MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f13819d061e77a6a071a72f23e5daa4751db395492773280bd8e6285f0942e84. 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
| SHA256 hash: | f13819d061e77a6a071a72f23e5daa4751db395492773280bd8e6285f0942e84 |
|---|---|
| SHA3-384 hash: | 01f3695884da41c3f8cdc3c9da9dc3462fc66e0e492e05ef8b49d5e09cf55a2f7483b2421e26cd8a306ced5a6931e945 |
| SHA1 hash: | 3d9ae42b17acc38c9f8425124ddc7fdc7fbde6c0 |
| MD5 hash: | 24c3013ee542b77eb416866a4dcdf66e |
| humanhash: | music-beer-pizza-bravo |
| File name: | Vidneafhring.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'105'632 bytes |
| First seen: | 2025-02-19 19:33:28 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 671f2a1f8aee14d336bab98fea93d734 (204 x GuLoader, 4 x Formbook, 4 x RemcosRAT) |
| ssdeep | 24576:ZSafgu8S1aLLwWOroUmLDbZ7Jjl7WqDs3Ryo:ZlfguN1GLwWObSFhWquRh |
| Threatray | 117 similar samples on MalwareBazaar |
| TLSH | T1FC3522F2BB6468F5DB20873E346B9D5A56B1BE7138F41B963B9C3B1D2E72021430B145 |
| 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 | 39f9c4eec8f0e0a1 (2 x GuLoader) |
| Reporter |  malwarelabnet |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Thoracostracan |
|---|---|
| Issuer: | Thoracostracan |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2024-04-15T06:05:15Z |
| Valid to: | 2025-04-15T06:05:15Z |
| Serial number: | 21f75d39f9361ba117d671cb49e2548fd7161dbb |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 02b623a8bc3698ea20679df6198e7dba9fb65fa99cb1e76bea7edb8a9caa53c6 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
541
Origin country :
CAVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Vidneafhring.exe
Verdict:
Malicious activity
Analysis date:
2025-02-18 12:08:11 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file
Delayed reading of the file
Searching for the window
Creating a file in the %temp% subdirectories
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context blackhole installer microsoft_visual_cc obfuscated overlay signed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Unknown
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted sample
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2025-02-18 08:31:25 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
18 of 38 (47.37%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 107 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f13819d061e77a6a071a72f23e5daa4751db395492773280bd8e6285f0942e84
MD5 hash:
24c3013ee542b77eb416866a4dcdf66e
SHA1 hash:
3d9ae42b17acc38c9f8425124ddc7fdc7fbde6c0
SH256 hash:
4816b89d751b1a9d7943e99e58a524a873cd8951c4832cb42bd3046358569e18
MD5 hash:
b463dea5480d3d872dda674436756861
SHA1 hash:
059241c7a4dd030489c4dcd7196f670fb133905c
SH256 hash:
014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042
MD5 hash:
12b140583e3273ee1f65016becea58c4
SHA1 hash:
92df24d11797fefd2e1f8d29be9dfd67c56c1ada
SH256 hash:
a9520ce3bcfa4cfb7d9be3d317bdb3068246b38292e6d291a55f1b04a158998e
MD5 hash:
2a0f58baa9f48961707195d3d9ab8d0a
SHA1 hash:
abb640f58bd2a3fc50cd130bd960015df7a2a345
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
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_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| 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.
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 |
| 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::MoveFileA KERNEL32.dll::MoveFileExA |
| 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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