Analysis

  • max time kernel
    115s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:25

General

  • Target

    9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9.xls

  • Size

    101KB

  • MD5

    2f424af4c436a6d478c427dbe7ac300a

  • SHA1

    dad41d786c8efbb59f53142b6575c7d0e9ba9dc5

  • SHA256

    9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9

  • SHA512

    f33002fa59bf675629181e43a99680d8b9d92b628352332236d0e3cbe4ddd981a2da887e1889683de582fd77c1bc23957a58927b747aa6760bfe9c51a91cb5e2

  • SSDEEP

    1536:G777PJtT1V3WVbrzQ7lSzTkR62lGM88DcJtXwRtM2M/MW1adQ:gWVbrzQ7UTk9tjYJtXwQ5ksadQ

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\9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9.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:1008
    • 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:824
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:820
    • 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:1764
    • 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:1728

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/820-112-0x0000000000000000-mapping.dmp
  • memory/824-109-0x0000000000000000-mapping.dmp
  • memory/1008-66-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-113-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-58-0x0000000075C51000-0x0000000075C53000-memory.dmp
    Filesize

    8KB

  • memory/1008-59-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-65-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-64-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-63-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-62-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-61-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-60-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-163-0x00000000720DD000-0x00000000720E8000-memory.dmp
    Filesize

    44KB

  • memory/1008-57-0x00000000720DD000-0x00000000720E8000-memory.dmp
    Filesize

    44KB

  • memory/1008-94-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-87-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-80-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-101-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-108-0x00000000720DD000-0x00000000720E8000-memory.dmp
    Filesize

    44KB

  • memory/1008-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1008-54-0x000000002F2A1000-0x000000002F2A4000-memory.dmp
    Filesize

    12KB

  • memory/1008-120-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1008-55-0x00000000710F1000-0x00000000710F3000-memory.dmp
    Filesize

    8KB

  • memory/1008-73-0x0000000000479000-0x000000000047D000-memory.dmp
    Filesize

    16KB

  • memory/1728-111-0x0000000000000000-mapping.dmp
  • memory/1764-110-0x0000000000000000-mapping.dmp