/437533/ |
| http://tel4s6.xyz/5.jpg | https://threatfox.abuse.ch/ioc/437534/ |
| http://tel4s6.xyz/7.jpg | https://threatfox.abuse.ch/ioc/437535/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
246
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
Reading critical registry keys
Delayed writing of the file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Stealing user critical data
Launching a tool to kill processes
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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 dropped file
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 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.NSISInject
Status:
Malicious
First seen:
2022-03-22 06:04:14 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 27 (70.37%)
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
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:
tel4s6.xyz
Unpacked files
SH256 hash:
6f722ab92dfe86e7bc3c9191e2a596c015a64226bc353aecc7090941d38ab32a
MD5 hash:
4c174f913a3f3dbad46837b8d4cbed6b
SHA1 hash:
1e9c55dd1af8e193df6253ef57677e8e91215046
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
26f2420dabd2a1016204ab2546c1d16e52c963500cf136044f2a656db04746e8
MD5 hash:
9d208601d38becddb014f55a4e0cb53b
SHA1 hash:
3a2f261e0c45c4bab73b25edbcedc8034a806c23
SH256 hash:
8399c97b606bb6613f99006964a47064e402e6489574b85db7a9872f601886b2
MD5 hash:
2962e54654777bac6bf57c28f21a5c9a
SHA1 hash:
0ea996779357de45e85e2e12c3d0ac31cf0fd107
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.28
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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