Analysis

  • max time kernel
    152s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 15:34

General

  • Target

    61c3a214ee22dd360005d8f2ca6a471c194ee50ee9c7f95b5e3d42d50b41098b.xls

  • Size

    218KB

  • MD5

    5bd32cc77341e5cf5336b05134e23618

  • SHA1

    dc768ea07aa1f3466e079cd9b48dcd60fae2cc75

  • SHA256

    61c3a214ee22dd360005d8f2ca6a471c194ee50ee9c7f95b5e3d42d50b41098b

  • SHA512

    c5fe2adc5c750980b18b01f1c795d3af996490dd7865756a2939d8838ed8fc7907beb9e5697f932960352f8d45c3b5aea35b7d596b8706d7f28842b97bafbd99

  • SSDEEP

    6144:YSsm6m1gxv7yZmspH7+cclKisRaRiXViz1Uzkw/a2Qp53Z9xoZSw:ZkwodZ9x

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 4 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\61c3a214ee22dd360005d8f2ca6a471c194ee50ee9c7f95b5e3d42d50b41098b.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:1516
    • 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:1728
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:572
    • 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:1548
    • 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:1528

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/572-223-0x0000000000000000-mapping.dmp
  • memory/1516-76-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-88-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-57-0x0000000071FBD000-0x0000000071FC8000-memory.dmp
    Filesize

    44KB

  • memory/1516-58-0x0000000075841000-0x0000000075843000-memory.dmp
    Filesize

    8KB

  • memory/1516-59-0x0000000071FBD000-0x0000000071FC8000-memory.dmp
    Filesize

    44KB

  • memory/1516-60-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-61-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-62-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-63-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-64-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-65-0x00000000004BD000-0x00000000004C5000-memory.dmp
    Filesize

    32KB

  • memory/1516-67-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-66-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-74-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-70-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-69-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-71-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-72-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-55-0x0000000070FD1000-0x0000000070FD3000-memory.dmp
    Filesize

    8KB

  • memory/1516-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1516-68-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-73-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-78-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-79-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-77-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-80-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-83-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-84-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-82-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-81-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-87-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-86-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-85-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-54-0x000000002F3E1000-0x000000002F3E4000-memory.dmp
    Filesize

    12KB

  • memory/1516-110-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1516-75-0x00000000004BF000-0x00000000004C8000-memory.dmp
    Filesize

    36KB

  • memory/1528-222-0x0000000000000000-mapping.dmp
  • memory/1548-221-0x0000000000000000-mapping.dmp
  • memory/1728-220-0x0000000000000000-mapping.dmp