Analysis

  • max time kernel
    104s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    31-01-2023 17:28

General

  • Target

    e62151ef095f34f439fdaa2b49ed85ab.xls

  • Size

    285KB

  • MD5

    e62151ef095f34f439fdaa2b49ed85ab

  • SHA1

    5e3968aaa7aa8e28a1c1748ebc8befc76c5db8d4

  • SHA256

    599d603c93bf5cd03e3e8aa799a8b72652295a0f7fe4e600061670204af6b00e

  • SHA512

    d316ffe3d97cbeb16c1249e8fbd5d884f314812eac43ec0e916f3fe90ef5b47c8e99b45d0732e1b3963526f80037e868bea37729498b5d187d0446ab81a2df59

  • SSDEEP

    3072:hLmn79y02k3//tPffqSRRRDLuTRXnPjAYnOEHEGjq4yWJWDecBGPfeZz1HHebx8v:27Y02k3//sJOEwdMYo8J8COw8

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\e62151ef095f34f439fdaa2b49ed85ab.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:1392
    • 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:1356
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1756
    • 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:1916
    • 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:752

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/752-221-0x0000000000000000-mapping.dmp
  • memory/1356-219-0x0000000000000000-mapping.dmp
  • memory/1392-73-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1392-58-0x0000000075521000-0x0000000075523000-memory.dmp
    Filesize

    8KB

  • memory/1392-59-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-60-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-61-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-64-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-66-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-62-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-65-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-63-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-67-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-68-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-76-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-70-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-72-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-71-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-74-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-383-0x000000007225D000-0x0000000072268000-memory.dmp
    Filesize

    44KB

  • memory/1392-57-0x000000007225D000-0x0000000072268000-memory.dmp
    Filesize

    44KB

  • memory/1392-69-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-79-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-77-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-78-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-80-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-81-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-82-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-83-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-84-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-86-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-85-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-87-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-109-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-75-0x0000000000380000-0x0000000000480000-memory.dmp
    Filesize

    1024KB

  • memory/1392-385-0x000000007225D000-0x0000000072268000-memory.dmp
    Filesize

    44KB

  • memory/1392-55-0x0000000071271000-0x0000000071273000-memory.dmp
    Filesize

    8KB

  • memory/1392-54-0x000000002F531000-0x000000002F534000-memory.dmp
    Filesize

    12KB

  • memory/1756-222-0x0000000000000000-mapping.dmp
  • memory/1916-220-0x0000000000000000-mapping.dmp