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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7a3e4f90a84464e0e9daedb8813b855d1abe695c4460d9eaa809aae1bec6782. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: a7a3e4f90a84464e0e9daedb8813b855d1abe695c4460d9eaa809aae1bec6782
SHA3-384 hash: 2e63083fb25451114a160474a43dbbb508fe1f2629b10f36c46f215493e385521e2992e6c52db1b6ad137f9086886d8a
SHA1 hash: c9cb52ce2c1979508c0e885d20150ebd3776ea26
MD5 hash: 7cf894c603e215c3afdbe5246badd3a0
humanhash: november-mockingbird-blue-aspen
File name:Worriter.vbs
Download: download sample
Signature RemcosRAT
File size:70'286 bytes
First seen:2026-05-20 16:34:15 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:iVq3MuczPQP+DUA3U4SvZ1t5NzmNVGWuf:iM3hc8P+DV3U7ZX5NEof
TLSH T1A86349B1DE6407560D4727BEEC802A90D279C369412314F8FED86349A10EDBCB7BEB59
Magika vba
Reporter TomU
Tags:exe RemcosRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Tags:
virus agent sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint
Verdict:
Malicious
File Type:
vbs
First seen:
2026-05-14T15:47:00Z UTC
Last seen:
2026-05-22T11:53:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2026-05-14 18:55:56 UTC
File Type:
Text (VBS)
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery persistence privilege_escalation rat
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Use of msiexec (install) with remote resource
Badlisted process makes network request
Family: Remcos
Malware Config
C2 Extraction:
31.57.184.187:2404
Please note that we are no longer able to provide a coverage score for Virus Total.

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:detect_tiny_vbs
Author:daniyyell
Description:Detects tiny VBS delivery technique

File information


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

Malspam

RemcosRAT

Visual Basic Script (vbs) vbs a7a3e4f90a84464e0e9daedb8813b855d1abe695c4460d9eaa809aae1bec6782

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments