MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f. 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: 12


Intelligence 12 IOCs 7 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f
SHA3-384 hash: 3093d8d67097025f5daa2eeba083393399d1b4efc253435da763622ba2b40de9bae011c0b84696544a26203f0d0776af
SHA1 hash: 21f603ab1d5b62c1ee34369d462616388806dc1d
MD5 hash: a6c1d6c7f027edd65fc284f1189dd5a6
humanhash: stream-triple-bulldog-golf
File name:a6c1d6c7f027edd65fc284f1189dd5a6.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:1'286'144 bytes
First seen:2021-12-09 08:41:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:WIKjy/SYCpJ042WrhUAhIwpvYIQ35PhGtfl8noPC++wUX:kjASRN2Wrhlrhzemnj
Threatray 4'191 similar samples on MalwareBazaar
TLSH T16655231B2CE4B56FE56D56B0C363C0918F7CF0032D55F2B6689356BF673828ADA06A13
File icon (PE):PE icon
dhash icon 9fa7c7a3a393d3c2 (3 x AgentTesla, 1 x OskiStealer, 1 x Formbook)
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://hp-tv.tk/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://hp-tv.tk/6.jpg https://threatfox.abuse.ch/ioc/270269/
http://hp-tv.tk/1.jpg https://threatfox.abuse.ch/ioc/270270/
http://hp-tv.tk/2.jpg https://threatfox.abuse.ch/ioc/270271/
http://hp-tv.tk/3.jpg https://threatfox.abuse.ch/ioc/270272/
http://hp-tv.tk/4.jpg https://threatfox.abuse.ch/ioc/270273/
http://hp-tv.tk/5.jpg https://threatfox.abuse.ch/ioc/270274/
http://hp-tv.tk/7.jpg https://threatfox.abuse.ch/ioc/270275/

Intelligence

File Origin
# of uploads :
1
# of downloads :
171
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a6c1d6c7f027edd65fc284f1189dd5a6.exe
Verdict:
Malicious activity
Analysis date:
2021-12-09 12:11:00 UTC
Tags:
trojan stealer vidar loader
Link:
https://app.any.run/tasks/2010c225-b7b7-414e-a7aa-09aa0133fc26

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/212741/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b1c15efa72c81b5b13204d/reports/3987cf9c-1e3c-4a2f-b7c8-e8d2398e7030/overview
Result
Verdict:
UNKNOWN
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/b6e98843-b966-4f63-9903-9d6357c77e80
Result
Threat name:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/904471
Signature
.NET source code contains potential unpacker
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
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: 536949 Sample: ii8ASovNsX.exe Startdate: 09/12/2021 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Oski Stealer 2->39 41 8 other signatures 2->41 8 ii8ASovNsX.exe 3 2->8         started        process3 file4 23 C:\Users\user\AppData\...\ii8ASovNsX.exe.log, ASCII 8->23 dropped 43 Injects a PE file into a foreign processes 8->43 12 ii8ASovNsX.exe 196 8->12         started        signatures5 process6 dnsIp7 33 hp-tv.tk 104.21.3.183, 49726, 80 CLOUDFLARENETUS United States 12->33 25 C:\ProgramData\vcruntime140.dll, PE32 12->25 dropped 27 C:\ProgramData\sqlite3.dll, PE32 12->27 dropped 29 C:\ProgramData\softokn3.dll, PE32 12->29 dropped 31 4 other files (none is malicious) 12->31 dropped 45 Tries to harvest and steal browser information (history, passwords, etc) 12->45 47 Tries to steal Crypto Currency Wallets 12->47 17 cmd.exe 1 12->17         started        file8 signatures9 process10 process11 19 taskkill.exe 1 17->19         started        21 conhost.exe 17->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-09 08:42:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=s3mpo6iehb6fke7je4z3a4kjq763i5wwgmgarrkajadlmdzcv5xq._file
Verdict:
malicious
Similar samples:
192f884438809d6fb01ae0c89c4ccd1fdae62d429e78bdbcc4ff4d28a54049af
OskiStealer
66a1b49f893976a60ca25813345ea54a5582acf7a5a0821c03cc45bcfc89b5c5
OskiStealer
6b869d8825516d0b977d48043d1d56d233de7b128074b068566dc33e0ff9fdb7
OskiStealer
b70f4075c4ce52960faacb101aac17a9cd734cbec86b6a9d63944e900420bde1
OskiStealer
c17243e46ff224631e589c55642c3666e5c560715841e8b8ebdd511cb70da8dd
OskiStealer
e447edf7c703f03c3644f4d8b896974b7bfa59e7bc4036af5a800c7135dd09b0
OskiStealer
+ 4'181 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/211209-kl1xgsbbg9/
Behaviour
Checks processor information in registry
Kills process with taskkill
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
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
hp-tv.tk
Unpacked files
SH256 hash:
ae3b4f4a4fcd7aa5a98e6b1e4db50a7634eff49999f1295a20f8a02e35cc7454
MD5 hash:
40d94445fcad8f9dff4e694fcc1cc6d2
SHA1 hash:
f66e23627bad1dbb10bfa593e647411c6e398ba9
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/49be6c69-a3d8-4a91-9645-44e124ba23e3/
Parent samples :
96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f
692f3c6667e00facad6f7f400d646d5fe7db1407ba798a472671ebc51e881085
5e90017c211f7f6fb00a452e7cc887b8da779dc03314c004ef609d37a7dcc8ce
662cd105cb4bb0060036ea229c5a391a932ba4a9fbb5cb6020ba027026085058
SH256 hash:
9cd82dba6c55d901ac7d7007b7a04a30146ad7c297400d44f9d96b90c5ca25d4
MD5 hash:
d9477c36da677507cd33c6eef325d694
SHA1 hash:
330dc88b5041ca9edf57542f5a30c37eef6f11b1
Link:
https://www.unpac.me/results/49be6c69-a3d8-4a91-9645-44e124ba23e3/
SH256 hash:
5bd54d9ed4bcb868efc5931d78f4c47c3519e6060dfe0c8029deb54039d865e1
MD5 hash:
278218ea949df4ae591e5f0d56392a36
SHA1 hash:
27a9cb7831d47cfa2496dbe7d2972bdd5b11bf17
Link:
https://www.unpac.me/results/49be6c69-a3d8-4a91-9645-44e124ba23e3/
SH256 hash:
96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f
MD5 hash:
a6c1d6c7f027edd65fc284f1189dd5a6
SHA1 hash:
21f603ab1d5b62c1ee34369d462616388806dc1d
Link:
https://www.unpac.me/results/49be6c69-a3d8-4a91-9645-44e124ba23e3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/96d8f7790438/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/96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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.

Web download

OskiStealer

Executable exe 96d8f77904387c5513e92733b0714987fdb476d6330c08c5404806b60f22af6f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1862603/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/212741/

Comments