Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    13-01-2022 03:06

General

  • Target

    5e9b0c9265b7d3fc1ff598bf2c6da327b90d200944fc0462f1079231b5403185.xlsm

  • Size

    83KB

  • MD5

    768a5a75fdb699b7d42714d8fb938354

  • SHA1

    88c2fad607882ebbac3bc9b885c3ad043c43282a

  • SHA256

    5e9b0c9265b7d3fc1ff598bf2c6da327b90d200944fc0462f1079231b5403185

  • SHA512

    67be206ec923b8ae81720cc43c76cbf0c2da4b3251cb537d827bbf7bb16258db862ad4b0c173f3ac44fdea2a759c477c157f60dce2466eba126d0436751656a3

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://digitalcardsbychivami.xyz/includes/KrPj/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 12 IoCs
  • Suspicious use of WriteProcessMemory 9 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\5e9b0c9265b7d3fc1ff598bf2c6da327b90d200944fc0462f1079231b5403185.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Server
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:4900
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Awiyoenbgcfgozh\szqwhecn.ezl",nWuPl
          4⤵
            PID:5060

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2700-276-0x0000000003450000-0x0000000003479000-memory.dmp

      Filesize

      164KB

    • memory/4144-119-0x00007FF836310000-0x00007FF836320000-memory.dmp

      Filesize

      64KB

    • memory/4144-120-0x000001C1AD1B0000-0x000001C1AD1B2000-memory.dmp

      Filesize

      8KB

    • memory/4144-121-0x000001C1AD1B0000-0x000001C1AD1B2000-memory.dmp

      Filesize

      8KB

    • memory/4144-122-0x000001C1AD1B0000-0x000001C1AD1B2000-memory.dmp

      Filesize

      8KB

    • memory/4144-115-0x00007FF836310000-0x00007FF836320000-memory.dmp

      Filesize

      64KB

    • memory/4144-118-0x00007FF836310000-0x00007FF836320000-memory.dmp

      Filesize

      64KB

    • memory/4144-117-0x00007FF836310000-0x00007FF836320000-memory.dmp

      Filesize

      64KB

    • memory/4144-116-0x00007FF836310000-0x00007FF836320000-memory.dmp

      Filesize

      64KB

    • memory/4900-277-0x0000000000150000-0x00000000001FE000-memory.dmp

      Filesize

      696KB