MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 833aae0bc34e211145371b619b7c542864e9f864e26de1690fd2f6be76fcb174. 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: 12
| SHA256 hash: | 833aae0bc34e211145371b619b7c542864e9f864e26de1690fd2f6be76fcb174 |
|---|---|
| SHA3-384 hash: | 668c4e71b548d21bc04bc07c7e08aaf9b9c23f26eb8fcd231f648590aa738c7d8f3d780a928f664f2af9f7ba400ed30f |
| SHA1 hash: | ba3a961e39a78ec97ae30cc35064ad229e55e79f |
| MD5 hash: | f57a51a81deb976cecac39a4c1a4434b |
| humanhash: | october-moon-black-ten |
| File name: | Bank 0982747.pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 560'184 bytes |
| First seen: | 2025-02-07 07:04:50 UTC |
| Last seen: | 2025-02-07 21:47:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3abe302b6d9a1256e6a915429af4ffd2 (299 x GuLoader, 39 x Formbook, 25 x Loki) |
| ssdeep | 12288:F45xaPUMXaMEQrX1GXtxUQnbhSui4Pk94:2iBqMrD4dxrhLi4Py |
| TLSH | T1D9C42350A669D833FB845232DE6BEAFF8AD9CE59F502291B27703E057734511E90F20E |
| 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 | 9819c9ca8a8c0c03 (7 x GuLoader) |
| Reporter |  threatcat_ch |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Indianerens |
|---|---|
| Issuer: | Indianerens |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-01-06T03:30:37Z |
| Valid to: | 2026-01-06T03:30:37Z |
| Serial number: | 6370ca89defce7d05a1c077aeab18a28a7309360 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 712a5bee364613b4f3fb21a8aabc9cbe5636e87154ad51c2ac7bf994c1e2aabf |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
3
# of downloads :
514
Origin country :
CHVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank 0982747.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2025-02-07 07:06:01 UTC
Tags:
fody
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
underscore obfuscate shell virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file
Launching a process
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context installer masquerade microsoft_visual_cc obfuscated overlay signed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Verdict:
Suspicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE digital signature
Early bird code injection technique detected
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
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Double Extension File Execution
Sigma detected: Suspicious Double Extension Files
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution persistence
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
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
loader guloader
YARA:
NSIS_GuLoader_July_2024
Unpacked files
SH256 hash:
833aae0bc34e211145371b619b7c542864e9f864e26de1690fd2f6be76fcb174
MD5 hash:
f57a51a81deb976cecac39a4c1a4434b
SHA1 hash:
ba3a961e39a78ec97ae30cc35064ad229e55e79f
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| 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.
Malspam
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 |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::SetFileSecurityA |
| COM_BASE_API | Can Download & Execute components | ole32.dll::CoCreateInstance |
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges |
| SHELL_API | Manipulates System Shell | SHELL32.dll::ShellExecuteExA SHELL32.dll::SHFileOperationA SHELL32.dll::SHGetFileInfoA |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessA ADVAPI32.dll::OpenProcessToken KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::LoadLibraryExA KERNEL32.dll::GetDiskFreeSpaceA KERNEL32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileA KERNEL32.dll::CreateDirectoryA KERNEL32.dll::CreateFileA KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileExA KERNEL32.dll::MoveFileA |
| WIN_BASE_USER_API | Retrieves Account Information | ADVAPI32.dll::LookupPrivilegeValueA |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExA ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegQueryValueExA ADVAPI32.dll::RegSetValueExA |
| WIN_USER_API | Performs GUI Actions | USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::FindWindowExA USER32.dll::OpenClipboard USER32.dll::PeekMessageA USER32.dll::CreateWindowExA |
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