MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1542d5aa55d35e7da824209239affc1abc90777b93c7bdb256eb736639bfd38d. 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 YARA 3 File information Comments

SHA256 hash: 1542d5aa55d35e7da824209239affc1abc90777b93c7bdb256eb736639bfd38d
SHA3-384 hash: 8124a8431d4ee8eb01277e4284e2ad8d8a1ba73589dc6842df1951ee770414b579f8716a634e5cb75a86082545606a62
SHA1 hash: 77076a158907890d77cdc2f32f3bdd0ddfbf7cd6
MD5 hash: 9fa82e3cc59d17f17340fc6ad6e2de30
humanhash: mississippi-foxtrot-lithium-kentucky
File name:Picture_356.exe
Download: download sample
Signature OskiStealer
File size:1'176'880 bytes
First seen:2021-09-07 06:24:20 UTC
Last seen:2021-09-07 06:28:30 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 24576:4MXD6D+Xq6Hy1Tl99QQdt7eq7XrN7xoeizky+Vr8:zXD6D+6Z1Tri4r7o9aVo
Threatray 747 similar samples on MalwareBazaar
TLSH T118450183B6C44385DBA99A71D2FF0C2103E2ED575B75A25E3E48761508F3372AA13B4E
dhash icon 009ac1cd91810181 (1 x OskiStealer)
Reporter JAMESWT_WT
Tags:bitbucket.org exe OskiStealer

Intelligence


File Origin
# of uploads :
3
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Picture_356.exe
Verdict:
Malicious activity
Analysis date:
2021-09-07 07:05:01 UTC
Tags:
trojan stealer vidar

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Connection attempt
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2020-08-18 18:57:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
23 of 43 (53.49%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:oski infostealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Oski
Malware Config
C2 Extraction:
176.113.82.180
Unpacked files
SH256 hash:
46e719094fffcc31fc04026dbb6e0a8b41f24f003c9076adef7d13a352351154
MD5 hash:
d66a633174288a69c886381ace61bc42
SHA1 hash:
a625103c7a47d30c256d8aa65a80803136e6a474
SH256 hash:
3796a5118cbee90c7f8b10f49395e86d2d594542632b777e69c82cf1845f18c0
MD5 hash:
490f02ff12fdd778cfe81f8bdef75fe4
SHA1 hash:
a61d94edaef581abe8d22c7f402e3ed159d8b283
SH256 hash:
701dd583641f97bbb29080dae38a99da57d126cd0a42a9872793de60aa3547f5
MD5 hash:
0ddbdfcdd3ffc4d885c7e11ac74d08ca
SHA1 hash:
83df894338c402efb6db199cd7da287087cd4768
Detections:
win_oski_g0 win_oski_auto
SH256 hash:
734837177c33399f5dbdb87b3589c2171a094d4913b0e5b32c4a6edb8132ae4b
MD5 hash:
2dd178c70c8889b30f34edcb197846b1
SHA1 hash:
271f1261a2e2d6b07b288dab8ce0311191c00054
SH256 hash:
1542d5aa55d35e7da824209239affc1abc90777b93c7bdb256eb736639bfd38d
MD5 hash:
9fa82e3cc59d17f17340fc6ad6e2de30
SHA1 hash:
77076a158907890d77cdc2f32f3bdd0ddfbf7cd6
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments