MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 9b4952dc2d34aba59e87c0c185358a57acb0fd071d63fc2af6c6c9ae8952be37. 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
ArkeiStealer
Vendor detections: 12
| SHA256 hash: | 9b4952dc2d34aba59e87c0c185358a57acb0fd071d63fc2af6c6c9ae8952be37 |
|---|---|
| SHA3-384 hash: | 579e00860cf48492bbcfa0b506eb1ca87f039f7573a280946dc875c7d33c5892a64b2e6aa5709f09f8d1c1497c07af93 |
| SHA1 hash: | e944eec3c0ba8b7230501a1cfb2fbf78bb0a0521 |
| MD5 hash: | dae2f6f19797a55c1827a8c8a9db8250 |
| humanhash: | football-lake-foxtrot-angel |
| File name: | RFQ-MA-INV0009-2201-B.exe |
| Download: | download sample |
| Signature | ArkeiStealer |
| File size: | 578'909 bytes |
| First seen: | 2022-01-13 10:55:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla) |
| ssdeep | 6144:rwNE81PVbscmXHpX2jNrJIa+7P7l1/xjUyKA42AXvk3FGZ:o1PxqHB8r+aezjiA42f3Q |
| Threatray | 3'988 similar samples on MalwareBazaar |
| TLSH | T12BC4C0697908D8CEC8205831C89DECFA61F29E7FD444494375E87F1E4FB6AC6D92B086 |
| File icon (PE): |  |
| dhash icon | 00c8e4f0f8fcf4f6 (1 x ArkeiStealer) |
| Reporter |  GovCERT_CH |
| Tags: | ArkeiStealer exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-MA-INV0009-2201-B.exe
Verdict:
Malicious activity
Analysis date:
2022-01-13 10:57:09 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
Searching for the window
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
Stealing user critical data
Launching a tool to kill processes
Verdict:
Likely Malicious
Threat level:
7.5/10
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
Antivirus detection for URL or domain
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
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.SpyNoon
Status:
Malicious
First seen:
2022-01-13 10:56:10 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 28 (57.14%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 3'978 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
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
Malware Config
C2 Extraction:
archosk.xyz
Unpacked files
SH256 hash:
8c5340df1102473ef9132917ce4f1ba5b68125c2883aa72e95f97dd1c3b59755
MD5 hash:
24c3cac3c283d9b796fb2fb7682f17ad
SHA1 hash:
916a161cec5ed14f6c1940fbd566d35038243ecc
SH256 hash:
e3de9cbf7165c33282879b7726a3bd106d2e3fae68cb600a9f689fe8866a11b5
MD5 hash:
0ca425bab3867f4a2a834aafca86ffd3
SHA1 hash:
0c44ac9a3a7509a65b97ed294154f84453c0fe67
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
9b4952dc2d34aba59e87c0c185358a57acb0fd071d63fc2af6c6c9ae8952be37
MD5 hash:
dae2f6f19797a55c1827a8c8a9db8250
SHA1 hash:
e944eec3c0ba8b7230501a1cfb2fbf78bb0a0521
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
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: | Detects win.oski. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.