Resubmissions

31/10/2022, 22:55

221031-2wcfbadhf8

31/10/2022, 22:53

221031-2t11wsdhf29

25/09/2022, 04:01

220925-elhg9adbc810

15/09/2022, 10:54

220915-mzjapsgeej9

Analysis

  • max time kernel
    91s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/09/2022, 10:54

General

  • Target
    bgdwubmodm.dll
  • Size 10.3MB
  • Sample220915-mzjapsgeej
  • SHA256 3da15b7582aa2e324d7e8a18ca4610fb20f69985b09f1c1490e6a99dcde6e305
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 12 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\bgdwubmodm.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bgdwubmodm.dll,#1
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:2688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 776
        3⤵
        • Program crash
        PID:4772
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2688 -ip 2688
    1⤵
      PID:3456

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2688-133-0x0000000077520000-0x00000000776C3000-memory.dmp

          memory/2688-134-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-135-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-136-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-137-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-138-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-139-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-140-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-141-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-142-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-143-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-144-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-145-0x00000000021B0000-0x0000000003D34000-memory.dmp

          memory/2688-146-0x0000000077520000-0x00000000776C3000-memory.dmp