MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1. 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: 15

Intelligence 15 IOCs YARA 6 File information Comments

SHA256 hash:	d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1
SHA3-384 hash:	c0e43548846059ed940b34b213f1c69cf19a953468471fbf31780782a9beffd44018dde53656d44686cceb4f5f972fd8
SHA1 hash:	37c0a6923e420e970bcf18b8c6e118f8a3ed9ed1
MD5 hash:	7ce9d9629fcb36a1015290badf3fb4d4
humanhash:	mirror-juliet-winner-oxygen
File name:	PO25_00026_MERCOID.exe
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	1'034'360 bytes
First seen:	2026-05-20 18:16:21 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e160ef8e55bb9d162da4e266afd9eef3 (145 x GuLoader, 33 x RemcosRAT, 17 x AgentTesla)
ssdeep	24576:khDLUKUORadp/XqGXeo7D8K5M6LaPZYnWpi9Pm/YGX2ci8Pe:2DLUKUORS/qGXeSSuWpwPm/tX2XKe
Threatray	2'407 similar samples on MalwareBazaar
TLSH	T1362502A1F394C8D9E8F90D71543799222437BCDEB8A1149E76EB366FE573302026790B
TrID	93.1% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133) 3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 0.7% (.EXE) Win64 Executable (generic) (6522/11/2) 0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
dhash icon	ccd4dcf4f2f2ce44 (1 x GuLoader)
Reporter	TomU
Tags:	exe GuLoader signed

Code Signing Certificate

Organisation:	Kerneoperation
Issuer:	Kerneoperation
Algorithm:	sha256WithRSAEncryption
Valid from:	2024-12-23T07:39:09Z
Valid to:	2025-12-23T07:39:09Z
Serial number:	7bfd9201b0b4b17deb67aad77eea7ac2f75d3fed
Thumbprint Algorithm:	SHA256
Thumbprint:	a6b7934fbfb874a61e39c04279c06dccce14145532df53df2a731f02bcc087e3
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

104

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

NSIS

Details

Link:

https://research.acce.ciphertechsolutions.com/results/118754f8-304a-4116-8b2f-4b47d147f56c/

Malware family:

n/a

ID:

File name:

PO25_00026_MERCOID.rar

Verdict:

Malicious activity

Analysis date:

2025-03-19 05:34:31 UTC

Tags:

arch-exec

Link:

https://app.any.run/tasks/974fa68e-25d1-463f-bd9d-62f5eb721760

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/66977/

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a0e17324159ce11f601fd25

Tags:

applicunwnt injection virus

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file

Creating a file in the %temp% subdirectories

Sending a custom TCP request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug base64 base64 expired-cert installer installer installer-heuristic microsoft_visual_cc nsis phishing reconnaissance signed smb

Link:

https://www.filescan.io/uploads/6a0e0179861ee596e641c516/reports/a80a161e-367f-42a5-8d76-c2f1d8bf5040/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-03-02T20:08:00Z UTC

Last seen:

2026-05-22T12:06:00Z UTC

Hits:

~10000

Link:

https://opentip.kaspersky.com/d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1/results?tab=lookup

Malware family:

NSIS

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/0a880451-07d2-4d40-9df9-af7656fc1799

Score:

86%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1/

Threat name:

Win32.Backdoor.Remcos

Status:

Suspicious

First seen:

2025-03-02 23:09:09 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

21 of 38 (55.26%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2htv6tpbbj7d23czxvbfyzy5qbvs2ca4m7yh6tegakzmxgogvgqq._file

Verdict:

malicious

Label(s):

cloudeye

Result

Malware family:

guloader

Score:

10/10

Tags:

family:guloader discovery downloader installer

Link:

https://tria.ge/reports/260520-wwp4hsaw4y/

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 NtSetInformationThreadHideFromDebugger

Loads dropped DLL

Family: Guloader,Cloudeye

Unpacked files

SH256 hash:

d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1

MD5 hash:

7ce9d9629fcb36a1015290badf3fb4d4

SHA1 hash:

37c0a6923e420e970bcf18b8c6e118f8a3ed9ed1

Link:

https://www.unpac.me/results/f373927c-e887-4560-b3a8-28fe28e8a64d/

SH256 hash:

75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

MD5 hash:

a436db0c473a087eb61ff5c53c34ba27

SHA1 hash:

65ea67e424e75f5065132b539c8b2eda88aa0506

Link:

https://www.unpac.me/results/f373927c-e887-4560-b3a8-28fe28e8a64d/

Malware family:

GuLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/d1e75f4de10a/report/overview.html

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

Threat name:

Suspicious File

Score:

0.52

Link:

https://yomi.yoroi.company/submissions/d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1

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_all_IPv6_variants Create hunting rule
Author:	Bierchermuesli
Description:	Generic IPv6 catcher

Rule name:	Detect_SliverFox_String Create hunting rule
Author:	huoji
Description:	Detect files is `SliverFox` malware

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

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Malspam

GuLoader

exe d1e75f4de10a7e3d6c59bd425c671d806b2d081c67f07f4c8602b2cb99c6a9a1

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/66977/

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