Analysis

  • max time kernel
    106s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 15:38

General

  • Target

    45a447bdd100e6e368acef2e5e2351b6b5aaa1556fcf4db9ac7be966919e0f86.xls

  • Size

    89KB

  • MD5

    a6c6064ae2ac898e4daf8905e651d125

  • SHA1

    c727b950e2111f188516b2d977e7a04abd00f2e0

  • SHA256

    45a447bdd100e6e368acef2e5e2351b6b5aaa1556fcf4db9ac7be966919e0f86

  • SHA512

    f61477102abfe0d500bb30ecf4fd98d1b6ba7d35634f962655d0f78f1f9224c16099fc350d2c0974408be726a061b50e96bc4c8d50cf17baf6b8b4f49e940764

  • SSDEEP

    1536:2gggMu1VIxzp/WVbrzQ7ITkFx23S2U9JtXwzPN3F:wxFWVbrzQ7ITkGFKJtXwzlF

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\45a447bdd100e6e368acef2e5e2351b6b5aaa1556fcf4db9ac7be966919e0f86.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:1504
    • 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:1172
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1184
    • 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:1732
    • 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:1772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1172-219-0x0000000000000000-mapping.dmp

  • memory/1184-222-0x0000000000000000-mapping.dmp

  • memory/1504-74-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1504-58-0x00000000768A1000-0x00000000768A3000-memory.dmp

    Filesize

    8KB

  • memory/1504-59-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-60-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-61-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-54-0x000000002F531000-0x000000002F534000-memory.dmp

    Filesize

    12KB

  • memory/1504-63-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-66-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-67-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-65-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-62-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-70-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-71-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-69-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-68-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-73-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-76-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-64-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-57-0x000000007291D000-0x0000000072928000-memory.dmp

    Filesize

    44KB

  • memory/1504-72-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-82-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-81-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-80-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-79-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-78-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-77-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-84-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-83-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-85-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-86-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-87-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-94-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-109-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-75-0x0000000000501000-0x0000000000505000-memory.dmp

    Filesize

    16KB

  • memory/1504-385-0x000000007291D000-0x0000000072928000-memory.dmp

    Filesize

    44KB

  • memory/1504-383-0x000000007291D000-0x0000000072928000-memory.dmp

    Filesize

    44KB

  • memory/1504-55-0x0000000071931000-0x0000000071933000-memory.dmp

    Filesize

    8KB

  • memory/1732-220-0x0000000000000000-mapping.dmp

  • memory/1772-221-0x0000000000000000-mapping.dmp