MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 12bf1af82800824feaa1e3322543c477bda5fb78adb178bda9fc3439f78c22a4. 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: | 12bf1af82800824feaa1e3322543c477bda5fb78adb178bda9fc3439f78c22a4 |
|---|---|
| SHA3-384 hash: | 7e67e00db86e67aae147067a0b54be42356eae54a52ed28bbaa32613668a5391649936d1809113c5cfcf6e2b9eed3146 |
| SHA1 hash: | 0a79f8c5bd035b063f6ec1405b7e536dd0154673 |
| MD5 hash: | 1fa31ec68a8c7b2261d965191f863c9b |
| humanhash: | oxygen-freddie-fanta-orange |
| File name: | 1FA31EC68A8C7B2261D965191F863C9B.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 204'800 bytes |
| First seen: | 2021-05-23 15:55:38 UTC |
| Last seen: | 2021-05-23 16:00:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7bb9d345a5fec4fbbf5100d6a3ffbb8c (88 x ArkeiStealer, 85 x OskiStealer, 1 x Reconyc) |
| ssdeep | 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIV1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNE1Ljo3c |
| Threatray | 157 similar samples on MalwareBazaar |
| TLSH | 9C146D30B690C035E8A310BCDDEE86BEB96C7A301F5950C3A3D45A662F712F27A71657 |
| 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://gimermarkett.de/6.jpg | https://threatfox.abuse.ch/ioc/57717/ |
| http://gimermarkett.de/1.jpg | https://threatfox.abuse.ch/ioc/57718/ |
| http://gimermarkett.de/2.jpg | https://threatfox.abuse.ch/ioc/57719/ |
| http://gimermarkett.de/3.jpg | https://threatfox.abuse.ch/ioc/57720/ |
| http://gimermarkett.de/4.jpg | https://threatfox.abuse.ch/ioc/57721/ |
| http://gimermarkett.de/5.jpg | https://threatfox.abuse.ch/ioc/57722/ |
| http://gimermarkett.de/7.jpg | https://threatfox.abuse.ch/ioc/57723/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Oski_Cracked_gimermarkett.de.exe
Verdict:
Malicious activity
Analysis date:
2021-05-20 14:47:58 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
DNS request
Connection attempt
Creating a file
Launching the default Windows debugger (dwwin.exe)
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
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.AveMaria
Status:
Malicious
First seen:
2021-05-20 21:08:00 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 147 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
NTFS ADS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Reads user/profile data of web browsers
Oski
Malware Config
C2 Extraction:
gimermarkett.de
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: | MALWARE_Win_Vidar |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Vidar / ArkeiStealer |
| Rule name: | Vidar |
|---|---|
| Author: | kevoreilly |
| Description: | Vidar Payload |
| Rule name: | win_oski_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.035] Anti-Behavioral Analysis::Process Environment Block BeingDebugged
1) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
2) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
3) [C0019] Data Micro-objective::Check String
4) [C0060] Data Micro-objective::Compression Library
5) [C0026.001] Data Micro-objective::Base64::Encode Data
6) [C0026.002] Data Micro-objective::XOR::Encode Data
8) [C0049] File System Micro-objective::Get File Attributes
9) [C0051] File System Micro-objective::Read File
10) [C0052] File System Micro-objective::Writes File
11) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
12) [C0040] Process Micro-objective::Allocate Thread Local Storage
13) [C0041] Process Micro-objective::Set Thread Local Storage Value
14) [C0018] Process Micro-objective::Terminate Process