Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    27-12-2023 12:17

General

  • Target

    曹/新型煤化工调研表(北元化工).xls

  • Size

    108KB

  • MD5

    7a6a6082abf0cbc5d3ea006b9f0c5897

  • SHA1

    e78b0d6bd93f8e91e7e721d598f89d70870aa033

  • SHA256

    fe4b9bf7a264eeeb984bc12f2e3c66eaea0b7ac052ec4f32516268aa73b3172f

  • SHA512

    16fabb6c2bb3dbbe5d6b0defd63cead3e79fa13c00313540bc59458d29461c26c922eccce32c08b3651867c6031cc4fda76de82b24e3f42c32d206e8ba0c63ba

  • SSDEEP

    3072:OD0l6Nc7yRzs1H75wkZUgsQ6NqTBun5o5PxWVbrzQ7I3kZYjhJtXwXK:vl6Nc7yRzs1H75wkZUgsQ6NqTBun5oBk

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\曹\新型煤化工调研表(北元化工).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:2280
    • 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:2472
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1028
    • 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:1800
    • 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:2012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2280-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2280-1-0x000000007217D000-0x0000000072188000-memory.dmp

    Filesize

    44KB

  • memory/2280-6-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-31-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-33-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-56-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-82-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-104-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-125-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-157-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-174-0x000000007217D000-0x0000000072188000-memory.dmp

    Filesize

    44KB

  • memory/2280-176-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-197-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-225-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-227-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-245-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-271-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-273-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-300-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-302-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-326-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-345-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-346-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-347-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-348-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-349-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-350-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-351-0x0000000005F40000-0x0000000006040000-memory.dmp

    Filesize

    1024KB

  • memory/2280-354-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2280-355-0x000000007217D000-0x0000000072188000-memory.dmp

    Filesize

    44KB