Analysis

  • max time kernel
    134s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2023 13:07

General

  • Target

    Agenzia_Entrate.url

  • Size

    204B

  • MD5

    111a51917160126faf0de997749c4a84

  • SHA1

    4b872bf6d21caa3e3c56b380ddf0f7accb3343de

  • SHA256

    3c18e64435871f8e9fd9c1d379f6cb76f4a5e8c5734386ff9ae10e35fb666112

  • SHA512

    c127498748011824f160e251335414471f28e74218f6d7a4850c4e470e3147741a0ec623a695e8b55f84410c826fd39fd82a86ce37dca0771493fb47f114ec6c

Score
10/10

Malware Config

Extracted

Family

systembc

C2

62.173.140.37:4001

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Agenzia_Entrate.url
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Windows\System32\control.exe
      "C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FG4P7PGK\config[1].cpl",
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4864
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FG4P7PGK\config[1].cpl",
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2068
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FG4P7PGK\config[1].cpl",
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          PID:1780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FG4P7PGK\config[1].cpl

    Filesize

    1.6MB

    MD5

    509b68725e595b30fb2f38c8ea2cf9c4

    SHA1

    1aff17b87ff213c1a8f4c8cfe48782e636b6fb32

    SHA256

    4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558

    SHA512

    dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FG4P7PGK\config[1].cpl

    Filesize

    1.6MB

    MD5

    509b68725e595b30fb2f38c8ea2cf9c4

    SHA1

    1aff17b87ff213c1a8f4c8cfe48782e636b6fb32

    SHA256

    4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558

    SHA512

    dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389

  • memory/1780-6-0x00000000032A0000-0x00000000033A9000-memory.dmp

    Filesize

    1.0MB

  • memory/1780-7-0x00000000015B0000-0x00000000015B7000-memory.dmp

    Filesize

    28KB