MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d894f6b5147fcbadc428a161bfc8b7b4b0d040665862eb4c8d1b3624b09cd6fa. 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: 15
| SHA256 hash: | d894f6b5147fcbadc428a161bfc8b7b4b0d040665862eb4c8d1b3624b09cd6fa |
|---|---|
| SHA3-384 hash: | 71980929eb512e3fba98f5e83127854456b49bdeb0cea3476221ff14d77438f923b3c495117c0df4775b5e60bb4a7024 |
| SHA1 hash: | a6fc64e75dbbe40b7beaeea3f00f7db9bcc95c0a |
| MD5 hash: | c20f1a1b65385be4a6cc1924f0fe7334 |
| humanhash: | alanine-hamper-tennessee-mars |
| File name: | c20f1a1b65385be4a6cc1924f0fe7334.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 204'800 bytes |
| First seen: | 2023-05-05 04:40:43 UTC |
| Last seen: | 2023-05-13 22:48:07 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7bb9d345a5fec4fbbf5100d6a3ffbb8c (88 x ArkeiStealer, 85 x OskiStealer, 1 x Reconyc) |
| ssdeep | 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fI91Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNo1Ljo3c |
| Threatray | 821 similar samples on MalwareBazaar |
| TLSH | T10F146D30B690C035E86310BCDDEE86BEB96C7A301F5950C3A3D45A662F712F27A71657 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  abuse_ch |
| Tags: | exe OskiStealer |
Intelligence
File Origin
# of uploads :
2
# of downloads :
293
Origin country :
NLVendor Threat Intelligence
Malware family:
oski
ID:
1
File name:
Microsoft_Office_365.rar
Verdict:
Malicious activity
Analysis date:
2023-05-01 17:37:46 UTC
Tags:
oski stealer vidar trojan loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
greyware vidar
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Stealer, Vidar
Detection:
malicious
Classification:
troj.spyw
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.AveMaria
Status:
Malicious
First seen:
2023-05-01 01:14:42 UTC
File Type:
PE (Exe)
AV detection:
30 of 37 (81.08%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 811 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski infostealer spyware stealer
Behaviour
Modifies system certificate store
Suspicious use of WriteProcessMemory
Program crash
Reads user/profile data of web browsers
Oski
Malware Config
C2 Extraction:
worthknowing.us
Unpacked files
SH256 hash:
d894f6b5147fcbadc428a161bfc8b7b4b0d040665862eb4c8d1b3624b09cd6fa
MD5 hash:
c20f1a1b65385be4a6cc1924f0fe7334
SHA1 hash:
a6fc64e75dbbe40b7beaeea3f00f7db9bcc95c0a
Detections:
OskiStealer
win_oski_auto
win_oski_g0
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: | MALWARE_Win_Vidar |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Vidar / ArkeiStealer |
| Rule name: | Windows_Trojan_OskiStealer_a158b1e3 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_oski_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.oski. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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