Analysis

  • max time kernel
    100s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    31-01-2023 17:35

General

  • Target

    e8230e9f357de09cebe21a2374029076.xls

  • Size

    100KB

  • MD5

    e8230e9f357de09cebe21a2374029076

  • SHA1

    ab51b825c0a2e7bc5f399eeb25968b4408313210

  • SHA256

    dccb00fb16525d84c54c4365c9db769d0eff6d384c48d8f7763b18d87d89c760

  • SHA512

    15d24d3bca2d60cc9eb8e23a860a49870ddb1826b94f6348bd135ad760de3b265fbfde92eaf96da47fa4dc17d40705c8da3479860c1e9785d892b43503db5d77

  • SSDEEP

    1536:W4HPa4Rz/Sbj13z/vHfQseqZyC239kWk2jcc0lbxOrqop/WwF1blKDK3NAoKacyT:wyC23U2jcc0lbxOGmBKDoAoKxyT

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\e8230e9f357de09cebe21a2374029076.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:856
    • 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:1648
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1472
    • 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:1760
    • 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:1416

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/856-72-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-61-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/856-54-0x000000002F1E1000-0x000000002F1E4000-memory.dmp
    Filesize

    12KB

  • memory/856-58-0x0000000075D01000-0x0000000075D03000-memory.dmp
    Filesize

    8KB

  • memory/856-80-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-59-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-79-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-63-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-62-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-64-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-65-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-67-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-66-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-78-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-77-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-76-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-75-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-74-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-73-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-57-0x000000007293D000-0x0000000072948000-memory.dmp
    Filesize

    44KB

  • memory/856-55-0x0000000071951000-0x0000000071953000-memory.dmp
    Filesize

    8KB

  • memory/856-60-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-71-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-70-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-82-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-81-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-69-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-68-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-83-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-84-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-86-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-85-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-87-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-109-0x00000000008F0000-0x00000000008F4000-memory.dmp
    Filesize

    16KB

  • memory/856-385-0x000000007293D000-0x0000000072948000-memory.dmp
    Filesize

    44KB

  • memory/856-383-0x000000007293D000-0x0000000072948000-memory.dmp
    Filesize

    44KB

  • memory/1416-221-0x0000000000000000-mapping.dmp
  • memory/1472-222-0x0000000000000000-mapping.dmp
  • memory/1648-219-0x0000000000000000-mapping.dmp
  • memory/1760-220-0x0000000000000000-mapping.dmp