Analysis

  • max time kernel
    112s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 15:40

General

  • Target

    5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba.xls

  • Size

    118KB

  • MD5

    f5e229509c3d4a460b21f305f3b4419c

  • SHA1

    95e91b3223ad8aed5391baf3edb5529f7a67aacb

  • SHA256

    5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba

  • SHA512

    abd222d2ee822fafbfe510c586dcd5683e2b276df0befd907cb9a0ec5e738412711262137bbd534487688fe9798b43ab0a0d447515864fcef3dda7c92a84c326

  • SSDEEP

    3072:d3V/0m+zjWVbauzQ7ITk9f2AJtXw55ksk:dqC2

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\5c50dbc8fa64024ba74d6af4dce9e076dc095152caf9d4f96df2dcfd5c06b3ba.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:2012
    • 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:1276
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1900
    • 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:560
    • 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:1948

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/560-220-0x0000000000000000-mapping.dmp
  • memory/1276-219-0x0000000000000000-mapping.dmp
  • memory/1900-222-0x0000000000000000-mapping.dmp
  • memory/1948-221-0x0000000000000000-mapping.dmp
  • memory/2012-74-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-223-0x00000000727AD000-0x00000000727B8000-memory.dmp
    Filesize

    44KB

  • memory/2012-61-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-75-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-62-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-64-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-65-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-63-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-67-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-66-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-69-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-68-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-70-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-71-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-72-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-73-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-54-0x000000002F8E1000-0x000000002F8E4000-memory.dmp
    Filesize

    12KB

  • memory/2012-76-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-60-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-59-0x0000000000610000-0x0000000000618000-memory.dmp
    Filesize

    32KB

  • memory/2012-79-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-78-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-80-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-81-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-82-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-85-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-84-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-83-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-86-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-87-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-109-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-58-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
    Filesize

    8KB

  • memory/2012-57-0x00000000727AD000-0x00000000727B8000-memory.dmp
    Filesize

    44KB

  • memory/2012-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2012-55-0x00000000717C1000-0x00000000717C3000-memory.dmp
    Filesize

    8KB

  • memory/2012-77-0x0000000000618000-0x000000000061C000-memory.dmp
    Filesize

    16KB

  • memory/2012-385-0x00000000727AD000-0x00000000727B8000-memory.dmp
    Filesize

    44KB