Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-05-2021 12:58

General

  • Target

    catalog-246484755.xls

  • Size

    367KB

  • MD5

    4202510d10185f6f3b811f261a365870

  • SHA1

    c5142a69e1903cd1e6d797e171fb6f080062c8d2

  • SHA256

    c23077ac89e3ead5440e855f4c430bb3efe97d6dc4674e4ae961f7eb32221011

  • SHA512

    20454e1fda2f34d876cdf9312e4f5f0bb9a7a2896553d54aa50712421dbaa3c8313b1637afa035c5d7f63419de09baed4c2c8e115d6a911af5c71294a031a119

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\catalog-246484755.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:488
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\tuti.rut,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:4028
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\tuti.rut1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1672

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/488-114-0x00007FF707680000-0x00007FF70AC36000-memory.dmp
    Filesize

    53.7MB

  • memory/488-115-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp
    Filesize

    64KB

  • memory/488-116-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp
    Filesize

    64KB

  • memory/488-117-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp
    Filesize

    64KB

  • memory/488-118-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp
    Filesize

    64KB

  • memory/488-121-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp
    Filesize

    64KB

  • memory/488-122-0x00007FFED4AD0000-0x00007FFED5BBE000-memory.dmp
    Filesize

    16.9MB

  • memory/488-123-0x00007FFED2BD0000-0x00007FFED4AC5000-memory.dmp
    Filesize

    31.0MB

  • memory/1672-180-0x0000000000000000-mapping.dmp
  • memory/4028-179-0x0000000000000000-mapping.dmp