Analysis

  • max time kernel
    145s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 03:09

General

  • Target

    d76b03ff5e685d40a5056cb70c46a3ac9313afbe40fe04c36fb27fdd0f86bc9b.xls

  • Size

    183KB

  • MD5

    d0b549524a1a0918a9152e690f3d59fb

  • SHA1

    b63bfb3f7ebfe0b10d288b0254b862cb9afdda65

  • SHA256

    d76b03ff5e685d40a5056cb70c46a3ac9313afbe40fe04c36fb27fdd0f86bc9b

  • SHA512

    d855eb74ba06fdee12a479e8165cda508aae9f09612c2d7f0f6e75c7c33905f19d0d09c53dea5ae19713da9d8da7293705375bfa36b84b801f6ca519368cf31b

  • SSDEEP

    3072:xdyug0R5BVhj2jcc0lbxOKIu8JtXwric:xdyu3R5BVhE4

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 7 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\d76b03ff5e685d40a5056cb70c46a3ac9313afbe40fe04c36fb27fdd0f86bc9b.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:940
    • 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:364
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1808
    • 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:292
    • 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:1052

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/292-220-0x0000000000000000-mapping.dmp
  • memory/364-219-0x0000000000000000-mapping.dmp
  • memory/940-72-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-84-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-58-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
    Filesize

    8KB

  • memory/940-60-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-61-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-59-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-62-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-63-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-54-0x000000002FB61000-0x000000002FB64000-memory.dmp
    Filesize

    12KB

  • memory/940-64-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-66-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-67-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-68-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-69-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-70-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-71-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-73-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-74-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-65-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-384-0x0000000071FBD000-0x0000000071FC8000-memory.dmp
    Filesize

    44KB

  • memory/940-81-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-77-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-78-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-79-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-80-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-76-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-82-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-83-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-57-0x0000000071FBD000-0x0000000071FC8000-memory.dmp
    Filesize

    44KB

  • memory/940-85-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-86-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-87-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-109-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/940-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/940-55-0x0000000070FD1000-0x0000000070FD3000-memory.dmp
    Filesize

    8KB

  • memory/940-75-0x00000000002F0000-0x00000000003F0000-memory.dmp
    Filesize

    1024KB

  • memory/1052-221-0x0000000000000000-mapping.dmp
  • memory/1808-222-0x0000000000000000-mapping.dmp