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Analysis

  • max time kernel
    145s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01/02/2024, 07:20

General

  • Target

    86476884d5cf831c852593bb8f9cc597.exe

  • Size

    41KB

  • MD5

    86476884d5cf831c852593bb8f9cc597

  • SHA1

    a70de34904c55e7c2f08d5e154406b1bf0d25d5d

  • SHA256

    e717ddb6adfb9a8f1cd374a38f10cacd29c169727329a2be11ca086da88b75c0

  • SHA512

    9cb18391c316a6bc350219906cea540b8e543951ec9423157279fded2977bdc527d9dfa3da903e88d034c96408dde2813c9691c5f27e40efc8baa20a0d07ce3a

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+I7cVKh:s9Z3KcR4mjD9r8226+Eh

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe
    "C:\Users\Admin\AppData\Local\Temp\86476884d5cf831c852593bb8f9cc597.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\WJVR32KTV7u8VvI.exe

    Filesize

    41KB

    MD5

    57d7846e54cc507b9549642c1976b878

    SHA1

    938bb4ab8422c94c407a2c1db22061d5cb48444d

    SHA256

    11ea21515f805664eadfc9dda6ac1d201be871e2f8ee3ec3ff06b2fcf980a108

    SHA512

    c148435235408600027433db7848d3e61b326b958732bdeab38b69fdd9ee71ab78782e38e1e192a1850ed632d79aa3b7f3b994364c3f24134520dc54146d3606

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • memory/1436-0-0x00000000013D0000-0x00000000013E7000-memory.dmp

    Filesize

    92KB

  • memory/1436-9-0x00000000013D0000-0x00000000013E7000-memory.dmp

    Filesize

    92KB

  • memory/1436-8-0x00000000000E0000-0x00000000000F7000-memory.dmp

    Filesize

    92KB

  • memory/1640-12-0x0000000000240000-0x0000000000257000-memory.dmp

    Filesize

    92KB