Analysis

  • max time kernel
    158s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 13:41

General

  • Target

    4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79.exe

  • Size

    2.7MB

  • MD5

    84f53b26739d97cbdcd526c5ec88715d

  • SHA1

    ab1d8d6a13e3c2793408944a83e4dec04a919f14

  • SHA256

    4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79

  • SHA512

    b825c54e4806165392bc9aff674cf88774e977ac7cf1ec3b40dab4fa04f1c120d1d637a2892a86dd55ffc5a1e26cf2e4e23251c99cd03bd213ba39b0c66dcaca

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 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\4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79.exe
    "C:\Users\Admin\AppData\Local\Temp\4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3848
    • 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:1616
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3796
  • 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:2340
  • 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:3604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    84f53b26739d97cbdcd526c5ec88715d

    SHA1

    ab1d8d6a13e3c2793408944a83e4dec04a919f14

    SHA256

    4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79

    SHA512

    b825c54e4806165392bc9aff674cf88774e977ac7cf1ec3b40dab4fa04f1c120d1d637a2892a86dd55ffc5a1e26cf2e4e23251c99cd03bd213ba39b0c66dcaca

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

    MD5

    84f53b26739d97cbdcd526c5ec88715d

    SHA1

    ab1d8d6a13e3c2793408944a83e4dec04a919f14

    SHA256

    4a28b94c2370f23f68f78368ba399ee38aaedf3afa52eaf6f84b394e3e435a79

    SHA512

    b825c54e4806165392bc9aff674cf88774e977ac7cf1ec3b40dab4fa04f1c120d1d637a2892a86dd55ffc5a1e26cf2e4e23251c99cd03bd213ba39b0c66dcaca

  • memory/1616-137-0x0000000000100000-0x00000000007F7000-memory.dmp

    Filesize

    7.0MB

  • memory/1616-138-0x0000000000100000-0x00000000007F7000-memory.dmp

    Filesize

    7.0MB

  • memory/1616-139-0x0000000000100000-0x00000000007F7000-memory.dmp

    Filesize

    7.0MB

  • memory/1616-140-0x0000000000100000-0x00000000007F7000-memory.dmp

    Filesize

    7.0MB

  • memory/3848-130-0x0000000077204000-0x0000000077206000-memory.dmp

    Filesize

    8KB

  • memory/3848-131-0x0000000000950000-0x0000000001047000-memory.dmp

    Filesize

    7.0MB

  • memory/3848-132-0x0000000000950000-0x0000000001047000-memory.dmp

    Filesize

    7.0MB

  • memory/3848-133-0x0000000000950000-0x0000000001047000-memory.dmp

    Filesize

    7.0MB

  • memory/3848-134-0x0000000000950000-0x0000000001047000-memory.dmp

    Filesize

    7.0MB