Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-06-2024 06:16

General

  • Target

    304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe

  • Size

    4.9MB

  • MD5

    0228b790aed9d54be4897f59c84ebd82

  • SHA1

    d7fe653017abd09777c375eca3912bf53f4c1798

  • SHA256

    304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2

  • SHA512

    8be0bd1501f2b678a47326372bf27cfa29d5c6dc60ac458de90be9d918c8ce0e1f859e1af2d22323001610466b0d6881c9a82554c34b512be307344affa17088

  • SSDEEP

    98304:mBn/8zu14Y9ZQyfsULzKZLYdTX6Fhv1n18y:Y1X9uyUBLYxXIniy

Malware Config

Extracted

Family

socks5systemz

C2

cchekni.net

http://cchekni.net/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c9e9979c3d

http://cchekni.net/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ea93834896148ab2865b77f80ebad9c50f7cb63037ed2ab423a4344383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e697933dcf6990

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe
    "C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Users\Admin\AppData\Local\Temp\is-Q4FM7.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q4FM7.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp" /SL5="$4022E,4920826,54272,C:\Users\Admin\AppData\Local\Temp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4684
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2328
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe

    Filesize

    2.9MB

    MD5

    d1aa58659cf742b52c64e436fd44c8b9

    SHA1

    275397aa35f350b6ca954d8f6d77b1c8c67108e2

    SHA256

    5e6e8479ca647786df6bf2efdbcf3d25fe4147a1699ab91984dc071b4e0458f2

    SHA512

    ef241bf010e54be0195b07010f9581977dbad0a1a055c9c7b4cb921183f4df79cadc4ef0a8b3aa0df8a101cc7ad30bf79327e735b47734132f2d81053166dd18

  • C:\Users\Admin\AppData\Local\Temp\is-KT7KU.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-Q4FM7.tmp\304b5bdaeefe3d5b3d25bc4591aa9b2836d82511601843c9bad15089ef7ffff2.tmp

    Filesize

    680KB

    MD5

    c887103e50c44eeb44492217bfaac65a

    SHA1

    8031cb0829e7709b8dd0dbd796572d35ba47b4d6

    SHA256

    8d4240309d8ea06c2b3bf6808c83f014c6bee9c188019251c9edf31699f0488f

    SHA512

    4a4bce3f0686b8c0a8cf4d5418e60dfd64d63bf2eee84a569b933d6c40980ea365cbc24df9190cb13ff04cc4bfd2bd64622ad990a435a1010c777d1d6a4f35d7

  • memory/2328-59-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2328-63-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2328-60-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2328-65-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2540-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2540-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2540-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2896-74-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-95-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-119-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-71-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-116-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-75-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-78-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-81-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-84-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-87-0x0000000000B30000-0x0000000000BD2000-memory.dmp

    Filesize

    648KB

  • memory/2896-90-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-68-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-98-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-101-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-104-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-107-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-110-0x0000000000400000-0x00000000006F4000-memory.dmp

    Filesize

    3.0MB

  • memory/2896-112-0x0000000000B30000-0x0000000000BD2000-memory.dmp

    Filesize

    648KB

  • memory/2896-111-0x0000000000B30000-0x0000000000BD2000-memory.dmp

    Filesize

    648KB

  • memory/4684-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4684-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB