MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 dfe21021c3e6c809c779c2f12e590d8da42b0e9b3f96b1e900046f1f31b3c995. 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: 14
| SHA256 hash: | dfe21021c3e6c809c779c2f12e590d8da42b0e9b3f96b1e900046f1f31b3c995 |
|---|---|
| SHA3-384 hash: | 5bdab59674e88d70a53892c703e448b4665fe4b8658cb1a979437f4e54e6a9cab338e4a74b6d9f343b2a4cbf2aaba3ce |
| SHA1 hash: | b25637498f7843507ba791c5f2fdbe08839d0be0 |
| MD5 hash: | 4f07bf2a384031c4c673c7b68590efc1 |
| humanhash: | uranus-lion-venus-oxygen |
| File name: | dfe21021c3e6c809c779c2f12e590d8da42b0e9b3f96b1e900046f1f31b3c995 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 549'088 bytes |
| First seen: | 2025-10-09 14:23:45 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7eae418c7423834ffc3d79b4300bd6fb (66 x GuLoader, 23 x RemcosRAT, 21 x AgentTesla) |
| ssdeep | 12288:mg/1vpckVuCdImLRnqVlL44SmiYO95gN0bHYs2e6k/9f0:mgdvpPVuiRnmgYOAOYsv/9f0 |
| Threatray | 1'895 similar samples on MalwareBazaar |
| TLSH | T154C423D1A2A0C437CA377AB07D3E5B648DF21B21695C9D4B0B701E6DFA51B0BCA0E256 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.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 signed |
Code Signing Certificate
| Organisation: | Juncaginaceae |
|---|---|
| Issuer: | Juncaginaceae |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-09-15T03:14:56Z |
| Valid to: | 2026-09-15T03:14:56Z |
| Serial number: | 4106e04311f32c7dac3fe1c6ca20ad955c0031e7 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 9a66eb29766a21a6a8fef327aaf684a180ba8055e6acd5ac92d4a25db6b910aa |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
73
Origin country :
HUVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
dfe21021c3e6c809c779c2f12e590d8da42b0e9b3f96b1e900046f1f31b3c995.exe
Verdict:
Malicious activity
Analysis date:
2025-10-09 15:11:35 UTC
Tags:
remcos rat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
injection obfusc virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Searching for the window
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole guloader installer microsoft_visual_cc nsis overlay signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-22T01:07:00Z UTC
Last seen:
2025-10-09T06:32:00Z UTC
Hits:
~10000
Verdict:
Suspicious
Score:
98%
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
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-09-22 04:13:23 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
21 of 36 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 1'885 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:guloader family:remcos discovery downloader persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.116.93:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
dfe21021c3e6c809c779c2f12e590d8da42b0e9b3f96b1e900046f1f31b3c995
MD5 hash:
4f07bf2a384031c4c673c7b68590efc1
SHA1 hash:
b25637498f7843507ba791c5f2fdbe08839d0be0
SH256 hash:
3ce71b27cf12317960b66b519e6855f0e8d67cae6cd7e38b0c7eda57363d054e
MD5 hash:
0ad6fdbe9835fcd6ce600dd8d57e9015
SHA1 hash:
33aed9fc04defa28e724e28a6a59ee664dac6778
SH256 hash:
d88138801827f4e8bcc2f3e4525b6b42d8ca59bf26638ecde8530fe39c3e8091
MD5 hash:
3e345c5ea7e7def8826717b5cd73c21f
SHA1 hash:
91f8c081514bf2f672246a98cbae9913bb173449
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: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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