MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404. 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 1 File information Comments

SHA256 hash:	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404
SHA3-384 hash:	5b2c87b26329103903f0d1d3ce090bc15152b3be0b0364ffbce6ef9ef5197150a6721f6cd42da7e6e5a56b7c6eb45681
SHA1 hash:	5cad41352de9e2c9db06dc8a7f4d079810f63ee3
MD5 hash:	a22056e4a371b6512e3715adccd24fab
humanhash:	berlin-snake-delaware-ceiling
File name:	ORDER#73672-MAT37367.exe
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	787'656 bytes
First seen:	2024-11-09 08:10:59 UTC
Last seen:	2026-05-21 13:46:40 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	6e7f9a29f2c85394521a08b9f31f6275 (326 x GuLoader, 65 x AgentTesla, 63 x RemcosRAT)
ssdeep	24576:SMwhYwlRZjfxAyExC8Zx0PARxFWfcFqal/F4X5ZiJ:SMwhNlR5xAFZq+WfQiX5i
Threatray	590 similar samples on MalwareBazaar
TLSH	T17EF42396CB95C217EDA75AB4D1359F222EECDD06C2FA5E1F1B706B88382100CD56B722
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	1ad9d8b9b9b9b9b8 (5 x GuLoader, 3 x SnakeKeylogger)
Reporter	abuse_ch
Tags:	exe GuLoader signed

Code Signing Certificate

Organisation:	Fravrsprocenten
Issuer:	Fravrsprocenten
Algorithm:	sha256WithRSAEncryption
Valid from:	2024-07-17T10:57:50Z
Valid to:	2027-07-17T10:57:50Z
Serial number:	50f756251ce677a4fbdecd54517140d95dd20899
Thumbprint Algorithm:	SHA256
Thumbprint:	2fdd05e87541e318943b6329779c587eb7bc9cb30dd3e359700d2227f12fa5d8
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

397

Origin country :

Vendor Threat Intelligence

Malware family:

guloader

ID:

File name:

ORDER#73672-MAT37367.exe

Verdict:

Malicious activity

Analysis date:

2024-11-09 08:41:16 UTC

Tags:

guloader loader qrcode rat remcos remote evasion

Link:

https://app.any.run/tasks/d0cb119a-df69-4c50-9641-92dea9f72a35

Note:

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

Detection(s):

SecuriteInfo.com.FileRepMalware.4183.5227.UNOFFICIAL

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=672f19321621f8e41b8eea60

Tags:

gumen nsis

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% subdirectories

Creating a file

Searching for the window

Launching a process

Using the Windows Management Instrumentation requests

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

installer masquerade microsoft_visual_cc overlay packed

Link:

https://www.filescan.io/uploads/672f191687ea6c9a82f7b2f0/reports/d5f723d0-6a33-4a89-be52-80d028874e67/overview

Verdict:

Malicious

Labled as:

Tedy.Generic

Link:

https://www.hybrid-analysis.com/sample/8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/d780615d-08e0-4054-bcd6-73e1910e9a1f

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1552664

Signature

AI detected suspicious sample

C2 URLs / IPs found in malware configuration

Detected Remcos RAT

Early bird code injection technique detected

Found malware configuration

Found suspicious powershell code related to unpacking or dynamic code loading

Initial sample is a PE file and has a suspicious name

Loading BitLocker PowerShell Module

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Powershell drops PE file

Queues an APC in another process (thread injection)

Sigma detected: Remcos

Sigma detected: Suspicious Script Execution From Temp Folder

Suricata IDS alerts for network traffic

Suspicious powershell command line found

Writes to foreign memory regions

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404/

Threat name:

Win32.Trojan.Guloader

Status:

Suspicious

First seen:

2024-11-09 08:00:47 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

13 of 38 (34.21%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rmp4vwbqthq5v45mzwzz62faxvuwwbj2vxeeoluqbd6qe6rzaqca._file

Verdict:

malicious

Label(s):

cloudeye

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:.9.24 discovery execution persistence rat

Link:

https://tria.ge/reports/241109-j3aaes1djg/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

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

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Remcos

Remcos family

Malware Config

C2 Extraction:

moniepont.dynamic-dns.net:3791

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f248e244-fbae-4fa2-8d20-9ea15a3cc208

Unpacked files

SH256 hash:

8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404

MD5 hash:

a22056e4a371b6512e3715adccd24fab

SHA1 hash:

5cad41352de9e2c9db06dc8a7f4d079810f63ee3

Link:

https://www.unpac.me/results/a9bd9091-c2f6-443d-95b7-fb7573c69d33/

Malware family:

GuLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8b1fcad83099/report/overview.html

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404

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:	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.

No further information available

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
COM_BASE_API	Can Download & Execute components	ole32.dll::CoCreateInstance
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::SetFileSecurityW
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExW SHELL32.dll::SHFileOperationW SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW ADVAPI32.dll::OpenProcessToken KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDiskFreeSpaceW KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::MoveFileW KERNEL32.dll::MoveFileExW
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuW USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::OpenClipboard USER32.dll::PeekMessageW USER32.dll::CreateWindowExW

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