Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    06-03-2024 08:34

General

  • Target

    b6fc78a652f0aee0591ba70c1e664e04.exe

  • Size

    192KB

  • MD5

    b6fc78a652f0aee0591ba70c1e664e04

  • SHA1

    432da33aea15177377c3ebed348276bd54fa3c04

  • SHA256

    984e304cd12886ce3157e4828fef366390c30200f1655954c9796d0f1a075abf

  • SHA512

    0040cf0056771bfe256f0cd2e3f0d7b8b53af26b744890d746edbfa3bc24d0f951ccdcb919256e563121fb7d6f094059e5886145c2f9e62693590cc93834365a

  • SSDEEP

    3072:FgAzaW6CRTHpfC066Bbu10Tjwnp/HqUQXNC//JBOl6pCgp0DkaHtJtmgpc:aQaW3RTJfgmo0TjzrXNRlXgp8bt

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies registry class 5 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe
    "C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\fnous.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\regedit.exe
        regedit /s C:\Users\Admin\AppData\Local\Temp\nothks.reg
        3⤵
        • Modifies registry class
        • Runs .reg file with regedit
        PID:2544
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c erase /F "C:\Users\Admin\AppData\Local\Temp\b6fc78a652f0aee0591ba70c1e664e04.exe"
      2⤵
      • Deletes itself
      PID:1936

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\fnous.bat

    Filesize

    126B

    MD5

    7ab275c1bc8750fe49119429e12ab856

    SHA1

    ea556c59c5d3f2be584d2e208ba42a1540f46986

    SHA256

    8d96bacc0e4651d7b8c27613f3f721bb89ca9fb9430bab66b2ef90bfe8cb5bb3

    SHA512

    7fe4bce942523a6adde6d83fc2f63302283f3e0642db4f9f650d50ba8f6f2b7b587229736521615d54b596f24a23146ab7aecb512c145b8dc4b81050ac3576c1

  • C:\Users\Admin\AppData\Local\Temp\nothks.reg

    Filesize

    403B

    MD5

    e1db5e72383ca2535cc04d98efb0f6e6

    SHA1

    b3407d394658ad2d4ef59179fd2ddd419a1dc1d7

    SHA256

    52a9ba0c766a4da941eb674797f1770712e64e2d2104271b4ff6368a45ba5c31

    SHA512

    6ac5c144d0103b722a7203b04f79b3c691ff1393b59555a7ccd454a10a64e2c60111e9e45dc1fdaa3fdf180fac2b0416250aa0180a946c772bd3f1225c15c095

  • memory/2908-9-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2908-12-0x0000000000020000-0x0000000000022000-memory.dmp

    Filesize

    8KB

  • memory/2908-13-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2908-0-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB