MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e. 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 4 File information Comments
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SHA256 hash: f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e
SHA3-384 hash: 10dcd28655e72eabc0ca857193940795af8c01457a87f1eb6656ff26f9f0ec7af30da66b042bcd1150cc19f462fb786c
SHA1 hash: cb2da5677b650a554a89dda3b65d8107e28013a2
MD5 hash: 2cb69abed9d824a2d7e65bac470e7c42
humanhash: green-kilo-sweet-queen
File name:KH9876545678900.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:415'984 bytes
First seen:2026-07-23 09:38:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (253 x GuLoader, 32 x RemcosRAT, 26 x VIPKeylogger)
ssdeep 6144:Cwq3Nplp8rtzZ3vxjmMAQFEY86jgGf5LYR1tQ73cnfU71437A2M+TRwyCUP8g++C:CzhufPAgEYFV33yl+sg1hfzzoo
TLSH T15494B0523D0CA5DBEE3D2373196685862FF4787A4B92169F7AABF25648023034E1FD1C
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 3b3ffd7d7f5e587f (2 x PhantomStealer, 1 x AsyncRAT, 1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Resnatch
Issuer:Resnatch
Algorithm:sha256WithRSAEncryption
Valid from:2026-06-26T03:21:10Z
Valid to:2027-06-26T03:21:10Z
Serial number: 1766dbeff06b9b0bdacaf4f5c63f34dd564ba017
Thumbprint Algorithm:SHA256
Thumbprint: eb82ebfefa461953ce1847a69c7fefef1fff8e11f1908e5cddd881d43183da4e
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
214
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e36f43e6-9360-4fec-8c1a-019561ea572f/
Malware family:
n/a
ID:
1
File name:
GuLoader.exe
Verdict:
Malicious activity
Analysis date:
2026-07-23 10:39:03 UTC
Tags:
xworm remote auto generic
Link:
https://app.any.run/tasks/c9e1cb30-3ab6-468a-a2c8-06f4858f252c

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/75782/
Detection(s):
SecuriteInfo.com.FileRepMalware.78177822.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Searching for the window
Launching a service
Unauthorized injection to a recently created process
Restart of the analyzed sample
Changing a file
Sending an HTTP GET request to an infection source
Сreating synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 installer installer microsoft_visual_cc nsis signed
Link:
https://www.filescan.io/uploads/6a61e156c2f3b2a5e45eb1a8/reports/0ef854ae-9a40-4b93-b260-85af48447194/overview
Verdict:
Malicious
Labled as:
VHO:Trojan.Makoob.gen
Link:
https://www.hybrid-analysis.com/sample/f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-23T02:39:00Z UTC
Last seen:
2026-07-23T06:04:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e/results?tab=lookup
Malware family:
NSIS
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/26b3aad5-a065-42e7-9b55-e095a89d925d
Result
Threat name:
GuLoader, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1946993
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected malicious Powershell script
AI detected suspicious PE / MSI digital signature
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Encrypted powershell cmdline option found
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Yara detected GuLoader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1946993 Sample: KH9876545678900.exe Startdate: 23/07/2026 Architecture: WINDOWS Score: 100 92 www.google.com 2->92 94 pki-goog.l.google.com 2->94 96 7 other IPs or domains 2->96 106 Suricata IDS alerts for network traffic 2->106 108 Antivirus detection for dropped file 2->108 110 Multi AV Scanner detection for dropped file 2->110 112 12 other signatures 2->112 12 KH9876545678900.exe 3 29 2->12         started        signatures3 process4 file5 86 C:\Users\user\AppData\Local\...\System.dll, PE32 12->86 dropped 116 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->116 118 Encrypted powershell cmdline option found 12->118 120 Bypasses PowerShell execution policy 12->120 122 4 other signatures 12->122 16 KH9876545678900.exe 2 16 12->16         started        21 KH9876545678900.exe 12->21         started        signatures6 process7 dnsIp8 88 217.217.97.75, 4445, 49745 WINDSTREAM-WindstreamCommunicationsLLCUS China 16->88 90 192.3.136.217, 49744, 80 AS-COLOCROSSING-HostPapaUS United States 16->90 66 C:\Users\user\AppData\...\n1t4tqxtgk4.exe, PE32+ 16->66 dropped 68 C:\Users\user\...\Intercolumnation.exe, PE32 16->68 dropped 70 C:\Users\user\AppData\...\qmyumcyym5j.ps1, ASCII 16->70 dropped 100 Encrypted powershell cmdline option found 16->100 102 Found direct / indirect Syscall (likely to bypass EDR) 16->102 23 powershell.exe 25 16->23         started        26 KH9876545678900.exe 16->26         started        29 csc.exe 4 16->29         started        31 2 other processes 16->31 file9 signatures10 process11 file12 82 C:\Users\user\AppData\...\zdpxxgir.cmdline, Unicode 23->82 dropped 33 n1t4tqxtgk4.exe 23->33         started        37 csc.exe 3 23->37         started        39 conhost.exe 23->39         started        114 Antivirus detection for dropped file 26->114 84 C:\Users\user\AppData\...\KH9876545678900.exe, PE32 29->84 dropped 41 conhost.exe 29->41         started        43 cvtres.exe 1 29->43         started        45 conhost.exe 31->45         started        47 cvtres.exe 1 31->47         started        signatures13 process14 file15 72 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 33->72 dropped 74 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32+ 33->74 dropped 76 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 33->76 dropped 80 58 other malicious files 33->80 dropped 104 Multi AV Scanner detection for dropped file 33->104 49 n1t4tqxtgk4.exe 33->49         started        78 C:\Users\user\AppData\Local\...\zdpxxgir.dll, PE32 37->78 dropped 52 cvtres.exe 37->52         started        signatures16 process17 signatures18 98 Tries to harvest and steal browser information (history, passwords, etc) 49->98 54 taskkill.exe 49->54         started        56 taskkill.exe 49->56         started        58 taskkill.exe 49->58         started        process19 process20 60 conhost.exe 54->60         started        62 conhost.exe 56->62         started        64 conhost.exe 58->64         started       
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Suspicious
First seen:
2026-07-23 06:03:18 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6mdpsx2ktofv64eogskgkykmm7ws4yfbh4wsr37py76hrqrd4upa._file
Verdict:
malicious
Label(s):
CloudEyE
Create hunting rule
Link:
https://reports.threatray.com/9b65b02a-1da1-40e0-ad0e-b02bb569d275
Similar samples:
0cb6636748ff6a60ebf1a4644a7b4c877f8a19edd8c7a2eac10b34d1bd7cbfbf
GuLoader
199bd66bf9f7b299ebf9068feb2e8648404097e26f86cabc5462973769d24df5
GuLoader
238864be2d731bc5838b95c8bb50b961d19f04b6b64d3daf323db967266fa458
GuLoader
29032ae14e315863a55a0851c3e1c9cb246beb4513a279d8b1bf7fac97be6ff7
GuLoader
482f10e5f1825368c6cdacf482febf39ed6d035ce866aded813d18890cf86dca
GuLoader
79866667d5cd578a1c6eda54a748ff9d316fff39064eecd282bc2a9ad8a5ac7d
GuLoader
8eaffa403a0bacae0e43928c07f77ea8540b480eda49e10d4a44079b8e0236fe
GuLoader
c92b8de7afab714c39ef49e954887a849f7e0e73c1e916ca20c5db06477551af
GuLoader
ea3c63e01dc18acb8940dbbe5bec6c3cdcb6c117b6a213b9e7e02c11caeabee0
GuLoader
f2a42302b9c4f3e6c1e2e5d15dfa09cb41aad80ebc13678c4a412f77d4141ca0
GuLoader
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm collection discovery persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260723-lmxrwsvemb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
217.217.97.75:4445
Unpacked files
SH256 hash:
f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e
MD5 hash:
2cb69abed9d824a2d7e65bac470e7c42
SHA1 hash:
cb2da5677b650a554a89dda3b65d8107e28013a2
Link:
https://www.unpac.me/results/1286523a-9111-4e84-994a-d5d2e93a019d/
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
Link:
https://www.unpac.me/results/1286523a-9111-4e84-994a-d5d2e93a019d/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f306f95f4a9b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
Link:
https://yomi.yoroi.company/submissions/f306f95f4a9b8b5f708e349465614c67ed2e60a13f2d28efefc7fc78c223e51e

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:NSIS
Create hunting rule
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:VECT_Ransomware
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/75782/

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