MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 07fc79c5c6b4bd6e705b227b25fcaf89629d695939bad84ceba042774f683cac. 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: 9


Intelligence 9 IOCs 7 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 07fc79c5c6b4bd6e705b227b25fcaf89629d695939bad84ceba042774f683cac
SHA3-384 hash: 0a13837f77c30ef531e85d9ae034de64f7cede48a3c1ec5d38fd29e3c2124b04381037227b53999ef392f14c43938339
SHA1 hash: 004b7cdb5df5520d272f43dd592200c6feb8eea1
MD5 hash: 342854a6979907fa3433480c88fa1118
humanhash: undress-mississippi-table-sixteen
File name:MACHINE SPECIFICATION.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:873'984 bytes
First seen:2021-05-25 18:30:36 UTC
Last seen:2021-05-25 19:04:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'494 x Formbook, 12'214 x SnakeKeylogger)
ssdeep 24576:GnF6esLSsA5eoc6SHUZc7Btxqsz7Q1yKpr:e6JLevhYqEk1zr
Threatray 166 similar samples on MalwareBazaar
TLSH F70502A0B350D1ABCC5D09348A03E61016F3BEA9E811D69A7ED77E6E7F733819007667
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://dantsechs.net/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://dantsechs.net/6.jpg https://threatfox.abuse.ch/ioc/59224/
http://dantsechs.net/1.jpg https://threatfox.abuse.ch/ioc/59225/
http://dantsechs.net/2.jpg https://threatfox.abuse.ch/ioc/59226/
http://dantsechs.net/3.jpg https://threatfox.abuse.ch/ioc/59227/
http://dantsechs.net/4.jpg https://threatfox.abuse.ch/ioc/59228/
http://dantsechs.net/5.jpg https://threatfox.abuse.ch/ioc/59229/
http://dantsechs.net/7.jpg https://threatfox.abuse.ch/ioc/59230/

Intelligence

File Origin
# of uploads :
2
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MACHINE SPECIFICATION.exe
Verdict:
Malicious activity
Analysis date:
2021-05-25 20:32:17 UTC
Tags:
trojan stealer vidar loader
Link:
https://app.any.run/tasks/96b302a8-cad3-4cc8-86f4-314aeb76ca0e

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/162121/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792061
Signature
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
Posts data to a JPG file (protocol mismatch)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 424458 Sample: MACHINE SPECIFICATION.exe Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Oski Stealer 2->41 43 5 other signatures 2->43 8 MACHINE SPECIFICATION.exe 3 2->8         started        process3 file4 25 C:\Users\...\MACHINE SPECIFICATION.exe.log, ASCII 8->25 dropped 45 Injects a PE file into a foreign processes 8->45 12 MACHINE SPECIFICATION.exe 193 8->12         started        17 MACHINE SPECIFICATION.exe 8->17         started        signatures5 process6 dnsIp7 35 dantsechs.net 67.220.184.146, 49719, 80 24SHELLSUS United States 12->35 27 C:\ProgramData\vcruntime140.dll, PE32 12->27 dropped 29 C:\ProgramData\sqlite3.dll, PE32 12->29 dropped 31 C:\ProgramData\softokn3.dll, PE32 12->31 dropped 33 4 other files (none is malicious) 12->33 dropped 47 Tries to harvest and steal browser information (history, passwords, etc) 12->47 49 Tries to steal Crypto Currency Wallets 12->49 19 cmd.exe 1 12->19         started        file8 signatures9 process10 process11 21 taskkill.exe 1 19->21         started        23 conhost.exe 19->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/07fc79c5c6b4bd6e705b227b25fcaf89629d695939bad84ceba042774f683cac/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2021-05-25 03:25:33 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=a76htrogws6w44c3ej5sl7fprfrj22kzhg5nqthlubbhot3ihswa._file
Verdict:
malicious
Similar samples:
0768e83e8d36f21ea90867dcf3935ee48795daf2e4a0017979e752b865c95d9e
OskiStealer
1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332
OskiStealer
37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c
OskiStealer
604e8bce3d31f5e04fe9622cedeb0696a69b9cb7f262a9bb33009ede20df100a
OskiStealer
916bd03b40de6bfa498311e3a70d3e98c50e8255fd413d446daab77951224856
OskiStealer
9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27
OskiStealer
bbd4dd21dde67a96ac02aa9795ce662fa36d4edb90d13f2ffbdeee0d4aea5050
OskiStealer
cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28
OskiStealer
db127ccf5ea69c0bc3888efe5ae2a532c5f5590a2f589f049139fcf63f5e8062
OskiStealer
db23d6f5e2123cde47f4e3178bf18063aa3270d13499991200c9074a837eff07
OskiStealer
+ 156 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Link:
https://tria.ge/reports/210525-4wkwhzabvn/
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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:
http://dantsechs.net
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/07fc79c5c6b4bd6e705b227b25fcaf89629d695939bad84ceba042774f683cac

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/162121/

Comments