MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f338f5aaa23e689ec4e10108c0dd257346435204b07d1a64b34d6b615c22dc50. 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: | f338f5aaa23e689ec4e10108c0dd257346435204b07d1a64b34d6b615c22dc50 |
|---|---|
| SHA3-384 hash: | 50666611cd376ebc872eda2ea93f6107fdee857c88bd6153d3366ccb65951f16a72b9aff98bbacccfe2e5ad163eb8623 |
| SHA1 hash: | f2abc6b943c024d4edf465766f9c3a5f668c2441 |
| MD5 hash: | 3f8359b0927d42743f0c3ead43c0a312 |
| humanhash: | zebra-island-timing-apart |
| File name: | f338f5aaa23e689ec4e10108c0dd257346435204b07d1a64b34d6b615c22dc50 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 261'612 bytes |
| First seen: | 2026-03-06 14:53:34 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 671f2a1f8aee14d336bab98fea93d734 (204 x GuLoader, 4 x Formbook, 4 x RemcosRAT) |
| ssdeep | 6144:kcBvWb0xvqR7SyzdOnILVkjhjtVeGTpOsUNaCtcGiDFRre:tO0xiR7SYwIRk1XeGOV0CtcBF9e |
| Threatray | 2'475 similar samples on MalwareBazaar |
| TLSH | T1234412E6B161C873E6360F301EB747B63AE7CD122589974333513F5E3E2374A962A261 |
| 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 :
1
# of downloads :
120
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Detection:
Guloader
Detection(s):
Verdict:
Malicious
Score:
93.3%
Tags:
uloader virus nsis blic
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis soft-404
Verdict:
Malicious
File Type:
exe x32
Verdict:
Unknown
Score:
99%
Verdict:
Malware
File Type:
PE
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:
Malicious
First seen:
2026-02-16 08:58:47 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
27 of 36 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'465 additional samples on MalwareBazaar
Result
Malware family:
phantom_stealer
Score:
10/10
Tags:
family:phantom_stealer discovery installer stealer
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Detects PhantomStealer written in C#
PhantomStealer
Phantom_stealer family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8401696891:AAEYs7_Ah8jc_tbgn-dZ1WL-JuSZ8alyGb8/sendMessage?chat_id=2065242915
Unpacked files
SH256 hash:
f338f5aaa23e689ec4e10108c0dd257346435204b07d1a64b34d6b615c22dc50
MD5 hash:
3f8359b0927d42743f0c3ead43c0a312
SHA1 hash:
f2abc6b943c024d4edf465766f9c3a5f668c2441
SH256 hash:
014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042
MD5 hash:
12b140583e3273ee1f65016becea58c4
SHA1 hash:
92df24d11797fefd2e1f8d29be9dfd67c56c1ada
SH256 hash:
b2699fdfdab6a018fcc972806d12f71972de1861660bb6578935d62b1da06504
MD5 hash:
3cea4c9994912d8f3c3e8b6a814e810e
SHA1 hash:
c48d34a0981d4ab576c7a3ab566f5ddb94af5d86
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: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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