MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3. 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


GuLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3
SHA3-384 hash: 4f26a66ef1e181e0d64180ff11ab4cbc5eacf697e724011b030962114c467055151e9a07260a44aa3e5819a60e8d7b2e
SHA1 hash: 56770b08c9c60a63e742104b44ee706e1f01f9b4
MD5 hash: c249b922adda19ad80da0b6c4d9be6c5
humanhash: shade-michigan-sink-purple
File name:remittanceswift#0987654.arj
Download: download sample
Signature GuLoader
Create hunting rule
File size:679'696 bytes
First seen:2025-12-12 10:01:07 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:WMUJmulsyG9jMJeW91nkC/eFQWJYnKcaU3Ps1mVEwUufkeyxYAxB:W7JOZ91W91n8RZJU/ZEwUYryuAxB
TLSH T1ECE42354FFBEA610AE0A303BE0F57DE11549C7773365CE52DFBA062D8AA942AE50071C
Magika zip
Reporter cocaman
Tags:arj GuLoader SWIFT zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Ruth Fiseha - Accounts <ruth@zaburo.com>" (likely spoofed)
Received: "from chief.zaburo.com (chief.zaburo.com [94.26.68.29]) "
Date: "12 Dec 2025 02:00:32 -0800"
Subject: "Fwd: swift remittance advice"
Attachment: "remittanceswift#0987654.arj"

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:scan.exe
File size:704'272 bytes
SHA256 hash: 60e423834f498f8e896ec2cfc98acdfbdafcaf1624853eb9cde5ca2b076fa54f
MD5 hash: 2ef506ed25b1443584ffa094ce5be588
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/56c2bf88-8a84-493d-8b33-125f5fa2caab/
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693bd7c1a675b653bd1059e8
Tags:
injection virus blic
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis overlay packed signed
Link:
https://www.filescan.io/uploads/693be7f564bd958a521096fd/reports/4b9dc9b6-a6ff-40ad-b62b-eaddaa3864dc/overview
Verdict:
Suspicious
Labled as:
Trojan.GuLoader
Link:
https://www.hybrid-analysis.com/sample/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3
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:
zip
First seen:
2025-12-12T05:19:00Z UTC
Last seen:
2025-12-12T13:08:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3/results?tab=lookup
Score:
72%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Zip Archive
Link:
https://app.malva.re/file/c249b922adda19ad80da0b6c4d9be6c5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-12-12 08:56:37 UTC
File Type:
Binary (Archive)
Extracted files:
35
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3dobolwhkz7bnzri4fvimyugvzf4ek67oq3ghg4zwqaqxm64l6rq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader installer persistence rat
Link:
https://tria.ge/reports/251212-l4m9sa1rg1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
91.231.222.182:2404
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
Link:
https://yomi.yoroi.company/submissions/d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

GuLoader

zip d8dc172ec7567e16e628e16a866286ae4bc22bdf7436639b99b4010bb3dc5fa3

(this sample)

GuLoader

Executable exe 60e423834f498f8e896ec2cfc98acdfbdafcaf1624853eb9cde5ca2b076fa54f

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 60e423834f498f8e896ec2cfc98acdfbdafcaf1624853eb9cde5ca2b076fa54f
  
Dropping
GuLoader
  
Dropping
MD5 2ef506ed25b1443584ffa094ce5be588

Comments