Analysis

  • max time kernel
    100s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    20-01-2022 08:19

General

  • Target

    dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8.exe

  • Size

    3.3MB

  • MD5

    a997db4429053e504cd9d4afaab825cd

  • SHA1

    c0f15b9aaf8876619b9dbe08e429a024d646b867

  • SHA256

    dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8

  • SHA512

    84bf29ec7b74577c801507d2f08de15b64d3940650067f12a9433924305fa4741593e08b91cb75100c39590f769a9c63b7c3d14faaf9c8d675de35b1a7636117

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Executes dropped EXE 1 IoCs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Drops startup file 1 IoCs
  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8.exe
    "C:\Users\Admin\AppData\Local\Temp\dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8.exe"
    1⤵
    • Checks BIOS information in registry
    • Drops startup file
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:3456
    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: AddClipboardFormatListener
      PID:1244
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 16f05dd985d41491e66841c4dcd3fc57 9NmQLr7boU+nlcCKvkrEQQ.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:1904
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k wusvcs -p
    1⤵
      PID:2216

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    2
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    3
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a997db4429053e504cd9d4afaab825cd

      SHA1

      c0f15b9aaf8876619b9dbe08e429a024d646b867

      SHA256

      dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8

      SHA512

      84bf29ec7b74577c801507d2f08de15b64d3940650067f12a9433924305fa4741593e08b91cb75100c39590f769a9c63b7c3d14faaf9c8d675de35b1a7636117

    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a997db4429053e504cd9d4afaab825cd

      SHA1

      c0f15b9aaf8876619b9dbe08e429a024d646b867

      SHA256

      dca68095317df735cbaac8724a3d4af4aa504d1b58e30699388b67ec44a0e5b8

      SHA512

      84bf29ec7b74577c801507d2f08de15b64d3940650067f12a9433924305fa4741593e08b91cb75100c39590f769a9c63b7c3d14faaf9c8d675de35b1a7636117

    • memory/1244-135-0x00007FF6AC9C0000-0x00007FF6AD2DA000-memory.dmp
      Filesize

      9.1MB

    • memory/1244-136-0x00007FF6AC9C0000-0x00007FF6AD2DA000-memory.dmp
      Filesize

      9.1MB

    • memory/1244-137-0x00007FF6AC9C0000-0x00007FF6AD2DA000-memory.dmp
      Filesize

      9.1MB

    • memory/3456-130-0x00007FF7D7FA0000-0x00007FF7D88BA000-memory.dmp
      Filesize

      9.1MB

    • memory/3456-131-0x00007FF7D7FA0000-0x00007FF7D88BA000-memory.dmp
      Filesize

      9.1MB

    • memory/3456-132-0x00007FF7D7FA0000-0x00007FF7D88BA000-memory.dmp
      Filesize

      9.1MB