MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404. 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: 14

Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash:	bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404
SHA3-384 hash:	c1c7db50282e7e9f809e8cc69119fd914edb79e9c1db067769f32c67288e3c82e16f987d7f25e262dd863a97beadb4dd
SHA1 hash:	a69aed329c1e40072732dab67d19fd08a6e97e5c
MD5 hash:	d1ec92785b6e939fae3e0586ae920473
humanhash:	leopard-william-low-foxtrot
File name:	List & Sample_Doc3.exe
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	858'368 bytes
First seen:	2024-07-24 06:53:30 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook)
ssdeep	24576:JYDoeMwkejuoLDeVsOTjh4pWKFS7a/HPFONSe:ydMErLKhTjh4pLQm8N
Threatray	151 similar samples on MalwareBazaar
TLSH	T14D050251B2A2EA90D8540D361503C7958F72AD202A22ED97378CBB6FDF777C16B0235B
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 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)
Reporter	lowmal3
Tags:	exe GuLoader signed

Code Signing Certificate

Organisation:	Tillyses Vinyon
Issuer:	Tillyses Vinyon
Algorithm:	sha256WithRSAEncryption
Valid from:	2024-03-21T07:23:13Z
Valid to:	2027-03-21T07:23:13Z
Serial number:	33617a94f0e420e1482b30dd4fd4541bc9618a80
Thumbprint Algorithm:	SHA256
Thumbprint:	d012c6ba113c11a2fbaa7f49cd2126b06f972cea5586e78d3cff0c72d476b8f9
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

347

Origin country :

Vendor Threat Intelligence

Malware family:

guloader

ID:

File name:

bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404.zip

Verdict:

Malicious activity

Analysis date:

2024-07-24 12:39:03 UTC

Tags:

guloader loader

Link:

https://app.any.run/tasks/627015e6-76ab-4e7e-b305-d389e7afb20b

Note:

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

Detection(s):

SecuriteInfo.com.Win32.Evo-gen.16293.23775.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66a0a50f6f74caeb2f89ac37

Tags:

Encryption Execution Static Injector

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Creating a window

Creating a file

Launching a process

Using the Windows Management Instrumentation requests

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint installer lolbin microsoft_visual_cc overlay packed shell32

Link:

https://www.filescan.io/uploads/66a0a50cdfa8b2fced4dd2f7/reports/11faf7ef-8a47-4240-a7f4-8594966412f0/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/37b2cd22-545b-41b1-8161-36fab3662c00

Result

Threat name:

GuLoader, Snake Keylogger

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1479844

Signature

AI detected suspicious sample

Antivirus detection for URL or domain

Found malware configuration

Found suspicious powershell code related to unpacking or dynamic code loading

Hides threads from debuggers

Initial sample is a PE file and has a suspicious name

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

Sigma detected: Suspicious Script Execution From Temp Folder

Suspicious powershell command line found

Switches to a custom stack to bypass stack traces

Tries to detect the country of the analysis system (by using the IP)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Uses the Telegram API (likely for C&C communication)

Writes to foreign memory regions

Yara detected GuLoader

Yara detected Snake Keylogger

Yara detected Telegram RAT

Behaviour

Behavior Graph:

Download SVG

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404/

Threat name:

Win32.Spyware.Snakekeylogger

Status:

Malicious

First seen:

2024-07-24 01:53:04 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=x4kh5xaepxhmnizrtcspjc5bqx6lvnzgl76tcox2gdepg474gqca._file

Verdict:

malicious

GuLoader

26867f2c23465d6220bb9f81714c67d2769e54e4ebd0eb15ee3fa3d0dc3b6be3

GuLoader

915679d3455a0c6e576e418438653f1d48ff230e72ba59b3ca0a83ae128f333c

GuLoader

96e8eb2604c81bbb31a16ccf186aa3a9990f01e03b59df7c29536293edfa5454

GuLoader

d0162a86e38114d2aeb0530bfca4d939cd4d15e5cc35d50cb64c20123f0f3204

GuLoader

d4471111f0e92ea1d7760bd2cc6f75ce16bc8245d077edc47d56181f23a96cea

GuLoader

+ 141 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery execution

Link:

https://tria.ge/reports/240724-hn8c8stbnn/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Command and Scripting Interpreter: PowerShell

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/fa849591-52b8-46e2-9732-ef5ff1830ee5

Unpacked files

SH256 hash:

bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404

MD5 hash:

d1ec92785b6e939fae3e0586ae920473

SHA1 hash:

a69aed329c1e40072732dab67d19fd08a6e97e5c

Link:

https://www.unpac.me/results/8d901e6b-b712-44d5-90ec-c3e6cf4e9acb/

Malware family:

GuLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bf147edc047d/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/bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404

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:	NSIS_April_2024 Create hunting rule
Author:	NDA0N
Description:	Detects NSIS installers

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	PE_Potentially_Signed_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

exe bf147edc047dcec6a33198a4f48ba185fcbab7265ffd313afa30c8f373fc3404

(this sample)

Delivery method

Distributed via e-mail attachment

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
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
COM_BASE_API	Can Download & Execute components	ole32.dll::CoCreateInstance
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA 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::GetWindowsDirectoryW
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

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample