MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1751a576879ffed0fed1eee73ab099833ef0c019c6307cab9919275927ba6b6. 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: 10


Intelligence 10 IOCs 7 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1751a576879ffed0fed1eee73ab099833ef0c019c6307cab9919275927ba6b6
SHA3-384 hash: a1950a2446b8b753a246b2fcb653acd57ef13d04bf37aa1013e5d7329eb85b21e5ba969d98c78c8e6d6d2356d90204ad
SHA1 hash: 1befd6962066db0f6a1ebbddd6c0b6b6391ef6f7
MD5 hash: e211576cbdb1d92070862efe33703447
humanhash: skylark-hawaii-twenty-early
File name:E211576CBDB1D92070862EFE33703447.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:965'120 bytes
First seen:2021-08-15 17:51:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 39334fad6fc37ecf56243de5802e190c (1 x RemcosRAT, 1 x Formbook, 1 x OskiStealer)
ssdeep 12288:lq1zaytHkdB6KK/2v7YNZIeT76kASvukn/rML9zpteqDaGul9:lqVayP/2TYNhaliD4eqDaGM
Threatray 372 similar samples on MalwareBazaar
TLSH T197257D32B651783BC2534F7AAC5BB765D929BA002A5C29856BFD1C4C4E3E7423C313A7
dhash icon 36f0390284e2da70 (12 x RemcosRAT, 7 x Formbook, 1 x OskiStealer)
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://2.56.59.141/6.jpg

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://2.56.59.141/6.jpg https://threatfox.abuse.ch/ioc/188589/
http://2.56.59.141/1.jpg https://threatfox.abuse.ch/ioc/188590/
http://2.56.59.141/2.jpg https://threatfox.abuse.ch/ioc/188591/
http://2.56.59.141/3.jpg https://threatfox.abuse.ch/ioc/188592/
http://2.56.59.141/4.jpg https://threatfox.abuse.ch/ioc/188593/
http://2.56.59.141/5.jpg https://threatfox.abuse.ch/ioc/188596/
http://2.56.59.141/7.jpg https://threatfox.abuse.ch/ioc/188597/

Intelligence

File Origin
# of uploads :
1
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
E211576CBDB1D92070862EFE33703447.exe
Verdict:
Malicious activity
Analysis date:
2021-08-15 18:04:09 UTC
Tags:
trojan stealer vidar loader
Link:
https://app.any.run/tasks/2660edd4-1b92-4a49-8f2b-c10f0584f09b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/179383/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.22844.10586.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Launching a process
Deleting a recently created file
Reading critical registry keys
Replacing files
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/518d9549-9131-4485-aa53-792bafa5e589
Result
Threat name:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/833192
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 465624 Sample: WaGakF2Npe.exe Startdate: 15/08/2021 Architecture: WINDOWS Score: 96 27 Found malware configuration 2->27 29 Multi AV Scanner detection for submitted file 2->29 31 Yara detected Oski Stealer 2->31 33 2 other signatures 2->33 6 Ykepyrt.exe 13 2->6         started        10 WaGakF2Npe.exe 1 19 2->10         started        13 Ykepyrt.exe 14 2->13         started        process3 dnsIp4 23 192.168.2.1 unknown unknown 6->23 35 Multi AV Scanner detection for dropped file 6->35 37 Writes to foreign memory regions 6->37 39 Allocates memory in foreign processes 6->39 15 mshta.exe 6->15         started        25 cdn.discordapp.com 162.159.133.233, 443, 49708, 49709 CLOUDFLARENETUS United States 10->25 21 C:\Users\Public\Libraries\...\Ykepyrt.exe, PE32 10->21 dropped 41 Creates a thread in another existing process (thread injection) 10->41 17 secinit.exe 10->17         started        19 mobsync.exe 13->19         started        file5 signatures6 process7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1751a576879ffed0fed1eee73ab099833ef0c019c6307cab9919275927ba6b6/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-08-13 07:45:01 UTC
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6f2ruv3iph762d7nd3xhhkyjtaz66dabtrrqpsvzsgjhlet3u23a._file
Verdict:
malicious
Similar samples:
75b6c107ad6001f2588229fbfdb96dc998fe9f3e44f8df69c98096aceea9aa73
OskiStealer
89e906e65ee2d7fac614e5e6f7383a4fd1846ef07007d06797714b7dfbb3e358
OskiStealer
8d076437949873b971f9534e630ebe26a8437f50786c430eaeb46c71d53a88e5
OskiStealer
9a8c41228b0c201d956ec0c6612e978438c403759d6e1fa0b33e63c3375e3c56
OskiStealer
c75eff07a3519dee7ab981166c1b6ff851d1e826e3ef5f0e36250b5983e3095c
OskiStealer
f2ca2d29d66a7ebdd2084d59ed559d0c2ff1a0d3d8ec99b93cf9a376708a3663
OskiStealer
ffe17f71c718c4e0aaa10a1154e503ffdcf5382207795aca69009aaf3fea28f4
OskiStealer
+ 362 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Link:
https://tria.ge/reports/210815-r4lyzfhkxx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Unpacked files
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/baf6fb0f-a86b-4aea-a8ed-acaf7953277b/
SH256 hash:
f1751a576879ffed0fed1eee73ab099833ef0c019c6307cab9919275927ba6b6
MD5 hash:
e211576cbdb1d92070862efe33703447
SHA1 hash:
1befd6962066db0f6a1ebbddd6c0b6b6391ef6f7
Link:
https://www.unpac.me/results/baf6fb0f-a86b-4aea-a8ed-acaf7953277b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f1751a576879/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1751a576879ffed0fed1eee73ab099833ef0c019c6307cab9919275927ba6b6

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
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
Rule name:win_oski_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/179383/

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