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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1
SHA3-384 hash: 4b2ae1a0308ad5673862f6ca7801e0dd9378d6fabd4919476de76ea7d6791fe59937a7adb1772ceeab7e55e3dc11d870
SHA1 hash: b7a9e8f6756befe17913336ec348180b9e534def
MD5 hash: 66342c2371c1c4319dceae6ee57988c7
humanhash: paris-mobile-london-item
File name:2026年9月 残業登録リスト.vbe
Download: download sample
Signature GuLoader
Create hunting rule
File size:61'301 bytes
First seen:2026-09-14 07:17:41 UTC
Last seen:Never
File type:Visual Basic Script (vbe) vbe
MIME type:text/plain
ssdeep 768:HsYHvP1tCqyKI9ttsOdyVh0nkiMBhWmSgHvVHPrGdy8PRBISh9GOLwcmsC9YKe:Hs49XI1say/0knhWmhH+yWRSSfZ8P3Y1
TLSH T1C5536C65EE540A6A0E5E376AFC416D42CD7CC318552780B8FFDC538D640B9ACE3BE219
Magika vba
Reporter abuse_ch
Tags:GuLoader vbe

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ac9e5d88067a5ebf88d9230
Tags:
stration shell sage
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6aa79fc4414a01b2cdb0b619/reports/d070958a-4026-4adf-97d8-7586b39501d5/overview
Verdict:
Suspicious
Labled as:
VBS/Agent.CJZ2
Link:
https://www.hybrid-analysis.com/sample/59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1
Verdict:
Malicious
File Type:
vbs
First seen:
2026-09-13T21:28:00Z UTC
Last seen:
2026-09-16T03:10:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1972550
Signature
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972550 Sample: 2026#U5e749#U6708 #U6b8b#U6... Startdate: 14/09/2026 Architecture: WINDOWS Score: 96 27 drive.usercontent.google.com 2->27 29 drive.google.com 2->29 41 Malicious sample detected (through community Yara rule) 2->41 43 Yara detected GuLoader 2->43 45 Sigma detected: WScript or CScript Dropper 2->45 47 Joe Sandbox ML detected suspicious sample 2->47 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 49 Wscript starts Powershell (via cmd or directly) 9->49 51 Obfuscated command line found 9->51 53 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->53 55 2 other signatures 9->55 12 cmd.exe 1 9->12         started        process6 signatures7 57 Wscript starts Powershell (via cmd or directly) 12->57 15 powershell.exe 1 16 12->15         started        19 conhost.exe 12->19         started        21 cmd.exe 1 12->21         started        process8 dnsIp9 31 drive.usercontent.google.com 142.251.210.129, 443, 49715 GOOGLE-GoogleLLCUS United States 15->31 33 drive.google.com 142.251.210.142, 443, 49714 GOOGLE-GoogleLLCUS United States 15->33 35 Writes to foreign memory regions 15->35 37 Found suspicious powershell code related to unpacking or dynamic code loading 15->37 39 Switches to a custom stack to bypass stack traces 15->39 23 backgroundTaskHost.exe 15->23         started        25 backgroundTaskHost.exe 15->25         started        signatures10 process11
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1
Verdict:
Malware
YARA:
1 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated SOS: 0.34 T1027 T1059.005 VBScript WScript.Shell
Link:
https://app.malva.re/file/66342c2371c1c4319dceae6ee57988c7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1/
Threat name:
Script-WScript.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-09-14 01:07:14 UTC
File Type:
Text (VBS)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lgzfvxmyec64kwbut5kseowt4lxwbyxw7a637hjcobegchcav3qq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader execution
Link:
https://tria.ge/reports/260914-h45maawcnc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Checks computer location settings
Badlisted process makes network request
Family: Guloader,Cloudeye
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/59b25add9820bdc558349f55223ad3e2ef60e2f6f83dbf9d227048611c40aee1

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:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique
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