MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1f699db45e66e2a2d404231be31e51d3a6d390a73beaeac4401de6866397dc4a. 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: 10
| SHA256 hash: | 1f699db45e66e2a2d404231be31e51d3a6d390a73beaeac4401de6866397dc4a |
|---|---|
| SHA3-384 hash: | ac899c3042a99d852c586ee2e127163990e9ae2dcde47d8c8318825e6008f4ea71b8c8b425b7a57f7fe392c12a6d6873 |
| SHA1 hash: | bed104a086f69d9fd7b69f6b7f1797b18a26c862 |
| MD5 hash: | a16767a43943bc4c2e25d69ca4ca68b7 |
| humanhash: | coffee-nebraska-rugby-hotel |
| File name: | 1f699db45e66e2a2d404231be31e51d3a6d390a73beaeac4401de6866397dc4a |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 412'744 bytes |
| First seen: | 2026-08-10 14:04:45 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (592 x GuLoader, 130 x RemcosRAT, 84 x EpsilonStealer) |
| ssdeep | 6144:omGIhCrl0WKxHId8CWoWZGipPIR3oRsu22KqEWriKUofF9a5q56zX:Pm0NxodvEYuu3o82KoriKUC8qE |
| TLSH | T1DB94CF83FA80D6AAFC3D4875D9A352700B72AEB596854F4353D879123FB22C0753B52E |
| 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 | da9a9adaf8f8f8f8 (5 x AgentTesla, 2 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Compacters |
|---|---|
| Issuer: | Compacters |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-05-17T00:27:58Z |
| Valid to: | 2027-05-17T00:27:58Z |
| Serial number: | 6f27e3ce0a22ba0f60ba4b662096d2fa45e2edde |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | ea51721701bf34b5faea32fe18e39378b664a9fe51b468e86ada272a9cba0338 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
59
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
Detection:
n/a
Result
Verdict:
Suspicious
Maliciousness:
Behaviour
Launching a service
Changing a file
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 guloader installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-08T09:15:00Z UTC
Last seen:
2026-08-11T12:12:00Z UTC
Hits:
~1000
Verdict:
Unknown
Score:
91%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2026-07-17 17:10:50 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
13 of 30 (43.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
1f699db45e66e2a2d404231be31e51d3a6d390a73beaeac4401de6866397dc4a
MD5 hash:
a16767a43943bc4c2e25d69ca4ca68b7
SHA1 hash:
bed104a086f69d9fd7b69f6b7f1797b18a26c862
SH256 hash:
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 hash:
0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 hash:
48df0911f0484cbe2a8cdd5362140b63c41ee457
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
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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