Analysis

  • max time kernel
    154s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 12:42

General

  • Target

    d13b83098c64db695a0f246af5443bbc59b1d5405fd47de35d00a78c4ba5b5fd.xls

  • Size

    388KB

  • MD5

    996804b22277dab55ab4c226c56aa9c4

  • SHA1

    b6591fad505dfd39e4e42f30d00776eef0ad9772

  • SHA256

    d13b83098c64db695a0f246af5443bbc59b1d5405fd47de35d00a78c4ba5b5fd

  • SHA512

    2ca29be27157f4566533d9edcba54e6b680a4a57e87ae45a1303a544d9e602a9ed71c714f8a087245413e6b9d17621c871ed646cefe9c136b6fc90d57e2a9cba

  • SSDEEP

    6144:9yUmk6rJvZLpF/lzdHi4Y6Ap5JRpVha29HZcNNCojTFeHtjLfm+:S2DMxZ8J

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 4 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 20 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\d13b83098c64db695a0f246af5443bbc59b1d5405fd47de35d00a78c4ba5b5fd.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:896
    • 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:1256
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1556
    • 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:1344
    • 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:1716
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\d13b83098c64db695a0f246af5443bbc59b1d5405fd47de35d00a78c4ba5b5fd_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:700

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/700-339-0x0000000000000000-mapping.dmp
  • memory/896-54-0x000000002F881000-0x000000002F884000-memory.dmp
    Filesize

    12KB

  • memory/896-55-0x0000000071631000-0x0000000071633000-memory.dmp
    Filesize

    8KB

  • memory/896-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/896-57-0x0000000076411000-0x0000000076413000-memory.dmp
    Filesize

    8KB

  • memory/896-58-0x000000007261D000-0x0000000072628000-memory.dmp
    Filesize

    44KB

  • memory/896-59-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-60-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-61-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-64-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-65-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-63-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-62-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-66-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-73-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-80-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-87-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-88-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-89-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-90-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-91-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-92-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-93-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-94-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-95-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-96-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-97-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-100-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-99-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-114-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-113-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-112-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-111-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-110-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-109-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-108-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-107-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-106-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-105-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-115-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-104-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-103-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-102-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-101-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-98-0x00000000005A4000-0x00000000005A8000-memory.dmp
    Filesize

    16KB

  • memory/896-456-0x000000007261D000-0x0000000072628000-memory.dmp
    Filesize

    44KB

  • memory/1256-247-0x0000000000000000-mapping.dmp
  • memory/1344-248-0x0000000000000000-mapping.dmp
  • memory/1556-250-0x0000000000000000-mapping.dmp
  • memory/1716-249-0x0000000000000000-mapping.dmp