Analysis

  • max time kernel
    160s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 12:06

General

  • Target

    608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls

  • Size

    99KB

  • MD5

    0351fb6e1b638462fc8f42af53d9fe41

  • SHA1

    4b3b8deb885c65636855ead175234ca4f9d362fd

  • SHA256

    608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038

  • SHA512

    7d52a6edea19013efba87ea2fcca2a84021b2207b2e6c8d3233f06dc4c99171712417fa44ff81344ad34f32c8506ef9c504e52efe4bf893a5bb1154271e52dfe

  • SSDEEP

    1536:PlllBJTYaYo9wXF0Fn2jcc0lbxOvTgZeb2cJtXwgMK:VKg2jcc0lbxOrRFJtXwhK

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\608e23230f8171d0ee7cfea3f34766ae219bcafdcd261240c650039fc3230038.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1948
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1820
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1448

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1448-222-0x0000000000000000-mapping.dmp
  • memory/1820-221-0x0000000000000000-mapping.dmp
  • memory/1920-220-0x0000000000000000-mapping.dmp
  • memory/1948-223-0x0000000000000000-mapping.dmp
  • memory/2044-74-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-55-0x00000000719A1000-0x00000000719A3000-memory.dmp
    Filesize

    8KB

  • memory/2044-59-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-72-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-85-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-84-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-86-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-83-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-82-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-81-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-80-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-79-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-78-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-77-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-76-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-75-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-54-0x000000002F461000-0x000000002F464000-memory.dmp
    Filesize

    12KB

  • memory/2044-73-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-61-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-60-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-69-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-70-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-68-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-67-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-66-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-65-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-64-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-63-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-62-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-87-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-109-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-175-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB

  • memory/2044-58-0x0000000076941000-0x0000000076943000-memory.dmp
    Filesize

    8KB

  • memory/2044-57-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB

  • memory/2044-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2044-71-0x00000000006DA000-0x00000000006DE000-memory.dmp
    Filesize

    16KB

  • memory/2044-385-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB