Analysis

  • max time kernel
    165s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 14:08

General

  • Target

    3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f.exe

  • Size

    2.7MB

  • MD5

    23a5092fa3cbf14752251aaec42e8b57

  • SHA1

    b5bc590b04916378f6b6aaafb0cc8e393fa9b441

  • SHA256

    3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f

  • SHA512

    cf08c9f3d4747dd8c9b30b2e1ec27a1a7542da47890a5e212b108cc4c23338ff6d304140af69f164915695b85ff8b4f172fd168d9ec04370ce8a4a7280a6ebd4

Malware Config

Signatures

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

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

  • 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
  • Drops file in Windows directory 3 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 51 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f.exe
    "C:\Users\Admin\AppData\Local\Temp\3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
      "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      PID:4008
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2640
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:4052
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3324

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

    MD5

    23a5092fa3cbf14752251aaec42e8b57

    SHA1

    b5bc590b04916378f6b6aaafb0cc8e393fa9b441

    SHA256

    3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f

    SHA512

    cf08c9f3d4747dd8c9b30b2e1ec27a1a7542da47890a5e212b108cc4c23338ff6d304140af69f164915695b85ff8b4f172fd168d9ec04370ce8a4a7280a6ebd4

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

    MD5

    23a5092fa3cbf14752251aaec42e8b57

    SHA1

    b5bc590b04916378f6b6aaafb0cc8e393fa9b441

    SHA256

    3ceb966c86934a43bcf79bccfefe087f3aff40d8dc9fab18cbd6d8c7ad292e9f

    SHA512

    cf08c9f3d4747dd8c9b30b2e1ec27a1a7542da47890a5e212b108cc4c23338ff6d304140af69f164915695b85ff8b4f172fd168d9ec04370ce8a4a7280a6ebd4

  • memory/1908-130-0x0000000077644000-0x0000000077646000-memory.dmp

    Filesize

    8KB

  • memory/1908-131-0x00000000007E0000-0x0000000000ED0000-memory.dmp

    Filesize

    6.9MB

  • memory/1908-132-0x00000000007E0000-0x0000000000ED0000-memory.dmp

    Filesize

    6.9MB

  • memory/1908-133-0x00000000007E0000-0x0000000000ED0000-memory.dmp

    Filesize

    6.9MB

  • memory/4008-136-0x0000000000900000-0x0000000000FF0000-memory.dmp

    Filesize

    6.9MB

  • memory/4008-137-0x0000000000900000-0x0000000000FF0000-memory.dmp

    Filesize

    6.9MB

  • memory/4008-138-0x0000000000900000-0x0000000000FF0000-memory.dmp

    Filesize

    6.9MB