MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff. 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


DeerStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff
SHA3-384 hash: ec32260ce1ffd2b87258d4c7d2c5210505c419fcb8375eb0f3898294db4089ab1116777ef6c9b1223d8a47e412cbc371
SHA1 hash: 0d927189de68f7c2398775063dd91e46a529ae4c
MD5 hash: 1a92e165fed7d1c4e90b2f12cf3c1989
humanhash: ohio-autumn-lima-east
File name:UVSODSAE.msi
Download: download sample
Signature DeerStealer
Create hunting rule
File size:4'005'888 bytes
First seen:2025-12-25 12:24:47 UTC
Last seen:2025-12-25 14:27:36 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 98304:QLTAD0P74JDF2m++OfwrSTPf73hA41ADRkG3BOb25lD7YH:QLU00JDom+lwSz3hNAlkId5p7
Threatray 5 similar samples on MalwareBazaar
TLSH T1AF063380F5CD63AFF236C6328AFCB19A1A797E54C3A49522708F7758473534C99BA431
TrID 88.4% (.MST) Windows SDK Setup Transform script (61000/1/5)
11.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter BlinkzSec
Tags:DeerStealer msi

Intelligence

File Origin
# of uploads :
3
# of downloads :
49
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/80aa05cc-4d56-4bc7-9f0e-051883cef50b/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/46033/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=694d2d3301c7b4a8fe5594e0
Tags:
n/a
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
installer installer packed wix
Link:
https://www.filescan.io/uploads/694d2d3284afa5547b5de331/reports/5ee36041-95ae-4339-ae72-a3f3410879f5/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
File Type:
msi
First seen:
2025-12-24T01:23:00Z UTC
Last seen:
2025-12-26T19:24:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Strab.sb Trojan.Win32.Penguish.sb HEUR:Trojan.OLE2.Alien.gen UDS:DangerousObject.Multi.Generic
Link:
https://opentip.kaspersky.com/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff/results?tab=lookup
Score:
14%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff/
Verdict:
Malicious
Threat:
Family.HIJACKLOADER
Link:
https://tip.neiki.dev/file/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnfebvn7anvsde774chmah4nlzpoxpldxj4tx2trjfs3uildml7q._file
Verdict:
malicious
Label(s):
deerstealer
Create hunting rule
hijackloader
Create hunting rule
Similar samples:
02a9692c6ae6cb862657390e9d1adc6ea21ba810e73831ef3dc973b40f8d8966
DeerStealer
355af35a790780dff17cdebf659d1114143cd353009472f5ef7327d4f69bd8ab
DeerStealer
ba699da64d44b039defd4f42340bc7bec888b8dcef135d5735f2af309ce8ce72
DeerStealer
d662d6f8bb2270d6c85452a843ac8723cec2e656a5545c5e10e3867c595d3889
DeerStealer
error
DeerStealer
Result
Malware family:
hijackloader
Create hunting rule
Score:
  10/10
Tags:
family:deerstealer family:donutloader family:hijackloader discovery loader persistence privilege_escalation ransomware spyware stealer
Link:
https://tria.ge/reports/251225-pn13gsxlax/
Behaviour
Checks SCSI registry key(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Browser Information Discovery
Event Triggered Execution: Installer Packages
System Time Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
DeerStealer
Deerstealer family
Detects DeerStealer
Detects DonutLoader
Detects HijackLoader (aka IDAT Loader)
DonutLoader
Donutloader family
HijackLoader, IDAT loader, Ghostulse,
Hijackloader family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/89e14cab-e3f6-4747-a6a3-d32cb692782a
Malware family:
IDATLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8b4a40d5bf03/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/8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

File information

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

Web download

DeerStealer

Microsoft Software Installer (MSI) msi 8b4a40d5bf036b2193ffe08ec01f8d5e5eebbd63ba793bea714965ba216362ff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3743323/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/46033/

Comments