🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487
SHA3-384 hash: 36a6a19b29dfb40f86bcf8e0c54522d037e7309142c49583cf27dd3d92d931fa6dfa4c3b7758b6f4bdbe8332ab4dd41c
SHA1 hash: 8bdf213176f3f4252ba3bbca60f066ad2041f205
MD5 hash: 912486b093843db16cb6c85e668ecb1b
humanhash: kansas-nevada-emma-skylark
File name:PO#14309876_pdf.arj
Download: download sample
Signature GuLoader
Create hunting rule
File size:452'510 bytes
First seen:2025-12-17 08:14:37 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:5fl0XZpX2+mDYzZGsoi36o77GCbkIrzPMaY09Wv09OV:zWQYZz/HGCQCm09SRV
TLSH T18DA4233FD20E9F8EC7B63D75415B0B36F582BC81A0CC06ADA6741ED5847E2951CD2D8A
Magika zip
Reporter cocaman
Tags:arj GuLoader zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Saiyoot w. <ruth@zaburo.com>" (likely spoofed)
Received: "from chief.zaburo.com (chief.zaburo.com [94.26.68.29]) "
Date: "16 Dec 2025 18:42:32 -0800"
Subject: "Fwd: New Order"
Attachment: "PO#14309876_pdf.arj"

Intelligence

File Origin
# of uploads :
1
# of downloads :
195
Origin country :
CH CH
File Archive Information

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

File name:scan.exe
File size:586'136 bytes
SHA256 hash: 90e8b7e31fd00f3209ed27b8eb5f74ac9b0b29aa9eeacc116518c9912ab11378
MD5 hash: 3d8cd70e35ff97c186be4dcc55bd31ce
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/34a8c94a-ff89-497c-8e47-888b972efcd1/
Detection(s):
SecuriteInfo.com.NSIS.MalwareX-gen.72964416.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=694216304d2b81828c3b695a
Tags:
injection virus blic
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole guloader installer installer installer-heuristic microsoft_visual_cc nemesis nsis overlay signed
Link:
https://www.filescan.io/uploads/6942669f3f8fdbf8e9490fa2/reports/8456341a-a965-494d-8fd4-317199482eca/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487
Verdict:
Malicious
File Type:
zip
First seen:
2025-12-16T22:10:00Z UTC
Last seen:
2025-12-17T06:32:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487/results?tab=lookup
Score:
90%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Zip Archive
Link:
https://app.malva.re/file/912486b093843db16cb6c85e668ecb1b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-12-17 01:58:40 UTC
File Type:
Binary (Archive)
Extracted files:
21
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zzej3pc6zm3wvs2hqt4tmmnjyx3n7jf7bfwij3jjv3x5jaff2sdq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery persistence rat
Link:
https://tria.ge/reports/251217-j58wrstnbn/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
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/ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

GuLoader

zip ce489dbc5ecb376acb4784f93631a9c5f6dfa4bf096c84ed29aeefd480a5d487

(this sample)

GuLoader

Executable exe 90e8b7e31fd00f3209ed27b8eb5f74ac9b0b29aa9eeacc116518c9912ab11378

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 90e8b7e31fd00f3209ed27b8eb5f74ac9b0b29aa9eeacc116518c9912ab11378
  
Dropping
GuLoader
  
Dropping
MD5 3d8cd70e35ff97c186be4dcc55bd31ce

Comments