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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8. 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


RemcosRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8
SHA3-384 hash: e980d0f516721dc4af51ac27041afff27c1c2d8275f9014306865b9b2ef1f394bd0472bc6665daab5450e238de63a082
SHA1 hash: c82c2791b2b903d4fdefbb5ab5424766e655b79b
MD5 hash: b0a51d254b37ee281874dabee2a50c1b
humanhash: oklahoma-hamper-table-july
File name:Purchase Order SINO_7300194 xls.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:235'782 bytes
First seen:2026-10-23 12:29:37 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 6144:eIHwgM5K6v9LSZKzgo94lmA3vgzQP5DEQIGC43A4HJJme:DQR5DYCgo0v35wNcbJ1
TLSH T16F345C70EE2406694F471BAAFC951A62CABC8209462650F1FEDD174E60065FCE3FE36D
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/94248/
Detection(s):
SecuriteInfo.com.Script.SNH-gen.71226475.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6adb5379afb06e650cd8d6bb
Tags:
virus shell sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd evasive lolbin masquerade obfuscated
Link:
https://www.filescan.io/uploads/6adb53787393dbeb370877bf/reports/8dde72ab-4d9c-4c71-9c85-57fb891e3e3e/overview
Verdict:
Malicious
Labled as:
VBS/Agent.CJZ2
Link:
https://www.hybrid-analysis.com/sample/a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8
Verdict:
Malicious
File Type:
vbs
First seen:
2026-10-22T19:10:00Z UTC
Last seen:
2026-10-25T10:22:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1991019
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)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell connects to network
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
VBScript performs obfuscated calls to suspicious functions
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: 1991019 Sample: Purchase Order SINO_7300194... Startdate: 23/10/2026 Architecture: WINDOWS Score: 100 27 drive.usercontent.google.com 2->27 29 drive.google.com 2->29 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected GuLoader 2->47 49 3 other signatures 2->49 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 51 VBScript performs obfuscated calls to suspicious functions 9->51 53 Wscript starts Powershell (via cmd or directly) 9->53 55 Obfuscated command line found 9->55 57 3 other signatures 9->57 12 cmd.exe 1 9->12         started        process6 signatures7 59 Wscript starts Powershell (via cmd or directly) 12->59 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.google.com 142.250.98.139, 443, 49738 GOOGLE-GoogleLLCUS United States 15->31 33 drive.usercontent.google.com 172.217.165.193, 443, 49739 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 41 Powershell connects to network 15->41 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/a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8
Verdict:
Malware
YARA:
1 match(es)
Tags:
COM Behavior Trace DeObfuscated Obfuscated SOS: 0.42 T1027 T1059.005 VBScript WScript.Shell
Link:
https://app.malva.re/file/b0a51d254b37ee281874dabee2a50c1b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2026-10-23 01:15:13 UTC
File Type:
Text (VBS)
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uto4hnplj757gicrpeqzveqloly4rsnwjf74c2n2djwkjmnd37ea._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection defense_evasion discovery downloader execution privilege_escalation rat
Link:
https://tria.ge/reports/261023-ppr6zady8q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Executes a VBScript file via the Windows Script Host.
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Contacts third-party web service commonly abused for C2
Checks computer location settings
Badlisted process makes network request
Family: Guloader,Cloudeye
Family: Remcos
Malware Config
C2 Extraction:
31.57.184.17:2404
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/a4ddc3b5eb4ffbf3205179219a920b72f1c8c9b6497fc169ba1a6ca4b1a3dfc8

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique
Rule name:Guloader_VBScript
Create hunting rule
Author:Ankit Anubhav - ankitanubhav.info
Description:Detects GuLoader/CloudEye VBScripts
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.

Cape
Cape
https://www.capesandbox.com/analysis/94248/

Comments