MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 7986707b0d2bdad3a3d3a003dfa941782b2d6312b044f6db93f66e99f18d9b53. 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: 6
| SHA256 hash: | 7986707b0d2bdad3a3d3a003dfa941782b2d6312b044f6db93f66e99f18d9b53 |
|---|---|
| SHA3-384 hash: | dfd74f4863d0676ceca8eeb77299ce6c5ef8d2694f792d5519a6ce82df55a702782ff58395d57f455850bb2ed22c7756 |
| SHA1 hash: | eda9331ca7c91d537a0eec0ba4deaa11df39d19d |
| MD5 hash: | 94f6b001c65aa9e37c14c65b57556832 |
| humanhash: | tennessee-nineteen-pennsylvania-chicken |
| File name: | 25013665.tbz2 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 410'713 bytes |
| First seen: | 2025-09-18 10:15:23 UTC |
| Last seen: | Never |
| File type: | rar |
| MIME type: | application/x-rar |
| ssdeep | 6144:I69EuW8HDdvOCdrF6AdLLDhwrgicz/mNcikOZyx/rcaWOomsQkJl/0nZjEVrd5b:I69OCBOCd4a6gvzaPD2W/dJBYZjEVrf |
| TLSH | T1109423BAD5EF0E47FA80A69F1420015B9F4E54D1EA35B6D6B7309322BBD347A811BA00 |
| TrID | 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1) |
| Magika | rar |
| Reporter |  cocaman |
| Tags: | GuLoader rar tbz2 |
cocaman
Malicious email (T1566.001)From: "ref@jct-gs.com" (likely spoofed)
Received: "from lm-exchage.com (mail.lm-exchage.com [192.3.249.104]) "
Date: "17 Sep 2025 08:12:14 -0700"
Subject: "PO"
Attachment: "25013665.tbz2"
Intelligence
File Origin
# of uploads :
1
# of downloads :
95
Origin country :
CHFile Archive Information
This file archive contains 1 file(s), sorted by their relevance:
| File name: | 25013665.exe |
|---|---|
| File size: | 432'096 bytes |
| SHA256 hash: | f76270967e9fda2201f6c82a66638b536de9ec7cab9978604f67dbca5d1867bf |
| MD5 hash: | f5f59427b5df24b4dd71453e975a426b |
| MIME type: | application/x-dosexec |
| Signature | GuLoader |
Vendor Threat Intelligence
Verdict:
Malicious
Score:
93.3%
Tags:
injection obfusc virus
Verdict:
Unknown
Threat level:
2.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer microsoft_visual_cc nsis overlay signed
Verdict:
Malicious
File Type:
rar
First seen:
2025-09-17T06:54:00Z UTC
Last seen:
2025-09-17T06:54:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Rar Archive
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2025-09-17 14:16:27 UTC
File Type:
Binary (Archive)
Extracted files:
8
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
masslogger
Score:
10/10
Tags:
family:guloader family:masslogger adware collection discovery downloader execution installer macos persistence spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
NSIS installer
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Guloader family
Guloader,Cloudeye
MassLogger
Masslogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8382114271:AAHSbVPDbET_crWmchBbXRYm9X0nm-CRunM/sendMessage?chat_id=7629232865
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | shellcode |
|---|---|
| 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
rar 7986707b0d2bdad3a3d3a003dfa941782b2d6312b044f6db93f66e99f18d9b53
(this sample)
exe Delivery method
Distributed via e-mail attachment
Dropping
GuLoader
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