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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e
SHA3-384 hash: 87e80a9897813235e16d4fd68dbcaf6dd58bffdba6c034a39121077e84f137dfaeeb505a3d6d621ac2ebf2303f5099c6
SHA1 hash: 67d37714341146d5e04606f013870d1b158e6fe7
MD5 hash: 3d5024134ce11a1847367c6fdd680a26
humanhash: cold-kansas-nineteen-hamper
File name:SMLOUVA-pdf.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:669'090 bytes
First seen:2026-09-24 13:30:38 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:+DdvQv/vKv8vnvaQ/vBw4vnvB3bfKvB3bHIvcNYv9vB3bNvMv5vB3gvHvjvB3bXr:PecAsn
TLSH T1DBE44A30E934056D4F5727A9FDA20BA68ABCC609561754F6FAE9030D21064FCE3BF768
Magika javascript
Reporter abuse_ch
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6ab5262729cc1e5601257f9a/reports/63fbf278-b5a0-455d-9c8c-016522e286aa/overview
Verdict:
Suspicious
Labled as:
JS/Agent.FBQ
Link:
https://www.hybrid-analysis.com/sample/c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e
Verdict:
Malicious
File Type:
text
First seen:
2026-09-24T07:10:00Z UTC
Last seen:
2026-09-24T10:21:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e/results?tab=lookup
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1977675
Signature
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains VNC / remote desktop functionality (version string found)
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1977675 Sample: SMLOUVA-pdf.js Startdate: 24/09/2026 Architecture: WINDOWS Score: 100 34 urbanpro.mycpanel.rs 2->34 36 smtp.hostinger.com 2->36 38 ip-api.com 2->38 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 5 other signatures 2->58 10 wscript.exe 1 2->10         started        signatures3 process4 signatures5 76 Wscript starts Powershell (via cmd or directly) 10->76 78 Obfuscated command line found 10->78 80 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->80 82 2 other signatures 10->82 13 cmd.exe 1 10->13         started        process6 signatures7 84 Wscript starts Powershell (via cmd or directly) 13->84 16 powershell.exe 1 227 13->16         started        20 conhost.exe 13->20         started        22 cmd.exe 1 13->22         started        process8 dnsIp9 32 urbanpro.mycpanel.rs 94.127.7.180, 49712, 49715, 80 SERBIA-BROADBAND-ASSerbiaBroadBand-SrpskeKablovskemrezedooRS Serbia 16->32 44 Contains VNC / remote desktop functionality (version string found) 16->44 46 Writes to foreign memory regions 16->46 48 Found suspicious powershell code related to unpacking or dynamic code loading 16->48 50 Switches to a custom stack to bypass stack traces 16->50 24 backgroundTaskHost.exe 15 8 16->24         started        28 backgroundTaskHost.exe 16->28         started        signatures10 process11 dnsIp12 40 ip-api.com 208.95.112.1, 49716, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 24->40 42 smtp.hostinger.com 172.65.255.143, 49717, 49718, 587 CLOUDFLARENET-CloudflareIncUS Canada 24->42 60 Tries to steal Mail credentials (via file / registry access) 24->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 24->62 64 Tries to harvest and steal ftp login credentials 24->64 66 Tries to harvest and steal browser information (history, passwords, etc) 24->66 30 backgroundTaskHost.exe 24->30         started        68 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 28->68 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 28->70 72 Unusual module load detection (module proxying) 28->72 74 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 28->74 signatures13 process14
Score:
95%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytorsd3i4ek3ubjf3d3j4zrhx3fdqt6lwlvgpvmjzrm5ocarwq7a._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader defense_evasion discovery downloader execution privilege_escalation
Link:
https://tria.ge/reports/260924-qshblssz7q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Badlisted process makes network request
Family: Guloader,Cloudeye
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c4dd190f68e115ba0525d8f69e6627beca384fcbb2ea67d589cc59d70811b43e

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb

File information

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

Comments