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
    15-12-2022 19:18

General

  • Target

    175fb8c275fa60831cc28fcc012d8432.xls

  • Size

    105KB

  • MD5

    175fb8c275fa60831cc28fcc012d8432

  • SHA1

    838ffd4200a641e2dfd9d5e186b626931639a18b

  • SHA256

    e62e827c3158ed598b12f10cf3d4627156992f7a8bf372183b720cd35e808f2f

  • SHA512

    9e13eb544461be8629fb153eb579ddaccc9bc97bcf61385eeaa51bce307136c3be33b4f0c50bdb375e1697b62a39be8b28a0d000c9fc623a4c5250028c65eee1

  • SSDEEP

    1536:bV44443CTICiGr9HhqRJszxSQKZ95OW1V4EWVbrzQ71avTkiD2S1O/WwF1J3M2MT:wwWVbrzQ74vTkDeMe5kbin

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\175fb8c275fa60831cc28fcc012d8432.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:1636
    • 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:1904
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:768
    • 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:1684
    • 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:1020

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/768-222-0x0000000000000000-mapping.dmp
  • memory/1020-221-0x0000000000000000-mapping.dmp
  • memory/1636-76-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-63-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-58-0x00000000762F1000-0x00000000762F3000-memory.dmp
    Filesize

    8KB

  • memory/1636-73-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-59-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-80-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-62-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-79-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-64-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-65-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-66-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-67-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-68-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-69-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-70-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-71-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-72-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-75-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-54-0x000000002FA91000-0x000000002FA94000-memory.dmp
    Filesize

    12KB

  • memory/1636-74-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-61-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1636-60-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-78-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-77-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-83-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-84-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-82-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-81-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-86-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-85-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-87-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-109-0x000000000070C000-0x0000000000715000-memory.dmp
    Filesize

    36KB

  • memory/1636-387-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1636-385-0x0000000000711000-0x0000000000713000-memory.dmp
    Filesize

    8KB

  • memory/1636-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1636-55-0x0000000071C11000-0x0000000071C13000-memory.dmp
    Filesize

    8KB

  • memory/1636-374-0x0000000000711000-0x0000000000713000-memory.dmp
    Filesize

    8KB

  • memory/1636-384-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1684-220-0x0000000000000000-mapping.dmp
  • memory/1904-219-0x0000000000000000-mapping.dmp