MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0
SHA3-384 hash: 8808cf541c2f23936e61a89d3b77d273bb0f6e0e4af2a0a0341ac6b3195fc2c9df4222bd43a8476c33a268fa0bca312c
SHA1 hash: a2e04a36a215a5a90838965126b5e0b8baa7cf88
MD5 hash: f744b39f06cad577364eff72186e0626
humanhash: oxygen-beryllium-oklahoma-fruit
File name:Request For Quotation Details_Ref.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:972'600 bytes
First seen:2024-03-25 12:30:39 UTC
Last seen:2024-03-25 14:36:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 24576:pbZCmf67FtuZFX3KJQghsUyj6/onNd5gWrotUF3y:R3f67FtuZB3oQyCG/otrfF3y
TLSH T10325F1CBE64043F9C8348A36D01F953206579D7FAAD99F06A1A0F52B2872183DF2FD59
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)
File icon (PE):PE icon
dhash icon f2e68c989898b494 (4 x GuLoader, 3 x Loki)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Aproposet
Issuer:Aproposet
Algorithm:sha256WithRSAEncryption
Valid from:2024-03-09T09:40:37Z
Valid to:2027-03-09T09:40:37Z
Serial number: 6f67570a69e02cf0bd437617a2de72e68f0ede4b
Thumbprint Algorithm:SHA256
Thumbprint: 80465455c1f9b2135b3436a189ce879970dcca6b00a6ab1a4abb406632620c08
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
310
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
lokibot
Create hunting rule
ID:
1
File name:
b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0.exe
Verdict:
Malicious activity
Analysis date:
2024-03-25 12:31:11 UTC
Tags:
lokibot stealer trojan
Link:
https://app.any.run/tasks/f295e5b4-cace-4e9b-9ab3-85e2aef17bbb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/66016e9d93f246d95f06f29f/reports/ba539696-55e9-477f-8e58-3db2a52ae7ce/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/32d7bc60-7f0b-4099-b4bf-db0ccfd09b95
Result
Threat name:
GuLoader, Lokibot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1415051
Signature
Antivirus detection for URL or domain
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
Obfuscated command line found
Powershell drops PE file
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Lokibot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1415051 Sample: Request For Quotation Detai... Startdate: 25/03/2024 Architecture: WINDOWS Score: 100 36 saldanha.top 2->36 38 drive.usercontent.google.com 2->38 40 drive.google.com 2->40 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Antivirus detection for URL or domain 2->54 56 6 other signatures 2->56 8 Request For Quotation Details_Ref.exe 26 2->8         started        signatures3 process4 file5 26 C:\Users\user\AppData\...\Hjertensgodes.Nim, ASCII 8->26 dropped 58 Suspicious powershell command line found 8->58 12 powershell.exe 20 8->12         started        signatures6 process7 file8 28 C:\...\Request For Quotation Details_Ref.exe, PE32 12->28 dropped 60 Obfuscated command line found 12->60 62 Writes to foreign memory regions 12->62 64 Hides threads from debuggers 12->64 66 Powershell drops PE file 12->66 16 wab.exe 100 12->16         started        20 conhost.exe 12->20         started        22 cmd.exe 1 12->22         started        24 wab.exe 12->24         started        signatures9 process10 dnsIp11 30 saldanha.top 104.21.73.201, 49711, 49712, 49713 CLOUDFLARENETUS United States 16->30 32 drive.usercontent.google.com 142.251.16.132, 443, 49710 GOOGLEUS United States 16->32 34 drive.google.com 172.253.115.102, 443, 49709 GOOGLEUS United States 16->34 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->42 44 Tries to steal Mail credentials (via file / registry access) 16->44 46 Tries to harvest and steal ftp login credentials 16->46 48 2 other signatures 16->48 signatures12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-21 23:16:04 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wz6fsqnyvawej3umq5xfh7aegxmnkzjusg3mmhxq5rposk57x3ia._file
Verdict:
malicious
Label(s):
lokipasswordstealer(pws)
Create hunting rule
Result
Malware family:
lokibot
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:lokibot collection downloader persistence spyware stealer trojan
Link:
https://tria.ge/reports/240325-pp46jaae5w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Guloader,Cloudeye
Lokibot
Unpacked files
SH256 hash:
b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0
MD5 hash:
f744b39f06cad577364eff72186e0626
SHA1 hash:
a2e04a36a215a5a90838965126b5e0b8baa7cf88
Link:
https://www.unpac.me/results/5d095008-0f7a-4e76-99ec-5ca1ba9a7ded/
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/b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0

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
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
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

Executable exe b67c5941b8a82c44ee8c876e53fc0435d8d5653491b6c61ef0ec5ee92bbfbed0

(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
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments