MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fc2aaf5302d37fdc2aa869f90987c9fe0018792e0d43883eac7520fe2b230f73. 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: 12
| SHA256 hash: | fc2aaf5302d37fdc2aa869f90987c9fe0018792e0d43883eac7520fe2b230f73 |
|---|---|
| SHA3-384 hash: | aae7bf81bc0d6499269f5b5fa24d8ef74c4bd55b0e77f442f0e8d8b488c80029d40b32a1123ba8cac0c42a3f24d2bebd |
| SHA1 hash: | 0f0303e778ee095e923b8c43300173b1c84d4a3b |
| MD5 hash: | b02e27535f1805cb8897dde5550af70e |
| humanhash: | hamper-papa-quiet-kitten |
| File name: | InquiryPR# 1031810.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 431'453 bytes |
| First seen: | 2022-01-13 07:31:58 UTC |
| Last seen: | 2022-01-13 14:07:16 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla) |
| ssdeep | 6144:Iwv9qkG0Env0vV1BQFwA0jgNCme89M7AWUh9XCMgRvWMuw7zMX:rgkGrChPvmy7AWUhwXMMu0MX |
| Threatray | 3'991 similar samples on MalwareBazaar |
| TLSH | T12D94E0F2D688C8FEC4AC4D398437865A05B39D2F09D142DE42EEB5BD2C733919A4719B |
| File icon (PE): |  |
| dhash icon | f68b8fb3f3b38aea (1 x OskiStealer, 1 x LgoogLoader) |
| 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://archosk.xyz/6.jpg | https://threatfox.abuse.ch/ioc/294611/ |
| http://archosk.xyz/1.jpg | https://threatfox.abuse.ch/ioc/294612/ |
| http://archosk.xyz/2.jpg | https://threatfox.abuse.ch/ioc/294613/ |
| http://archosk.xyz/3.jpg | https://threatfox.abuse.ch/ioc/294614/ |
| http://archosk.xyz/4.jpg | https://threatfox.abuse.ch/ioc/294615/ |
| http://archosk.xyz/5.jpg | https://threatfox.abuse.ch/ioc/294616/ |
| http://archosk.xyz/7.jpg | https://threatfox.abuse.ch/ioc/294617/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
InquiryPR# 1031810.exe
Verdict:
Malicious activity
Analysis date:
2022-01-13 07:33:38 UTC
Tags:
installer
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 file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Reading critical registry keys
Creating a window
Delayed writing of the file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Stealing user critical data
Launching a tool to kill processes
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control.exe expand.exe overlay packed shell32.dll
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Stealer Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
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
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:
2022-01-13 07:32:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 27 (77.78%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 3'981 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer suricata
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
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Malware Config
C2 Extraction:
archosk.xyz
Unpacked files
SH256 hash:
6991f16584da6a6f5b3ec157bb64984f65585ada3c11c35813045e7ebfb86a5f
MD5 hash:
8550ffc92bf61f1cde7579ef93d40ca0
SHA1 hash:
fd6b59dbd9f1f3292608e1c2253b908759f2172f
SH256 hash:
e3de9cbf7165c33282879b7726a3bd106d2e3fae68cb600a9f689fe8866a11b5
MD5 hash:
0ca425bab3867f4a2a834aafca86ffd3
SHA1 hash:
0c44ac9a3a7509a65b97ed294154f84453c0fe67
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
fc2aaf5302d37fdc2aa869f90987c9fe0018792e0d43883eac7520fe2b230f73
MD5 hash:
b02e27535f1805cb8897dde5550af70e
SHA1 hash:
0f0303e778ee095e923b8c43300173b1c84d4a3b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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