MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 073e4daf286173372555f2c0525977bb8164febab473bdb3b29add90c2667acb. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: 073e4daf286173372555f2c0525977bb8164febab473bdb3b29add90c2667acb
SHA3-384 hash: 10c5cc2836a24c8d43153538c2538f2e9b08768768c312095a8a7b577fed434d4999e9d9e2768a15852b35d3ac36e1ab
SHA1 hash: cace34c072f836fa9dbbd0dac59027ac91a0921f
MD5 hash: 558fdd0cc38659e58cb9a33166baa524
humanhash: summer-maryland-item-kentucky
File name:31agosto.vbs
Download: download sample
Signature RemcosRAT
File size:4'353'102 bytes
First seen:2025-11-20 07:44:27 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 192:+PPPPiPPPPiPPPP3oZDNRgmWpdVj26jbPPPPtPPPPtPPPPtPPPPtPPPPtPPPPtP5:Zgm8dVPupe
Threatray 671 similar samples on MalwareBazaar
TLSH T1D31642073DBE412B652234413C89B357853D62BEC4084ECDEFA3D1B4DEDAA48B9D1AD9
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter abuse_ch
Tags:RAT RemcosRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
52
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 obfuscated powershell
Verdict:
Malicious
File Type:
unknown
First seen:
2025-11-19T10:30:00Z UTC
Last seen:
2025-11-19T10:48:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic
Result
Threat name:
PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Bypasses PowerShell execution policy
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal Bitcoin Wallet information
Unusual module load detection (module proxying)
Uses dynamic DNS services
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 Generic Downloader
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1817599 Sample: 31agosto.vbs Startdate: 20/11/2025 Architecture: WINDOWS Score: 100 33 purerat32.duckdns.org 2->33 35 esvpotfvg0.ufs.sh 2->35 37 bg.microsoft.map.fastly.net 2->37 43 Suricata IDS alerts for network traffic 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 51 11 other signatures 2->51 10 wscript.exe 1 2->10         started        signatures3 49 Uses dynamic DNS services 33->49 process4 signatures5 71 Suspicious powershell command line found 10->71 73 Wscript starts Powershell (via cmd or directly) 10->73 75 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->75 77 Suspicious execution chain found 10->77 13 powershell.exe 7 10->13         started        process6 signatures7 79 Suspicious powershell command line found 13->79 81 Found many strings related to Crypto-Wallets (likely being stolen) 13->81 83 Encrypted powershell cmdline option found 13->83 85 2 other signatures 13->85 16 powershell.exe 14 17 13->16         started        19 conhost.exe 13->19         started        process8 file9 31 C:\Users\user\AppData\Local\Temp\DvVbs.ps1, Unicode 16->31 dropped 21 powershell.exe 11 16->21         started        process10 dnsIp11 39 esvpotfvg0.ufs.sh 104.21.43.201, 443, 49697 CLOUDFLARENETUS United States 21->39 53 Writes to foreign memory regions 21->53 55 Injects a PE file into a foreign processes 21->55 25 aspnet_regbrowsers.exe 21->25         started        28 aspnet_regbrowsers.exe 2 2 21->28         started        signatures12 process13 dnsIp14 57 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 25->57 59 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 25->59 61 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 25->61 69 2 other signatures 25->69 41 purerat32.duckdns.org 186.169.67.93, 2023, 49699, 49701 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 28->41 63 Found many strings related to Crypto-Wallets (likely being stolen) 28->63 65 Tries to harvest and steal Bitcoin Wallet information 28->65 67 Installs a global keyboard hook 28->67 signatures15
Gathering data
Threat name:
Script-WScript.Trojan.Honolulu
Status:
Malicious
First seen:
2025-11-19 12:40:05 UTC
File Type:
Text (VBS)
AV detection:
7 of 38 (18.42%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Badlisted process makes network request
Malware Config
Dropper Extraction:
https://firebasestorage.googleapis.com/v0/b/loloer3434.firebasestorage.app/o/CIFRADO%20FFF3333%2FRODA%20UPDTATES%2027%20OCTOBER%2FRODA05NOVIEMBRE%2Fskydll.txt?alt=media&token=4bdbc53a-6cc5-4e00-8247-fd9894d6a32f
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:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Web download

RemcosRAT

Visual Basic Script (vbs) vbs 073e4daf286173372555f2c0525977bb8164febab473bdb3b29add90c2667acb

(this sample)

Comments