MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f533a930e018e02362e7c0827c4988090c561a392ffca007885bbbeb5609cc2a. 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: 13
| SHA256 hash: | f533a930e018e02362e7c0827c4988090c561a392ffca007885bbbeb5609cc2a |
|---|---|
| SHA3-384 hash: | c53b9dc83cf930f235e7284c88e899ff4978190045d826f170c71b23d7744cba162f210194765c54b716e8944c972b3a |
| SHA1 hash: | 0245e4ccfc510506dfc813f09dadb7f6f37561c9 |
| MD5 hash: | 03d17489ac08d1aa708aa00e7921b81d |
| humanhash: | indigo-kitten-august-edward |
| File name: | f533a930e018e02362e7c0827c4988090c561a392ffca007885bbbeb5609cc2a |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'249'731 bytes |
| First seen: | 2026-05-08 13:07:14 UTC |
| Last seen: | 2026-06-08 08:59:45 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e2f3f8ec66b7e1900c37978aca89d3c5 (24 x GuLoader, 6 x RemcosRAT, 4 x AgentTesla) |
| ssdeep | 24576:05MLZEsZ4ALbzeo8EK+Up703oz/zEttuPu7XIdriGcxJ9Ag:ZLZEsZ4AWERc44z/zEt4E4xiGmCg |
| TLSH | T1764533621974DDEFCEF603B095FB4555A9B9CE20C549FABF2B94720E290D3A1487B023 |
| 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 | c4dadadad2f492c2 (148 x GuLoader, 51 x RemcosRAT, 23 x VIPKeylogger) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
113
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
n/a
ID:
1
File name:
f533a930e018e02362e7c0827c4988090c561a392ffca007885bbbeb5609cc2a
Verdict:
Suspicious activity
Analysis date:
2026-05-07 14:14:14 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Detection(s):
Gathering data
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Launching a service
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
Changing a file
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint installer installer installer-heuristic microsoft_visual_cc nsis similar-threat soft-404
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-13T09:04:00Z UTC
Last seen:
2026-05-06T08:49:00Z UTC
Hits:
~100
Verdict:
Suspicious
Score:
97%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2026-04-13 12:05:08 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
20 of 36 (55.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader installer
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
f533a930e018e02362e7c0827c4988090c561a392ffca007885bbbeb5609cc2a
MD5 hash:
03d17489ac08d1aa708aa00e7921b81d
SHA1 hash:
0245e4ccfc510506dfc813f09dadb7f6f37561c9
SH256 hash:
a44ca08afb3f6bafd76aa35c259f3d599fe34f6f49ea5118626c1c1a540b0f03
MD5 hash:
81e268e27dbbcadbf116b5a9402195ab
SHA1 hash:
bd2b701b2e5e279786e179bceee2dc132a2afc37
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| 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: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
| Rule name: | TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments |
| Reference: | https://cyfare.net/ |
| 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. |
| Rule name: | Win_FakeInstaller_PythonShellcodeLoader_Crepectl_2026 |
|---|---|
| Author: | SixHands |
| Description: | Detects the analyzed fake installer sample using .key config, XOR key, and Python/fiber shellcode loader traits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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