Analysis

  • max time kernel
    101s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:54

General

  • Target

    8fca49370c4d1f986e6b1850748d18182a879c05f5bc709800ea3a02a4ccf992.xls

  • Size

    185KB

  • MD5

    9a67a32b8de92fffa5c00a570c64558a

  • SHA1

    1d92473d39544f79fd3dd62375b63cbfa47850de

  • SHA256

    8fca49370c4d1f986e6b1850748d18182a879c05f5bc709800ea3a02a4ccf992

  • SHA512

    b2658a4fe2195b48efec092f2f6c633a9a79629c98f7b7107e1b1636698262eb9a1bc899c86b1a786a1e33bb02e8de0c5484a62eae462f11c3a0685f254f80fe

  • SSDEEP

    3072:eF+HEK6EIJiRLHJ+O01uWVbh2zQ7ITk9pxJtXwkv42Q:fHD7G

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\8fca49370c4d1f986e6b1850748d18182a879c05f5bc709800ea3a02a4ccf992.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:1340
    • 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:836
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1376
    • 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:700
    • 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:1940

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/700-220-0x0000000000000000-mapping.dmp
  • memory/836-219-0x0000000000000000-mapping.dmp
  • memory/1340-76-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-69-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-58-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
    Filesize

    8KB

  • memory/1340-79-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-66-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-67-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-68-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-78-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-70-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-71-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-72-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-73-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-74-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-80-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-54-0x000000002F571000-0x000000002F574000-memory.dmp
    Filesize

    12KB

  • memory/1340-77-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-65-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-57-0x0000000071F1D000-0x0000000071F28000-memory.dmp
    Filesize

    44KB

  • memory/1340-75-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-81-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-82-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-83-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-84-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-85-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-86-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-87-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-109-0x00000000008A1000-0x00000000008A4000-memory.dmp
    Filesize

    12KB

  • memory/1340-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1340-55-0x0000000070F31000-0x0000000070F33000-memory.dmp
    Filesize

    8KB

  • memory/1340-385-0x0000000071F1D000-0x0000000071F28000-memory.dmp
    Filesize

    44KB

  • memory/1340-383-0x0000000071F1D000-0x0000000071F28000-memory.dmp
    Filesize

    44KB

  • memory/1376-222-0x0000000000000000-mapping.dmp
  • memory/1940-221-0x0000000000000000-mapping.dmp