MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640f79c3e3bd4a3d762a7b94121972dc8a54c02b614e321a18f4ce01ebf53a92. 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



DCRat


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: 640f79c3e3bd4a3d762a7b94121972dc8a54c02b614e321a18f4ce01ebf53a92
SHA3-384 hash: 2bbf0fedc9afa8728ac2116a01675c4bf1a0ed9020ad246558848e1b5119f7286a2230261c88aec4b6ec930e5237c025
SHA1 hash: 0ff920190f18caf6b034ac593928a4943b0e6f43
MD5 hash: a5e15040a3d0388a7fc23ef0d481c69e
humanhash: wisconsin-black-delta-muppet
File name:HealthUpdateCore.vbs
Download: download sample
Signature DCRat
File size:897'855 bytes
First seen:2025-07-28 05:03:36 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12288:V/zMZ/TrvrXQPc2/zMZ/TrvrXQPcOmJ/zMZ/TrvrXQPc0:V/zE/TbTQE2/zE/TbTQEx/zE/TbTQE0
Threatray 1'792 similar samples on MalwareBazaar
TLSH T1E915D1C5BA0E7D48589173F564188561E3DC83D0A30ADEA7FDBCC94EF342868DA67B90
Magika vba
Reporter abuse_ch
Tags:DCRat vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
42
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme spawn
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Result
Threat name:
AsyncRAT, DcRat
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
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 starts Powershell (via cmd or directly)
Yara detected AsyncRAT
Yara detected DcRat
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1745335 Sample: HealthUpdateCore.vbs Startdate: 28/07/2025 Architecture: WINDOWS Score: 100 24 securityhealthmonitor.duckdns.org 2->24 26 www.pastery.net 2->26 28 pngup.com 2->28 36 Suricata IDS alerts for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 44 15 other signatures 2->44 8 wscript.exe 1 2->8         started        signatures3 42 Uses dynamic DNS services 24->42 process4 dnsIp5 30 www.pastery.net 104.21.96.1, 443, 49716, 49723 CLOUDFLARENETUS United States 8->30 46 System process connects to network (likely due to code injection or exploit) 8->46 48 VBScript performs obfuscated calls to suspicious functions 8->48 50 Suspicious powershell command line found 8->50 52 4 other signatures 8->52 12 powershell.exe 14 16 8->12         started        signatures6 process7 dnsIp8 32 pngup.com 149.56.126.37, 443, 49719 OVHFR Canada 12->32 54 Writes to foreign memory regions 12->54 56 Found suspicious powershell code related to unpacking or dynamic code loading 12->56 58 Injects a PE file into a foreign processes 12->58 16 AppLaunch.exe 2 12->16         started        20 conhost.exe 12->20         started        signatures9 process10 dnsIp11 22 securityhealthmonitor.duckdns.org 191.93.118.254, 49724, 49725, 49727 ColombiaMovilCO Colombia 16->22 34 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 16->34 signatures12
Verdict:
Malware
YARA:
3 match(es)
Tags:
Html MSXML2.ServerXMLHTTP.6.0 VBScript
Threat name:
Script-WScript.Trojan.Honolulu
Status:
Malicious
First seen:
2025-07-28 05:04:24 UTC
File Type:
Text (VBS)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Malware Config
Dropper Extraction:
https://pngup.com/ZnJi/output_image.bmp
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

DCRat

Visual Basic Script (vbs) vbs 640f79c3e3bd4a3d762a7b94121972dc8a54c02b614e321a18f4ce01ebf53a92

(this sample)

  
Delivery method
Distributed via web download

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