MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfd5919b1f3d3add639bd324514c39f3807f93bbd75eb8efd576c72d26eea1bf. 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



PureRAT


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: cfd5919b1f3d3add639bd324514c39f3807f93bbd75eb8efd576c72d26eea1bf
SHA3-384 hash: 22dd6efda1a31704314d60a2072e5aed52e09bfd049c276fafd04d3f2ad74df54820325d13d7bb15da04f1435636b459
SHA1 hash: f8715cf08dfd25ac10accf8f8d930d9cfbb606ce
MD5 hash: 861a9b7ff7e91010cf002fb2b669bf1c
humanhash: stream-table-arkansas-november
File name:861a9b7ff7e91010cf002fb2b669bf1c.exe
Download: download sample
Signature PureRAT
File size:813'800 bytes
First seen:2026-08-08 17:12:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 573bb7b41bc641bd95c0f5eec13c233b (62 x GuLoader, 31 x RemcosRAT, 27 x AgentTesla)
ssdeep 12288:u++ri4BlgZomk0cuS1RhLsySWmFN0x1gVwY4pSU5HTRcMQK:u+31omcjay3qNZutAU/c7K
TLSH T10F05272A2EBA4E89F6E1D034D55F82713271ED4B091A2C5B21D63E6C343ED5DC4C9A3E
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 70f1f0f0f9f1cc28 (1 x PureRAT)
Reporter abuse_ch
Tags:exe PureHVNC PureRAT RAT signed

Code Signing Certificate

Organisation:Mortificeres
Issuer:Mortificeres
Algorithm:sha256WithRSAEncryption
Valid from:2026-07-26T10:28:45Z
Valid to:2027-07-26T10:28:45Z
Serial number: 524e95d439175fc684dd0313cfe9ae04e81d9839
Thumbprint Algorithm:SHA256
Thumbprint: bd305e5de5a0518f167a1bf562d7e053f4254fa56404d4aa965c440ac1ab405b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
161
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-08 17:29:49 UTC
Tags:
rat stealer netreactor

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
Searching for the window
Creating a file
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-05T07:54:00Z UTC
Last seen:
2026-08-10T03:18:00Z UTC
Hits:
~100
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE / MSI digital signature
Creates an undocumented autostart registry key
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal Bitcoin Wallet information
Unusual module load detection (module proxying)
Yara detected GuLoader
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Guloader
Status:
Suspicious
First seen:
2026-08-05 01:35:00 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader discovery downloader spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Loads dropped DLL
Reads user/profile data of web browsers
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
cfd5919b1f3d3add639bd324514c39f3807f93bbd75eb8efd576c72d26eea1bf
MD5 hash:
861a9b7ff7e91010cf002fb2b669bf1c
SHA1 hash:
f8715cf08dfd25ac10accf8f8d930d9cfbb606ce
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
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
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:NSIS
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information


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

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