MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47. 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

DonutLoader

Vendor detections: 13

Intelligence 13 IOCs YARA 1 File information Comments

SHA256 hash:	f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47
SHA3-384 hash:	e6965e873da1aaf4f55bc31ef32975dfaa2fa7da6252b819b604176c8bbff495618b6922ea700722ed5af3be0ea60c87
SHA1 hash:	7953e15561d3420dd117ea1c3d9d4ccf084ff6e8
MD5 hash:	eb04e34849a5e099869e6dfb9fa367c6
humanhash:	network-jupiter-white-nuts
File name:	file
Download:	download sample
Signature	DonutLoader Create hunting rule
File size:	1'170'600 bytes
First seen:	2025-12-29 21:36:28 UTC
Last seen:	2025-12-29 23:35:55 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	60559adcf3698c3eb3c69577ebf28413 (3 x DonutLoader, 1 x njrat)
ssdeep	24576:lDnnwWlTWwxgA98duk41vrCvQIAeDR9Xsac27n:lnLT6A9841vRIA6Rps0n
Threatray	2'073 similar samples on MalwareBazaar
TLSH	T11D4533EDC6D151DFC84DA9B98432846FCD3E361913292C257B596CFAA29733028F8D39
TrID	38.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 15.6% (.ICL) Windows Icons Library (generic) (2059/9) 15.4% (.EXE) OS/2 Executable (generic) (2029/13) 15.2% (.EXE) Generic Win/DOS Executable (2002/3) 15.2% (.EXE) DOS Executable Generic (2000/1)
Magika	pebin
Reporter	Bitsight
Tags:	donutloader dropped-by-amadey exe fbf543 signed

Code Signing Certificate

Organisation:	letsencrypt.org
Issuer:	E8
Algorithm:	sha256WithRSAEncryption
Valid from:	2025-11-08T18:44:26Z
Valid to:	2026-02-06T18:44:25Z
Serial number:	06973175ca8bbbeb7debf76560a4c1989c8a
Intelligence:	2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	aaae1139de8c410828800466b27e3cc2ba0c7f4929fe3d24cf13c1a722b14cbc
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Bitsight

url: https://github.com/ozaik/-Marauder-Pi-Raspberry-Pi-5-Edition-Nexmon-/releases/download/tesst1/update.exe

Intelligence

File Origin

# of uploads :

# of downloads :

111

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

_f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47.exe

Verdict:

Malicious activity

Analysis date:

2025-12-29 21:38:59 UTC

Tags:

auto-startup auto-reg donutloader loader amsi-bypass

Link:

https://app.any.run/tasks/c708abcb-7ea4-4f2b-9bcc-612d49db2423

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/46499/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6952f48b7d915bf1778ecd60

Tags:

injection autorun virus sage

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

crypto hacktool packed signed

Link:

https://www.filescan.io/uploads/6952f4882fb7bb52ca815ff8/reports/3be3316f-619f-4ce7-8586-36e9b8a83b63/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47

Verdict:

Malicious

File Type:

exe x64

First seen:

2025-12-29T18:44:00Z UTC

Last seen:

2025-12-31T15:21:00Z UTC

Hits:

~10

Detections:

Backdoor.MSIL.Agent.sb Trojan.Win32.Shellcode.kjl PDM:Trojan.Win32.Generic Trojan.Win32.Agent.sb Trojan.Win64.Agentb.sb HEUR:Trojan-Ransom.MSIL.Blocker.gen Backdoor.Agent.TCP.C&C Trojan.Win64.DonutInjector.sb Trojan.Win64.Donut.sb Trojan.Win32.Shellcode.sb Trojan.MSIL.Agent.sb

Link:

https://opentip.kaspersky.com/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/c5ee8bf5-99ab-4e8a-9d81-e4b9f736af20

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/eb04e34849a5e099869e6dfb9fa367c6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47/

Verdict:

Malicious

Threat:

Trojan.Win64.Donut

Link:

https://tip.neiki.dev/file/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6kfrrkwrwjwvzlu6lh2nrezftutmgzjv5jh6ebqmpcqvj3tf5vdq._file

Verdict:

malicious

Label(s):

donutloader

Gathering data

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/2939980a-2bf9-4587-80c4-afba6fc24762

Unpacked files

SH256 hash:

f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47

MD5 hash:

eb04e34849a5e099869e6dfb9fa367c6

SHA1 hash:

7953e15561d3420dd117ea1c3d9d4ccf084ff6e8

Link:

https://www.unpac.me/results/856c5465-5027-4464-b81a-a5fc9e0ba7e8/

Malware family:

DonutLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f28b18aad1b2/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

0.84

Link:

https://yomi.yoroi.company/submissions/f28b18aad1b26d5cae9e59f4d893259d26c36535ea4fe2060c78a154ee65ed47

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.