Analysis

  • max time kernel
    142s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 08:59

General

  • Target

    2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe

  • Size

    45KB

  • MD5

    33d9e9a072b109981e0fddf5794bda50

  • SHA1

    58b547aa439f477708298614ebd2bf54f4a8f826

  • SHA256

    2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58

  • SHA512

    7511a8aeddc27cfe28251230acccd197b8a8ef69b1e2a2ecb8618071f03e5c3cbfd990ecb6ec0c3d51f46aec055274246f3a874a8a2873e047696830e4b9dbda

  • SSDEEP

    768:0LR8ttHmjjQaIgWFnaz+kIumMp/QjsLscl2WfZ/1H52:mKt4hItkbYjsLsCBb8

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe
    "C:\Users\Admin\AppData\Local\Temp\2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe"
    1⤵
    • Adds autorun key to be loaded by Explorer.exe on startup
    • Loads dropped DLL
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\Opjnck32.exe
      C:\Windows\system32\Opjnck32.exe
      2⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1696

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Opjnck32.exe

    Filesize

    45KB

    MD5

    8b854683b4aaa6d244b75f0dc5cd3aaf

    SHA1

    9a65376f8510155e0de4ae5328af06f5b53e8380

    SHA256

    6a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8

    SHA512

    6bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f

  • \Windows\SysWOW64\Opjnck32.exe

    Filesize

    45KB

    MD5

    8b854683b4aaa6d244b75f0dc5cd3aaf

    SHA1

    9a65376f8510155e0de4ae5328af06f5b53e8380

    SHA256

    6a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8

    SHA512

    6bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f

  • \Windows\SysWOW64\Opjnck32.exe

    Filesize

    45KB

    MD5

    8b854683b4aaa6d244b75f0dc5cd3aaf

    SHA1

    9a65376f8510155e0de4ae5328af06f5b53e8380

    SHA256

    6a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8

    SHA512

    6bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f

  • memory/1352-58-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1352-59-0x0000000000220000-0x000000000024F000-memory.dmp

    Filesize

    188KB

  • memory/1352-62-0x0000000000220000-0x000000000024F000-memory.dmp

    Filesize

    188KB

  • memory/1696-56-0x0000000000000000-mapping.dmp

  • memory/1696-60-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1696-61-0x0000000075B51000-0x0000000075B53000-memory.dmp

    Filesize

    8KB

  • memory/1696-63-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB