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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a76d571cc8147bc9ecb5612eac9f48f31bc6c3807469094d08df8b571bfa949. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: 9a76d571cc8147bc9ecb5612eac9f48f31bc6c3807469094d08df8b571bfa949
SHA3-384 hash: 55e17c72726713f106e7330fca6e27c1934adb6c9d09521fe8e6d01c6dcb6c5410cffbdc56111284e89bb10236fc014c
SHA1 hash: 48081198cf33d9ca45353f86a7f540b9a882c208
MD5 hash: 3e385a1d3fce0191cad369f7d908e7f8
humanhash: zebra-floor-nineteen-emma
File name:Unseaworthy.exe
Download: download sample
Signature GuLoader
File size:817'330 bytes
First seen:2026-05-05 15:31:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 46ce5c12b293febbeb513b196aa7f843 (48 x GuLoader, 21 x RemcosRAT, 15 x AgentTesla)
ssdeep 24576:g4LcenKjoaZFlqFGhjUias5SFVJUynYAlpj:NY9oOSEW0SFJhlpj
Threatray 2'372 similar samples on MalwareBazaar
TLSH T1230501E6B649C427C4724277CDB6DAF766A12C58FE02110373D0BF1F343B585AA6A60B
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 c0d0c6ceecd4f118 (3 x GuLoader, 2 x RemcosRAT)
Reporter James_inthe_box
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
1
# of downloads :
195
Origin country :
US US
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
Malware family:
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-05-05 15:32:11 UTC
Tags:
rat remcos remote stealer mpress

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending a custom TCP request
DNS request
Connection attempt
Sending an HTTP GET request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive fingerprint installer installer installer-heuristic microsoft_visual_cc nsis
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-05T12:08:00Z UTC
Last seen:
2026-05-07T12:37:00Z UTC
Hits:
~100
Detections:
Backdoor.Win32.Remcos.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba Trojan-Downloader.Win32.Minix.sb Trojan.NSIS.Makoob.sx
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:
2026-05-04 19:06:16 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost defense_evasion discovery downloader rat spyware stealer trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Reads user/profile data of web browsers
Family: Guloader,Cloudeye
Family: Remcos
UAC bypass
Malware Config
C2 Extraction:
45.9.168.219:2404
Unpacked files
SH256 hash:
9a76d571cc8147bc9ecb5612eac9f48f31bc6c3807469094d08df8b571bfa949
MD5 hash:
3e385a1d3fce0191cad369f7d908e7f8
SHA1 hash:
48081198cf33d9ca45353f86a7f540b9a882c208
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
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: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.

Comments