Analysis

  • max time kernel
    115s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:24

General

  • Target

    b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21.xls

  • Size

    96KB

  • MD5

    530cc3a75372b8daf4018775630f4b03

  • SHA1

    5d0562633d777a4fac2d10187c71f9782e8dfc43

  • SHA256

    b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21

  • SHA512

    d1f475e2eab79c7e0ee43a6fc4cf67a48918156238cf17ae35ca2ae47c16082d478bb1611106c1373236b7a0f978795b719f3c21dfddfee8a7e4c5b721b57aee

  • SSDEEP

    1536:YaaasnaVRJgAv/QsLrag4pGnuifzIgZ95Dt71WVbk2RPIzQ7ITkR62lpIhY7nJdT:YuWVbTuzQ7ITk9M2AJzXwV5km1

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\b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21.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:1708
    • 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:2044
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:364
    • 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:1232
    • 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:380

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/364-222-0x0000000000000000-mapping.dmp
  • memory/380-221-0x0000000000000000-mapping.dmp
  • memory/1232-220-0x0000000000000000-mapping.dmp
  • memory/1708-77-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-383-0x000000007246D000-0x0000000072478000-memory.dmp
    Filesize

    44KB

  • memory/1708-59-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-60-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-61-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-63-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-65-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-64-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-70-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-67-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-66-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-76-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-75-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-74-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-73-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-72-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-71-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-54-0x000000002F561000-0x000000002F564000-memory.dmp
    Filesize

    12KB

  • memory/1708-62-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-58-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB

  • memory/1708-83-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-79-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-78-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-80-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-81-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-68-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-82-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-84-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-85-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-86-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-87-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-109-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/1708-385-0x000000007246D000-0x0000000072478000-memory.dmp
    Filesize

    44KB

  • memory/1708-57-0x000000007246D000-0x0000000072478000-memory.dmp
    Filesize

    44KB

  • memory/1708-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1708-55-0x0000000071481000-0x0000000071483000-memory.dmp
    Filesize

    8KB

  • memory/1708-69-0x00000000003C4000-0x00000000003C8000-memory.dmp
    Filesize

    16KB

  • memory/2044-219-0x0000000000000000-mapping.dmp