MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332. 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: 8


Intelligence 8 IOCs 7 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332
SHA3-384 hash: 6fd54facee1cc2c92e68c0cb0918a3730a9e6357d921deab85f4c529c65728beb6d24e304e635293613c11b5dc524ff6
SHA1 hash: 36494e8db1b039478bd577ec585954a100beba1b
MD5 hash: a5b17ac04b70cc12107229c7e3a92842
humanhash: spaghetti-enemy-india-bacon
File name:a5b17ac04b70cc12107229c7e3a92842.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:228'664 bytes
First seen:2021-05-03 07:25:36 UTC
Last seen:2021-05-03 11:06:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:D6ANumyFMDlHO5tfzoeAWRfS8ypYAxBWA3VcuVdxQY1/QdseKXxIhj9bPnSY:D6AQkItfUeAIQHuA36cd9/S4Il9bPnS
Threatray 1'098 similar samples on MalwareBazaar
TLSH B92401400AD8D305C9740B7A8AF5C134BF719F00EC21EAE75C5FF29647367C2A598EAA
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://31.210.21.71/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://31.210.21.71/6.jpg https://threatfox.abuse.ch/ioc/28143/
http://31.210.21.71/1.jpg https://threatfox.abuse.ch/ioc/28144/
http://31.210.21.71/2.jpg https://threatfox.abuse.ch/ioc/28145/
http://31.210.21.71/3.jpg https://threatfox.abuse.ch/ioc/28146/
http://31.210.21.71/4.jpg https://threatfox.abuse.ch/ioc/28147/
http://31.210.21.71/5.jpg https://threatfox.abuse.ch/ioc/28148/
http://31.210.21.71/7.jpg https://threatfox.abuse.ch/ioc/28149/

Intelligence

File Origin
# of uploads :
4
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/148285/
Detection(s):
SecuriteInfo.com.ArtemisA5B17AC04B70.21871.28029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
DNS request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
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.
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/707287
Signature
Creates an undocumented autostart registry key
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 dropped file
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 402564 Sample: it54qPllN4.exe Startdate: 03/05/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 4 other signatures 2->52 8 it54qPllN4.exe 15 8 2->8         started        process3 dnsIp4 40 launcher.worldofwarcraft.com 137.221.106.103, 49735, 80 BLIZZARDEU United Kingdom 8->40 42 192.168.2.1 unknown unknown 8->42 24 C:\Users\user\AppData\Roaming\...\notpad.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\...\it54qPllN4.exe, PE32 8->26 dropped 28 C:\Users\...\it54qPllN4.exe:Zone.Identifier, ASCII 8->28 dropped 30 C:\Users\user\AppData\...\it54qPllN4.exe.log, ASCII 8->30 dropped 54 Creates an undocumented autostart registry key 8->54 56 Writes to foreign memory regions 8->56 58 Injects a PE file into a foreign processes 8->58 13 it54qPllN4.exe 193 8->13         started        file5 signatures6 process7 dnsIp8 44 31.210.21.71, 49747, 80 PLUSSERVER-ASN1DE Netherlands 13->44 32 C:\ProgramData\vcruntime140.dll, PE32 13->32 dropped 34 C:\ProgramData\sqlite3.dll, PE32 13->34 dropped 36 C:\ProgramData\softokn3.dll, PE32 13->36 dropped 38 4 other files (none is malicious) 13->38 dropped 60 Multi AV Scanner detection for dropped file 13->60 62 Tries to harvest and steal browser information (history, passwords, etc) 13->62 64 Tries to steal Crypto Currency Wallets 13->64 18 cmd.exe 1 13->18         started        file9 signatures10 process11 process12 20 taskkill.exe 1 18->20         started        22 conhost.exe 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-03 07:12:16 UTC
AV detection:
15 of 47 (31.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dbqdi4jq62f2bueeouebnsqpyuzlqzd5rhrw75j4ank6oosg2mza._file
Verdict:
malicious
Similar samples:
37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c
OskiStealer
3aeccf51ec935646a4987a1683d5dd8a251d171d326041282759753e371dff4f
OskiStealer
604e8bce3d31f5e04fe9622cedeb0696a69b9cb7f262a9bb33009ede20df100a
OskiStealer
9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27
OskiStealer
9db40f7f060e08b2891dc881c6f6d1ea165b56747b4302fd96e53d8bd194d8d5
OskiStealer
a5c9be9bcb214e69a39285a634f95e43fdf1ad10536bcc9bce84be7edb48cb31
OskiStealer
b2454961c84e927b086719e0bae8016bee823e17402fb0feca8bda4e63ff009c
OskiStealer
cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28
OskiStealer
db127ccf5ea69c0bc3888efe5ae2a532c5f5590a2f589f049139fcf63f5e8062
OskiStealer
fdd6b649413776c157e7029b545d9e47a62b9decd6b2a11ca1708fd4363945a8
OskiStealer
+ 1'088 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/210503-t29xkzvnes/
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
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Unpacked files
SH256 hash:
32f37430bc3733f6eadcdbbd5afe2acd21a2d65c3671dcf09b2adb1d62214549
MD5 hash:
30312fb17a5f0a3c958a5bf014b96187
SHA1 hash:
81ad1d2b03121e9d034756018433c165d0712737
Link:
https://www.unpac.me/results/0389b801-c5ed-4975-bf22-59600b3ebcf0/
SH256 hash:
3d76ba0905f51a2f56056e35952bc8bb1cca5a4bae562e25dee9ffcc2ec394b0
MD5 hash:
d3aa949854c553df0461f0a3b7e90320
SHA1 hash:
488ca394e13408d90607b1f74e664ddc02474bed
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/0389b801-c5ed-4975-bf22-59600b3ebcf0/
SH256 hash:
0837c12d5b51f58c87f562f0f8d65271a1610ca461182991f7bec6e8e4466625
MD5 hash:
e760e5ddcce4e77b0f5d85a1c445ec5c
SHA1 hash:
0889157ab84b037675706d0271eedd52f44f00e3
Link:
https://www.unpac.me/results/0389b801-c5ed-4975-bf22-59600b3ebcf0/
SH256 hash:
1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332
MD5 hash:
a5b17ac04b70cc12107229c7e3a92842
SHA1 hash:
36494e8db1b039478bd577ec585954a100beba1b
Link:
https://www.unpac.me/results/0389b801-c5ed-4975-bf22-59600b3ebcf0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332

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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_KB_CERT_04f131322cc31d92c849fca351d2f141
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

OskiStealer

Executable exe 1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1187769/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/148285/

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