Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 21:53

General

  • Target

    201568057580f2f4b78198141909827638e3a308814025d53e07d687723fd5d2.exe

  • Size

    5.8MB

  • MD5

    f50c935b2cbba28e115f9fb890668595

  • SHA1

    af9e338d8b043c4b63094cdd1a53c060fccc268f

  • SHA256

    201568057580f2f4b78198141909827638e3a308814025d53e07d687723fd5d2

  • SHA512

    11557d1b8d3a76e82f42a0c8eb618e0d98ef00d54cc2b5c56bdaa833e9a1760253ffebc473a4f58da81b1f1e13e49cde1b0dadadff95ec7afbad70122c1b653c

  • SSDEEP

    98304:Gl5xEFVGfsbIOx43pcfJB4OjltH5QI/DZgVwBq8GtjzTg1dABMB2k36Dn:Gjx4VGfgDx43pcPn5QI7ZjBdGFgTAB2K

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Loads dropped DLL 5 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 1 IoCs
  • Modifies data under HKEY_USERS 53 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\201568057580f2f4b78198141909827638e3a308814025d53e07d687723fd5d2.exe
    "C:\Users\Admin\AppData\Local\Temp\201568057580f2f4b78198141909827638e3a308814025d53e07d687723fd5d2.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4356
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv -install
      2⤵
      • Loads dropped DLL
      PID:4884
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv
      2⤵
      • Loads dropped DLL
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      PID:1388

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\TrustMix\TrustMix.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • C:\Program Files (x86)\TrustMix\TrustMix.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • C:\Program Files (x86)\TrustMix\TrustMix.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • C:\Program Files (x86)\TrustMix\TrustMix.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • C:\Users\Admin\AppData\Local\Temp\tf00294823.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • \??\c:\Program Files (x86)\TrustMix\TrustMix.dll

          Filesize

          3.8MB

          MD5

          5eca85f85d11ba2b36ab77fd4c39bace

          SHA1

          1e5d72773fd5b5ceaafd91a803b3aa8417cf7b3b

          SHA256

          627fc4a0e88b278b90e13b943e5199333c11ec6f2c23df9ebda1d5244d542679

          SHA512

          04b041401aaa6965ea37637b3bc86681af58e2e538eadbb10fbc43b31c8d61b937cdc997587de09c42ef1c7ec101371057e1aed94edc26538e5f8c2b96569664

        • memory/1388-153-0x000000007EFE0000-0x000000007F326000-memory.dmp

          Filesize

          3.3MB

        • memory/4356-132-0x000000007EA30000-0x000000007EF00000-memory.dmp

          Filesize

          4.8MB

        • memory/4356-138-0x000000007E5A0000-0x000000007E8E6000-memory.dmp

          Filesize

          3.3MB

        • memory/4884-146-0x000000007F560000-0x000000007F8A6000-memory.dmp

          Filesize

          3.3MB