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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71
SHA3-384 hash: e344ce90b494f4e09c340f37a6372890e3980787e6c484a9ef440c53177d32c0bcf37d96d0ca8af5e1099e818d0aa246
SHA1 hash: 65fd168a2a336157f34fa3f76b0a071461537841
MD5 hash: 427d65ddb0870c8a703aaa05eb2a29c3
humanhash: four-skylark-mockingbird-grey
File name:herman00102720262710.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:87'854 bytes
First seen:2026-10-27 13:46:41 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:SrZOfm/5tTOF4jVU+k0Ve8In3m8EANJq9oL2mdedIqUdKbjl8jny:hmxtSKjVUn8IvJS1QedIq/b8y
TLSH T1628328A0CA0185778F87AB9CACA54660C6ACC325C52345F0F9E8C70E9509DECF77D66B
Magika javascript
Reporter abuse_ch
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
161
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ae0ab7e3a56bbccb37bf2f4
Tags:
n/a
Gathering data
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71
Verdict:
Malicious
File Type:
js
First seen:
2026-10-27T06:01:00Z UTC
Last seen:
2026-10-29T04:41:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1992914
Signature
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript file contains Antivirus product strings
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
Powershell connects to network
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, 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 harvest and steal browser information (history, passwords, etc)
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 GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1992914 Sample: herman00102720262710.js Startdate: 27/10/2026 Architecture: WINDOWS Score: 100 34 zumvu.net 2->34 36 ip-api.com 2->36 48 Suricata IDS alerts for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Yara detected GuLoader 2->52 54 4 other signatures 2->54 10 wscript.exe 1 2->10         started        signatures3 process4 signatures5 66 Wscript starts Powershell (via cmd or directly) 10->66 68 Obfuscated command line found 10->68 70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->70 72 2 other signatures 10->72 13 cmd.exe 1 10->13         started        process6 signatures7 74 Wscript starts Powershell (via cmd or directly) 13->74 16 powershell.exe 1 206 13->16         started        20 conhost.exe 13->20         started        22 cmd.exe 1 13->22         started        process8 dnsIp9 32 zumvu.net 66.96.84.154, 443, 49723, 49725 HVC-AS-HIVELOCITYIncUS Netherlands 16->32 40 Writes to foreign memory regions 16->40 42 Found suspicious powershell code related to unpacking or dynamic code loading 16->42 44 Switches to a custom stack to bypass stack traces 16->44 46 Powershell connects to network 16->46 24 backgroundTaskHost.exe 16->24         started        27 backgroundTaskHost.exe 15 8 16->27         started        signatures10 process11 dnsIp12 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->56 58 Unusual module load detection (module proxying) 24->58 60 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 24->60 38 ip-api.com 208.95.112.1, 49726, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 27->38 62 Tries to steal Mail credentials (via file / registry access) 27->62 64 Tries to harvest and steal browser information (history, passwords, etc) 27->64 30 backgroundTaskHost.exe 27->30         started        signatures13 process14
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Javascript T1059.007
Link:
https://app.malva.re/file/427d65ddb0870c8a703aaa05eb2a29c3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71/
Threat name:
Script-JS.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2026-10-27 12:24:53 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i4rx6jhlbqy2kowrd756a5qsifhor37qwh35bp57o552kk4htryq._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/261027-q3rm2a118j/
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
Reads the TCP/IP host and domain name from the registry
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:
Suspicious File
Score:
0.60
Link:
https://yomi.yoroi.company/submissions/47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71

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:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
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