MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 854e5f77f788bbbe6e224195e115c749172cd12302afca370d4f9e3d53d005fd. 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
Gunra
Vendor detections: 15
| SHA256 hash: | 854e5f77f788bbbe6e224195e115c749172cd12302afca370d4f9e3d53d005fd |
|---|---|
| SHA3-384 hash: | b2c61c735e6b5dc3325ef02347012f8bdd96e4df39f178fdfdcc71c066cb1b1e59eee7dda74e8072b10746f7d81a85dc |
| SHA1 hash: | 77b294117cb818df701f03dc8be39ed9a361a038 |
| MD5 hash: | 9a7c0adedc4c68760e49274700218507 |
| humanhash: | network-twelve-network-nevada |
| File name: | 854e5f77f788bbbe6e224195e115c749172cd12302afca370d4f9e3d53d005fd |
| Download: | download sample |
| Signature | Gunra |
| File size: | 199'168 bytes |
| First seen: | 2025-04-24 06:06:12 UTC |
| Last seen: | 2025-09-26 11:59:33 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 93fc6edbd41db10e4c203e0aaab8215c (2 x Gunra) |
| ssdeep | 3072:V7cXqgLbJrV//R9gSRGT+1ddVeJWfmauiOFYDw93M+pc1e:7gn5VHgB86Wu8OFYxg |
| TLSH | T196141A01726ED6F6E09342F889529A02FEB631846B284BEFC3844B709D171D57DEDFA1 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  TheRavenFile |
| Tags: | exe gunra Ransomware |
Intelligence
File Origin
# of uploads :
3
# of downloads :
826
Origin country :
INVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
854e5f77f788bbbe6e224195e115c749172cd12302afca370d4f9e3d53d005fd
Verdict:
Malicious activity
Analysis date:
2025-04-24 06:09:14 UTC
Tags:
vohuk ransomware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
ransomware virus blic
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file
Creating a file in the %AppData% directory
Creating a file in the %AppData% subdirectories
Changing a file
Modifies multiple files
Reading critical registry keys
Moving a file to the %AppData% subdirectory
Creating a file in the mass storage device
Stealing user critical data
Encrypting user's files
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
conti expand lolbin microsoft_visual_cc
Verdict:
Malicious
Labled as:
Ransom.RTH.Generic
Malware family:
Conti
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.spre.phis.spyw.evad
Score:
80 / 100
Signature
Found Tor onion address
Infects executable files (exe, dll, sys, html)
Joe Sandbox ML detected suspicious sample
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Overwrites Mozilla Firefox settings
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win64.Downloader.BazaarLoader
Status:
Malicious
First seen:
2025-04-16 07:49:00 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
3/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
credential_access discovery ransomware spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Browser Information Discovery
Drops desktop.ini file(s)
Credentials from Password Stores: Windows Credential Manager
Drops startup file
Reads user/profile data of web browsers
Renames multiple (2048) files with added filename extension
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
854e5f77f788bbbe6e224195e115c749172cd12302afca370d4f9e3d53d005fd
MD5 hash:
9a7c0adedc4c68760e49274700218507
SHA1 hash:
77b294117cb818df701f03dc8be39ed9a361a038
Detections:
ContiRansomware
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: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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 (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW |
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