MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 45a470f4e0156015e0e7feeffdcaf87979bf9525d350d85bd97c223d9f007b96. 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: | 45a470f4e0156015e0e7feeffdcaf87979bf9525d350d85bd97c223d9f007b96 |
|---|---|
| SHA3-384 hash: | 6b96f028e2b1173b0fb15df7c95b342e68a91969c57f5b83ede885cb4d19ad5e8d9b99f9b16a1dee221606727dc26060 |
| SHA1 hash: | 0512e31f8b394e980b4d3031476781757753d43a |
| MD5 hash: | 67c620efd97ba554777c357882fa1c1e |
| humanhash: | uncle-nuts-lamp-six |
| File name: | 45a470f4e0156015e0e7feeffdcaf87979bf9525d350d85bd97c223d9f007b96 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 662'651 bytes |
| First seen: | 2026-05-08 13:10:14 UTC |
| Last seen: | 2026-06-08 09:01:33 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 46ce5c12b293febbeb513b196aa7f843 (47 x GuLoader, 21 x RemcosRAT, 15 x AgentTesla) |
| ssdeep | 12288:0X4jwQq23qFUIEy0ldirKsMPnK1tlFbEnS47G8+hjKAyCx2a9xfaeqf/MA9IhJiX:u4jwQqoqFUndtnK1xbEv7LBhCcSx9qRF |
| Threatray | 2'504 similar samples on MalwareBazaar |
| TLSH | T16DE423013380EEF9F92687F76D71CE77A469B83C8255497773807F1ABCA18A11938297 |
| 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 | b63439b069f0d89e (2 x GuLoader, 1 x AgentTesla) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
115
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
GuLoader
a c2 URL, a useragent string, and a string XOR key
GuLoader
an XOR decryption key and an extracted component
NSIS
extracted archive contents
Malware family:
n/a
ID:
1
File name:
_45a470f4e0156015e0e7feeffdcaf87979bf9525d350d85bd97c223d9f007b96.exe
Verdict:
Malicious activity
Analysis date:
2026-05-08 13:19:12 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Searching for the window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Connection attempt to an infection source
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:
2026-04-14T04:58:00Z UTC
Last seen:
2026-05-10T06:33:00Z UTC
Hits:
~1000
Detections:
HEUR:Backdoor.Win32.Androm.gen Trojan.Win32.GuLoader.sb Trojan.Makoob.HTTP.C&C PDM:Trojan.Win32.Generic VHO:Backdoor.Win32.Androm.wcqa Trojan.NSIS.Makoob.sba Backdoor.Win32.Androm.wcqa Trojan.NSIS.Pakes.Krynis.sb Trojan-PSW.Agensla.TCP.C&C Backdoor.Androm.HTTP.Download Trojan-Downloader.Win32.Minix.sb Packed.NSIS.Krynis.sb
Verdict:
Unknown
Score:
92%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.GULOADER
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2026-04-14 08:09:06 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 36 (61.11%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'494 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
discovery
Behaviour
Suspicious behavior: MapViewOfSection
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 NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Unpacked files
SH256 hash:
45a470f4e0156015e0e7feeffdcaf87979bf9525d350d85bd97c223d9f007b96
MD5 hash:
67c620efd97ba554777c357882fa1c1e
SHA1 hash:
0512e31f8b394e980b4d3031476781757753d43a
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
SH256 hash:
b1350f487692057c8ffde75dcc55287a52a3272240d4d4912f24464b27551fc0
MD5 hash:
8f0e7415f33843431df308bb8e06af81
SHA1 hash:
1314272e6ad3be1985d4a1607b890a34b0bde8b5
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: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| 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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