Analysis

  • max time kernel
    116s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 12:21

General

  • Target

    c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217.xls

  • Size

    105KB

  • MD5

    ad2bb5d99a87565da2a2177c1a55e927

  • SHA1

    deefe54208a26ef45b6e9a5cdb113ca7a2ec6f54

  • SHA256

    c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217

  • SHA512

    c3f74fab630d69482e614408a9c57a3eed1a5fffcb7a2ef9f2f2583c564a82eb8907057b11c203c920a568104a4827c00d9d12302c3292410c7d1649255ac0ba

  • SSDEEP

    1536:lPPPP7WH8Vo6+PWVbrzIZkC7ITkR629BCOU/WwF1JaM2M/MxAG6m:xWWVbrzIZn7ITk9zDWX5kLf

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\c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217.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:1180
    • 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:1484
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1708
    • 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:1512
    • 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:968

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/968-221-0x0000000000000000-mapping.dmp
  • memory/1180-74-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-85-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-57-0x000000007268D000-0x0000000072698000-memory.dmp
    Filesize

    44KB

  • memory/1180-58-0x0000000076041000-0x0000000076043000-memory.dmp
    Filesize

    8KB

  • memory/1180-59-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-60-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-73-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-62-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-63-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-65-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-66-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-67-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-64-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-68-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-69-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-70-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-71-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-75-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-61-0x00000000007E0000-0x00000000007E6000-memory.dmp
    Filesize

    24KB

  • memory/1180-385-0x000000007268D000-0x0000000072698000-memory.dmp
    Filesize

    44KB

  • memory/1180-72-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-78-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-80-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-81-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-79-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-77-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-76-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-84-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1180-83-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-82-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-86-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-87-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-109-0x00000000007E6000-0x00000000007EA000-memory.dmp
    Filesize

    16KB

  • memory/1180-54-0x000000002FC71000-0x000000002FC74000-memory.dmp
    Filesize

    12KB

  • memory/1180-222-0x000000007268D000-0x0000000072698000-memory.dmp
    Filesize

    44KB

  • memory/1180-55-0x00000000716A1000-0x00000000716A3000-memory.dmp
    Filesize

    8KB

  • memory/1484-219-0x0000000000000000-mapping.dmp
  • memory/1512-220-0x0000000000000000-mapping.dmp
  • memory/1708-223-0x0000000000000000-mapping.dmp