Analysis

  • max time kernel
    152s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 23:45

General

  • Target
    document[2023.10.11_08-07]_3.vbs
  • Size 1012KB
  • Sample231011-3rqmtaec24
  • SHA256 93d1e2cb11d3c40ce8f90faf5168e72b2a246688255b12a22c17dba101cf79b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • icedid

Campaign
  • 361893872

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

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

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

  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\document[2023.10.11_08-07]_3.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C://windows/Temp/0291-1.dll
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4800
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C rundll32.exe C:\Users\Admin\AppData\Local\{4307E483-7DEB-F2F1-1484-025E1E04D957}\Ojrepaacnn.dll,#1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2580
        • C:\Windows\system32\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\{4307E483-7DEB-F2F1-1484-025E1E04D957}\Ojrepaacnn.dll,#1
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Modifies registry class
          PID:1692

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Ojrepaacnn.dll

        • Path C:\Users\Admin\AppData\Local\{4307E483-7DEB-F2F1-1484-025E1E04D957}\Ojrepaacnn.dll
        • Size 583KB
        • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
        • MD5 SHA1 SHA512 SSDEEP

        Ojrepaacnn.dll

        • Path C:\Users\Admin\AppData\Local\{4307E483-7DEB-F2F1-1484-025E1E04D957}\Ojrepaacnn.dll
        • Size 583KB
        • SHA256 5d5bc4f497406b59369901b9a79e1e9d1e0a690c0b2e803f4fbfcb391bcfeef1
        • MD5 SHA1 SHA512 SSDEEP

        0291-1.dll

        • Path C:\Windows\Temp\0291-1.dll
        • Size 328KB
        • SHA256 226faebe0332ae4972d6bbc0e99553b4875322fb4336dfe3e42462d4c3624e79
        • MD5 SHA1 SHA512 SSDEEP

        0291-1.dll

        • Path C:\windows\Temp\0291-1.dll
        • Size 328KB
        • SHA256 226faebe0332ae4972d6bbc0e99553b4875322fb4336dfe3e42462d4c3624e79
        • MD5 SHA1 SHA512 SSDEEP

        memory/1692-19-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/1692-13-0x000001F049F80000-0x000001F049FCF000-memory.dmp

        memory/1692-14-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/1692-20-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/1692-21-0x000001F049F80000-0x000001F049FCF000-memory.dmp

        memory/1692-24-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/1692-25-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/1692-27-0x000001F04A140000-0x000001F04A18C000-memory.dmp

        memory/4800-9-0x0000000000A60000-0x0000000000A6D000-memory.dmp

        memory/4800-8-0x0000000000A60000-0x0000000000A6D000-memory.dmp

        memory/4800-4-0x0000000000A60000-0x0000000000A6D000-memory.dmp