Analysis

  • max time kernel
    103s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    31-01-2023 17:35

General

  • Target

    f60f404494766df289220f643e5ca730.xls

  • Size

    364KB

  • MD5

    f60f404494766df289220f643e5ca730

  • SHA1

    386d63dc8623b901e02293e107dc58f280c09823

  • SHA256

    686afc6fb753f15bed690defac787693d35a4afe6c8ac2709d8c53bfad119df8

  • SHA512

    fe0d72f44a233bdea685daeb740285b82861b8e016e8e9b2ec405afb2b27f71f64b723e80eb49bc3a3f9a92065444fd2b3096368ec008ebd7bc8915352fd39b2

  • SSDEEP

    3072:cXBlllllllllllllllllllllllllXO7WXW1+cCUQCiWqAZffIXdHMnIr2FhqDow2:j7WXWkWvfhWYlF73k

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 3 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\f60f404494766df289220f643e5ca730.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:1536
    • 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:1528
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:336
    • 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:1028
    • 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:1008

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/336-222-0x0000000000000000-mapping.dmp
  • memory/1008-221-0x0000000000000000-mapping.dmp
  • memory/1028-220-0x0000000000000000-mapping.dmp
  • memory/1528-219-0x0000000000000000-mapping.dmp
  • memory/1536-74-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-383-0x000000007288D000-0x0000000072898000-memory.dmp
    Filesize

    44KB

  • memory/1536-60-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-72-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-85-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-84-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-83-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-86-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-82-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-81-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-80-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-79-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-78-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-77-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-76-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-75-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-54-0x000000002FE01000-0x000000002FE04000-memory.dmp
    Filesize

    12KB

  • memory/1536-73-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-59-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-61-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-69-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-70-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-68-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-67-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-66-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-65-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-64-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-63-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-62-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-87-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-109-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-58-0x000000007288D000-0x0000000072898000-memory.dmp
    Filesize

    44KB

  • memory/1536-57-0x0000000076581000-0x0000000076583000-memory.dmp
    Filesize

    8KB

  • memory/1536-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1536-55-0x00000000718A1000-0x00000000718A3000-memory.dmp
    Filesize

    8KB

  • memory/1536-71-0x0000000000520000-0x0000000000524000-memory.dmp
    Filesize

    16KB

  • memory/1536-385-0x000000007288D000-0x0000000072898000-memory.dmp
    Filesize

    44KB