Analysis

  • max time kernel
    118s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    29-03-2022 18:02

General

  • Target

    04981834becf18d3203eb1b21d6b377df3b840c2fdc24bf358b9362ada387c20.xlsb

  • Size

    357KB

  • MD5

    7049e29713a7bb517a3a7920df5dbac1

  • SHA1

    f119cf61514483d27d35c29487dfdc242ad1e6df

  • SHA256

    04981834becf18d3203eb1b21d6b377df3b840c2fdc24bf358b9362ada387c20

  • SHA512

    dc4516b7d6885aca1037e411ef49b4f183fe2d275b030e3e0536bb96583156a16f08d3cfa58bc377b4baaa844f37f7248696e40bbfc46ed0dc949133e49d751b

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://alpine.kz/ds/161120.gif

Signatures

  • Program crash 1 IoCs
  • 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
  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 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\04981834becf18d3203eb1b21d6b377df3b840c2fdc24bf358b9362ada387c20.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:3508
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
    1⤵
    • Modifies data under HKEY_USERS
    PID:556
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 476 -p 4652 -ip 4652
    1⤵
      PID:1512
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 4652 -s 2076
      1⤵
      • Program crash
      PID:3904

    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/3508-134-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-135-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-136-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-137-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-138-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-139-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-140-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-141-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB

    • memory/3508-142-0x00007FFCC98D0000-0x00007FFCC98E0000-memory.dmp
      Filesize

      64KB