MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 039851fe0310d0e281fe0068ebe546dfaef34838bd506fd341bd4e71a8cf1530. 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
Grandoreiro
Vendor detections: 11
| SHA256 hash: | 039851fe0310d0e281fe0068ebe546dfaef34838bd506fd341bd4e71a8cf1530 |
|---|---|
| SHA3-384 hash: | a7889833ba67c49d6aa344654f2409f1596f2124de2f3fd95357c65ae8a17acf1a9d6b25471c3ab011bbde3e8c8deb1a |
| SHA1 hash: | 16390f84fda5234668abe1ec6e39f6431daef7e7 |
| MD5 hash: | e4f00e849e5a0e7575f22e66b5618070 |
| humanhash: | beryllium-magnesium-london-maine |
| File name: | Pol_RecepGHLLExp0kdhgbcCialxune_94VED_83D2B5SELMQFirm.vbs |
| Download: | download sample |
| Signature | Grandoreiro |
| File size: | 4'253'431 bytes |
| First seen: | 2026-10-29 06:36:03 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 49152:92wSyj10i9yEM0tbU1szZ57vw/b1SHNe2rov0l2skHEfaJU:HB |
| TLSH | T1E61602379BA8051B09E1476AF00A6273BF76D423874C82A5CCDDE31939CB4DA927F5E4 |
| Magika | txt |
| Reporter |  abuse_ch |
| Tags: | geo Grandoreiro MEX vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
104
Origin country :
SEVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Clean
Score:
89.3%
Tags:
n/a
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-debug evasive fingerprint keylogger obfuscated packed reconnaissance remcos
Verdict:
Malicious
Labled as:
GT:VB.Remcos.2
Verdict:
Malicious
File Type:
vbs
First seen:
2026-10-29T04:40:00Z UTC
Last seen:
2026-10-30T02:10:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
Connects to many ports of the same IP (likely port scanning)
Drops PE files to the user root directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
Score:
62%
Verdict:
Susipicious
File Type:
SCRIPT
Verdict:
Malware
YARA:
1 match(es)
Tags:
ADODB.Stream COM Behavior Trace DeObfuscated Microsoft.XMLDOM Obfuscated Scripting.FileSystemObject Shell.Application SOS: 0.76 T1027 T1059 T1059.005 VBScript WScript.Shell
Threat name:
Script-WScript.Backdoor.Remcos
Status:
Malicious
First seen:
2026-10-29 06:24:19 UTC
File Type:
Text
AV detection:
10 of 23 (43.48%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
Grandoreiro
Result
Malware family:
n/a
Score:
9/10
Tags:
defense_evasion discovery execution persistence ransomware
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
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.
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Looks for VMWare Tools registry key
Enumerates VirtualBox registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Looks for VirtualBox Guest Additions in registry
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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