MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b. 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 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b
SHA3-384 hash: 598a14d41fd6c0b77b674168eeefc2c73781e16dec3a229d1ffff2502b5531e675efe0378c58c9c4efc55abac100af1c
SHA1 hash: 9782fc1ad43c98ea6be682bd65f9983f588ce3c0
MD5 hash: c367606306486d9b78eeb17c108ee4fc
humanhash: september-crazy-uniform-missouri
File name:c367606306486d9b78eeb17c108ee4fc.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:486'400 bytes
First seen:2022-02-03 08:55:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:JVO7JQYkv/EVK8WSDkAYvOtPE+kurmCwGc:JVOVQJv/EVKDSDcfOqCD
Threatray 3'693 similar samples on MalwareBazaar
TLSH T17EA49DB4A1A78590F10B8A74257CFDA502B234E3E9C90D3927393645CFEEF943E8564E
Reporter abuse_ch
Tags:exe OskiStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c367606306486d9b78eeb17c108ee4fc.exe
Verdict:
Malicious activity
Analysis date:
2022-02-03 09:08:00 UTC
Tags:
trojan stealer vidar loader
Link:
https://app.any.run/tasks/d57cc932-e0cf-4b82-9ce1-25bc9fad34a9

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/231824/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Reading critical registry keys
Delayed writing of the file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Stealing user critical data
Launching a tool to kill processes
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/61fb98b7a0f6a794b3366c08/reports/8e9a7835-33d4-4f74-99b2-0d1747052809/overview
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/40673d90-3308-40b1-ad49-6cec50f901c6
Result
Threat name:
Oski Stealer Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/933147
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-03 01:18:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
469bb0b552b4d40a4f7d1334f69c121826b2a0ff3eeab0b69b97f836818d97a2
OskiStealer
9b4952dc2d34aba59e87c0c185358a57acb0fd071d63fc2af6c6c9ae8952be37
OskiStealer
aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305
OskiStealer
becbc1b05321dc51b2e50fcbb6c2be8da96c2648bebc11638701a69f22b226d8
OskiStealer
d9a8ff42d8a53247338920a5d7c8f2ecbb512d9e81334e68d1c54a6cc46c5351
OskiStealer
e2d736aa3991b4b9d09ec99401ea45bea6cc317f3470e2a71105f1aac46d1ff8
OskiStealer
f7a423c9fd6cf87566b34d2dab352a81821ba3737864cc1abec2593429965300
OskiStealer
+ 3'683 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/220203-kv3gnsehe7/
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:
modexdeals.ir
Unpacked files
SH256 hash:
0deb2743990b60931b1e53860f7da5c569716ff1e33a74231fa8385012d112ba
MD5 hash:
919164a94f9234c991134a1e749ed52b
SHA1 hash:
e116fee480efabf5d9184764d7422557b0dbaed4
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/28fd23d2-1cc2-427f-8f57-8b9dc8bdb7ef/
Parent samples :
aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305
0cf47ee37fd8ac01c75b6ea18f80d2647df7dee7235e5e22891bc8b3e8587a28
ab65d6eee8d3fef8fa8709054023cc39a0ab2b532245f61681f3e318908e6357
f7a423c9fd6cf87566b34d2dab352a81821ba3737864cc1abec2593429965300
e2d736aa3991b4b9d09ec99401ea45bea6cc317f3470e2a71105f1aac46d1ff8
f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b
SH256 hash:
6f1b89bc3013177c101fe4448340c48c0dd08d19017a798bd11c2d0f76be1fbc
MD5 hash:
60a604887b3616e3ed86d81fab0a9ebb
SHA1 hash:
8db84f5f4c569c86c69aff464b2ffc4ce3dafa20
Link:
https://www.unpac.me/results/28fd23d2-1cc2-427f-8f57-8b9dc8bdb7ef/
SH256 hash:
14131add89d271b97b9522e598d2d04228391dca67306307303bf664ef86b6d7
MD5 hash:
f4926cafce7078f039aab806772c0c2e
SHA1 hash:
38cefe9024dda1cb5b1e9e3a1c7328f64f2feb43
Link:
https://www.unpac.me/results/28fd23d2-1cc2-427f-8f57-8b9dc8bdb7ef/
SH256 hash:
f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b
MD5 hash:
c367606306486d9b78eeb17c108ee4fc
SHA1 hash:
9782fc1ad43c98ea6be682bd65f9983f588ce3c0
Link:
https://www.unpac.me/results/28fd23d2-1cc2-427f-8f57-8b9dc8bdb7ef/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f4112faf7476/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b

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.

Web download

OskiStealer

Executable exe f4112faf7476b5132e97e1822ab118742924603900d01370ce0c66dfcbc1e41b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1970259/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/231824/

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