MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7. 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: 11

Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash:	bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7
SHA3-384 hash:	f4eca2c1b854249bd10b74fa1b31a3e67296fcce5585d737ffccfe3768dee75efa6a057ffbc38f994b2b1946c509c7d0
SHA1 hash:	78654bb0f6b0e0b83a280415c4e9f7c76185f0ac
MD5 hash:	4f2f6a223c9653cc685185a8d3f6ccad
humanhash:	whiskey-seven-chicken-eighteen
File name:	bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	902'759 bytes
First seen:	2025-08-12 14:45:23 UTC
Last seen:	2026-05-20 18:11:04 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	6e7f9a29f2c85394521a08b9f31f6275 (326 x GuLoader, 65 x AgentTesla, 63 x RemcosRAT)
ssdeep	24576:ITjEFGxy67XwUEQDaWfP4YpCosSpjNDpXgI0/eGuY:IT4wxnX6KaoZpRs0NDpRyuY
TLSH	T178153301B69A942BE561193108B06EE265FEED7AC2F74F131FC47F4968D21D2E93C790
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
dhash icon	34e2e672bae0e67a (6 x GuLoader, 2 x VIPKeylogger)
Reporter	adrian__luca
Tags:	exe GuLoader

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7

Verdict:

No threats detected

Analysis date:

2025-08-12 22:08:57 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/dc65077a-59cb-49c3-bf11-d72d5db5abc5

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/20796/

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689b5784fca70bd90e8f1af3

Tags:

injection injector virus

Result

Verdict:

Suspicious

Maliciousness:

Behaviour

Creating a window

Searching for the window

Creating a file

Creating a file in the %temp% subdirectories

Searching for the Windows task manager window

Launching a process

Creating a process with a hidden window

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context installer microsoft_visual_cc obfuscated overlay packed packer_detected

Link:

https://www.filescan.io/uploads/689b6ee52fbe0788fb1e6ac8/reports/73b3bcb6-946c-40d2-87d8-a5a9d2807cc1/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/428ec61b-140b-4ffc-bcbc-82dfaad469df

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7/

Threat name:

Win32.Trojan.GuLoader

Status:

Malicious

First seen:

2025-07-28 22:31:56 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=x6v4kfkvnhcm6psnee4azgg44cderc2uf2khp6vafp6jwh2ufs3q._file

Result

Malware family:

vipkeylogger

Score:

10/10

Tags:

family:vipkeylogger adware collection discovery execution keylogger persistence spyware stealer

Link:

https://tria.ge/reports/250812-t5rbtsfj2t/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Browser Information Discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in Windows directory

Drops file in System32 directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Accesses Microsoft Outlook profiles

Blocklisted process makes network request

Command and Scripting Interpreter: PowerShell

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Loads dropped DLL

VIPKeylogger

Vipkeylogger family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f99d76c4-cdc8-493c-8b2e-2f80b79e0cba

Unpacked files

SH256 hash:

bfabc5155569c4cf3e4d21380c98dce086488b542e9477faa02bfc9b1f542cb7

MD5 hash:

4f2f6a223c9653cc685185a8d3f6ccad

SHA1 hash:

78654bb0f6b0e0b83a280415c4e9f7c76185f0ac

Link:

https://www.unpac.me/results/3f9dfa48-5976-4654-8bf5-6f9b1847df7f/

SH256 hash:

d5de6937d32e3b6df451bee1fa21e056cab3ece9105ea2ca7522e46dc01d45ca

MD5 hash:

efea9bcaab23000e72cedf0f94f652c6

SHA1 hash:

202dd550d882b0a0cea9ec18e368442e36ffc664

Link:

https://www.unpac.me/results/3f9dfa48-5976-4654-8bf5-6f9b1847df7f/

SH256 hash:

c1b7c3ef8b77a5bb335dc9ec9c3546b249014dde43aa2a9ed719b4d5933741df

MD5 hash:

ec9c99216ef11cdd85965e78bc797d2c

SHA1 hash:

1d5f93fbf4f8aab8164b109e9e1768e7b80ad88c

Link:

https://www.unpac.me/results/3f9dfa48-5976-4654-8bf5-6f9b1847df7f/

Malware family:

GuLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bfabc5155569/report/overview.html

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

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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Cape

https://www.capesandbox.com/analysis/20796/

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_AUTHENTICODE	Missing Authenticode	high
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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