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Analysis

  • max time kernel
    138s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 20:50

General

  • Target

    cf9cd6a6b483d7006af6dc8ac5ae2fbd69a0d70f22fcbc9d8a2e241ba4f26df2.exe

  • Size

    5.8MB

  • MD5

    d8f133f6ac989889d64decd864fe803e

  • SHA1

    79b3068e05a48a197cd4f8a37a9e33ab087e5875

  • SHA256

    cf9cd6a6b483d7006af6dc8ac5ae2fbd69a0d70f22fcbc9d8a2e241ba4f26df2

  • SHA512

    d5b64848d7194154f08f72d96f4d40cc8e193e3804d2ffb2c7ce079a5084c6534f61ca9352392314b34efcf21318e03ed9479f33e88306526347c4703bd6fd1c

  • SSDEEP

    98304:nFastLdG1V67xuqI+cprrXTUJ7S54zlyNnA9GjfunztH9Cq8G197QdJpJMr2Pv:nFaMpyI74l+cpjgJS5a4NnxfuR4qzurF

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Loads dropped DLL 10 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 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf9cd6a6b483d7006af6dc8ac5ae2fbd69a0d70f22fcbc9d8a2e241ba4f26df2.exe
    "C:\Users\Admin\AppData\Local\Temp\cf9cd6a6b483d7006af6dc8ac5ae2fbd69a0d70f22fcbc9d8a2e241ba4f26df2.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv -install
      2⤵
      • Loads dropped DLL
      PID:1716
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\TrustMix\TrustMix.dll",serv
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:864
    • 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:1492

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

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

    Filesize

    3.9MB

    MD5

    5a553d9519346659b12036b1c7f76256

    SHA1

    3f35c278acf7407d3f7a2a0b98ad9925ca6b2fdc

    SHA256

    b5e3bed35563d047e25abd77f00c57c93e5bd65bab59d025d3cb4ce28c8dbd07

    SHA512

    3985bbee5a77fe41b6361fedf2d20a4ecaa29eab9d795f460a2c43a681a51bedf5d3d7f3af6b173061f76be3cc5074028d38f7319ba8d878a7b36e60f88e087d

  • memory/1492-84-0x000000007EC60000-0x000000007EFA6000-memory.dmp

    Filesize

    3.3MB

  • memory/1716-73-0x000000007EC60000-0x000000007EFA6000-memory.dmp

    Filesize

    3.3MB

  • memory/1724-61-0x000000007E640000-0x000000007E986000-memory.dmp

    Filesize

    3.3MB

  • memory/1724-54-0x000000007EAD0000-0x000000007EFAE000-memory.dmp

    Filesize

    4.9MB

  • memory/1724-59-0x0000000075111000-0x0000000075113000-memory.dmp

    Filesize

    8KB