Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 01:31

General

  • Target

    a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84.exe

  • Size

    2.7MB

  • MD5

    175d34c56247598761c5f65b547665ff

  • SHA1

    1dbb68bc972c440b3d34bd2398f975e335b66e84

  • SHA256

    a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84

  • SHA512

    53dea2a52acf83c944e105ebb5a5d1c52c6e5808076ae19c6b395fa1f85a61dba13e8050008704224481c509e067acb812a8a09212d1c3b6a716a12536039ae3

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 10 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 53 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\a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84.exe
    "C:\Users\Admin\AppData\Local\Temp\a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3016
    • 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:3508
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1460
  • 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:2784
  • 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:3308

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    175d34c56247598761c5f65b547665ff

    SHA1

    1dbb68bc972c440b3d34bd2398f975e335b66e84

    SHA256

    a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84

    SHA512

    53dea2a52acf83c944e105ebb5a5d1c52c6e5808076ae19c6b395fa1f85a61dba13e8050008704224481c509e067acb812a8a09212d1c3b6a716a12536039ae3

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    175d34c56247598761c5f65b547665ff

    SHA1

    1dbb68bc972c440b3d34bd2398f975e335b66e84

    SHA256

    a9e66bd4bc9e965c2df6cd98992c6b9873c1a3cc23e8a0d809b92c444f7f1c84

    SHA512

    53dea2a52acf83c944e105ebb5a5d1c52c6e5808076ae19c6b395fa1f85a61dba13e8050008704224481c509e067acb812a8a09212d1c3b6a716a12536039ae3

  • memory/3016-130-0x0000000000FE0000-0x00000000016D7000-memory.dmp
    Filesize

    7.0MB

  • memory/3016-131-0x0000000000FE0000-0x00000000016D7000-memory.dmp
    Filesize

    7.0MB

  • memory/3016-132-0x0000000000FE0000-0x00000000016D7000-memory.dmp
    Filesize

    7.0MB

  • memory/3016-133-0x0000000000FE0000-0x00000000016D7000-memory.dmp
    Filesize

    7.0MB

  • memory/3016-134-0x00000000773D4000-0x00000000773D6000-memory.dmp
    Filesize

    8KB

  • memory/3508-137-0x00000000003B0000-0x0000000000AA7000-memory.dmp
    Filesize

    7.0MB

  • memory/3508-138-0x00000000003B0000-0x0000000000AA7000-memory.dmp
    Filesize

    7.0MB

  • memory/3508-139-0x00000000003B0000-0x0000000000AA7000-memory.dmp
    Filesize

    7.0MB

  • memory/3508-140-0x00000000003B0000-0x0000000000AA7000-memory.dmp
    Filesize

    7.0MB