Analysis

  • max time kernel
    152s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 03:09

General

  • Target

    c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3.xls

  • Size

    197KB

  • MD5

    f6b78f6678531ba218d087df844c7f2a

  • SHA1

    d0fc1ae76f794175c4e1e3c10d96ff638e0fb9e7

  • SHA256

    c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3

  • SHA512

    5b743752e03e4cedd31760c997046cad97ed5e2a8c3f8b61ddce5a7c056aa776370c833fdab646689e3b9461eb5558abd4ac5ac82bfb289776b958a5d04ebcd6

  • SSDEEP

    3072:QQ6o/lbBt0HOho7iaHZbj0ZAZI03b4MJnClmn62jcc0lbxOrIIEJtXwKH:VOJQKy

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\c74131d1c4756638c90443071a9b5feacaf574bcccef52771cdc34b0228d03b3.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:1204
    • 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:1036
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1752
    • 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:1176
    • 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:920

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/920-221-0x0000000000000000-mapping.dmp
  • memory/1036-219-0x0000000000000000-mapping.dmp
  • memory/1176-220-0x0000000000000000-mapping.dmp
  • memory/1204-60-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-383-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-59-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-54-0x000000002FC31000-0x000000002FC34000-memory.dmp
    Filesize

    12KB

  • memory/1204-61-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-62-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-63-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-64-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-57-0x000000007273D000-0x0000000072748000-memory.dmp
    Filesize

    44KB

  • memory/1204-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1204-55-0x0000000071751000-0x0000000071753000-memory.dmp
    Filesize

    8KB

  • memory/1204-385-0x000000007273D000-0x0000000072748000-memory.dmp
    Filesize

    44KB

  • memory/1204-223-0x000000007273D000-0x0000000072748000-memory.dmp
    Filesize

    44KB

  • memory/1204-268-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-269-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-270-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-58-0x0000000075E31000-0x0000000075E33000-memory.dmp
    Filesize

    8KB

  • memory/1204-382-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-381-0x0000000000791000-0x000000000079A000-memory.dmp
    Filesize

    36KB

  • memory/1204-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1752-222-0x0000000000000000-mapping.dmp