Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 21:15

General

  • Target

    4f112f651b8025db019ae8089a8d591a_JaffaCakes118.exe

  • Size

    253KB

  • MD5

    4f112f651b8025db019ae8089a8d591a

  • SHA1

    17a81f254644dc7cb89739d0789de51bddf7365d

  • SHA256

    f8fcdb7600d274e4bfbcc4cea1a3484b917956f343fd05c5a3488b5d72dbef8e

  • SHA512

    93fae5fd976fdb22c9acf93918e04d7f0eeab0f9476e0d22b432f4e4e0b344f89a5a32cd97998289efac5c8c59b65c9d27d4a8cb322f36962557f023d1fca21c

  • SSDEEP

    6144:4VFNCNrUiyArOqLVA97qxKD/diPo1S11WXTjiBHk95:UN0UOrXZA97PD/dwWKBHk95

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 28 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f112f651b8025db019ae8089a8d591a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4f112f651b8025db019ae8089a8d591a_JaffaCakes118.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3756
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s C:\Users\Admin\AppData\Local\Temp\$rar10987.tmp
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Runs regedit.exe
      PID:2896
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$RAVSING.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:592
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4140

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\$$RAVSING.bat

          Filesize

          253B

          MD5

          cb350b29233b3440633123bb77692140

          SHA1

          52793f1ba4c7925d41c6e79a109080c3d12b69e6

          SHA256

          7031fcb0fa967101e4d4894e9ebbac7e0ed00cc3ba57777afa02f521356530d3

          SHA512

          0e5d3b34262260b807179d6a51e2c62524d3b0a132c05c4425830d376d1002d150aa0fd8e747a67d96b8ae8145ab903892ce3eaa8245084832eefd02b31c09b8

        • C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat

          Filesize

          602B

          MD5

          a4b0f71a1e52723101551d3156b79ac0

          SHA1

          9cce4c28c25c271ecb3b1d7f9eb428e22c459f1e

          SHA256

          61e658319b6e6c4be1bb8e70e5457505d590cfc7530aaa02675b19c31a1fcc5f

          SHA512

          c72cc0d703889e9c4234eded766afa4141b789d268d02e683948f496c4bba8fdbb724a9ae52819bce0909d94d07087c44d1e15ba734c9e5f208334ee7b0d49d3

        • C:\Users\Admin\AppData\Local\Temp\$rar10987.tmp

          Filesize

          1KB

          MD5

          185038ec1cc9a69a109726c8989e4cf5

          SHA1

          bfb62037297e8533e5f3940a32fb9505acf4fe26

          SHA256

          48ccff6cd96445619998a70fad77f5e655a9d146b93d0d160656619728c4e727

          SHA512

          bb0065a36a9bc48199943b21f3c3f10916fd15aa54201513f344464d962b5e6339e1df1b932043a914a662631f842a2f3b7a2c6e8c4e414567c5ea8ac9950391

        • memory/3756-0-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/3756-1-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

          Filesize

          4KB

        • memory/3756-31-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/3756-33-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

          Filesize

          4KB