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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9. 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


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9
SHA3-384 hash: 5bbe6f542aef1b99bc03678172729a95eafdadb5ff83844bdfb7b2bc31e2c3bc07b078634c7b80d1155aa3e43f49947d
SHA1 hash: b9ebb0edd28e92a0b79c7ee1bc814f39b9a135da
MD5 hash: 02c94e2469eda4b383a97f53efdcf83f
humanhash: aspen-bacon-venus-enemy
File name:f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9
Download: download sample
Signature GuLoader
Create hunting rule
File size:660'592 bytes
First seen:2025-12-08 15:55:20 UTC
Last seen:2026-01-09 15:13:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7eae418c7423834ffc3d79b4300bd6fb (66 x GuLoader, 23 x RemcosRAT, 21 x AgentTesla)
ssdeep 12288:DGzMtp481/xdghmmOsyFrzRob9Mk/LmjtG/:DGzMtp48Ldg8wUXRo9MIJ/
Threatray 2'393 similar samples on MalwareBazaar
TLSH T1E3E4F143B648E1C5EC12AE71462529B3066AFE393E6AD5037B50B3FE75B35027C2728D
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 209cdcd8d8e0f060 (4 x VIPKeylogger, 2 x GuLoader, 1 x PhantomStealer)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:katedralskolers
Issuer:katedralskolers
Algorithm:sha256WithRSAEncryption
Valid from:2025-11-19T02:41:01Z
Valid to:2026-11-19T02:41:01Z
Serial number: 64b7f09d8675e56a72b73613020c160d4009598c
Thumbprint Algorithm:SHA256
Thumbprint: 1afbbcc0a0d0101ef72ebda884effcdf4d599ea1af945ca7d32ee5e77ce284ae
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
HU HU
Vendor 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
Link:
https://research.acce.ciphertechsolutions.com/results/23eb7e83-585a-40af-9cad-018ac736a273/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
ΠΑΡΑΓΓΕΛΙΑ.eml
Verdict:
Malicious activity
Analysis date:
2025-11-25 14:12:24 UTC
Tags:
attachments attc-unc susp-attachments arch-exec formbook stealer xloader
Link:
https://app.any.run/tasks/c0d3b74b-f96b-4de8-bba1-7fea7d0f013f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/43746/
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6925d019587b4206e7f2cccc
Tags:
shellcode virus blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file in the Windows subdirectories
Delayed reading of the file
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-25T07:57:00Z UTC
Last seen:
2025-12-10T14:34:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9/results?tab=lookup
Gathering data
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/02c94e2469eda4b383a97f53efdcf83f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-11-25 11:52:03 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6rszf7gn72dupc72gpkrdg5iuuwoct4lnpgyvttg6c34w6inpdmq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
2be5b104a63deb6addd9d49ffea10cfbefc8c214c2578f4554b6272ca3856899
GuLoader
4d69e1c88a9ca803fd7f02395dc2f3a737c32a13fe6ee801cb908fb075cd0e86
GuLoader
551863be2e92aa2d319a92cda72bc2123233ee3a7e965ee691fd70d88c21d772
GuLoader
5dfcdc1c491fbf2f7f2fbac6bbf27b84be652583b66b252c46e8ed86577c3c60
GuLoader
67fd31f9b85ca5e31e0851c8a5f8f2f36343d884aa3dd7f26d4aa6c5d02b28fe
GuLoader
71af76a68f5c3d9ca797c01373736b9d977234d30a767041c6886158be16c6a1
GuLoader
a509d90eaa00df8640c180439726fc0ed487dc30d236e19d1fc1514782e23671
GuLoader
b5d44eb79bb60df60b30f4157e958cb1a84c6ed93f2fb3767e96c573c27092e4
GuLoader
dd6d8363c2761f77948a54be192dbbe563d2da9dd8f922102547631ccbd05ebb
GuLoader
error
GuLoader
f273a1e122ed786626aa22fa45941da4f179fb7acc15a268749799f5137fa5c4
GuLoader
+ 2'383 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251208-tc7hcafy9d/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/61c7ffd5-df00-430f-bd98-745d9240f16a
Unpacked files
SH256 hash:
f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9
MD5 hash:
02c94e2469eda4b383a97f53efdcf83f
SHA1 hash:
b9ebb0edd28e92a0b79c7ee1bc814f39b9a135da
Link:
https://www.unpac.me/results/0b872e90-fa0b-4c10-b987-177a45511028/
SH256 hash:
20e642707ef82852bcf153254cb94b629b93ee89a8e8a03f838eef6cbb493319
MD5 hash:
109b201717ab5ef9b5628a9f3efef36f
SHA1 hash:
98db1f0cc5f110438a02015b722778af84d50ea7
Link:
https://www.unpac.me/results/0b872e90-fa0b-4c10-b987-177a45511028/
SH256 hash:
6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
MD5 hash:
8cf2ac271d7679b1d68eefc1ae0c5618
SHA1 hash:
7cc1caaa747ee16dc894a600a4256f64fa65a9b8
Link:
https://www.unpac.me/results/0b872e90-fa0b-4c10-b987-177a45511028/
SH256 hash:
c5ba017732597a82f695b084d1aa7fe3b356168cc66105b9392a9c5b06be5188
MD5 hash:
ec9640b70e07141febbe2cd4cc42510f
SHA1 hash:
64a5e4b90e5fe62aa40e7ac9e16342ed066f0306
Link:
https://www.unpac.me/results/0b872e90-fa0b-4c10-b987-177a45511028/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.58
Link:
https://yomi.yoroi.company/submissions/f46592fccdfe87478bfa33d5119ba8a52ce14f8b6bcd8ace66f0b7cb790d78d9

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
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/43746/

Comments