Analysis

  • max time kernel
    153s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 08:07

General

  • Target

    91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758.exe

  • Size

    2.9MB

  • MD5

    167d1f7c7288ab824af9c18a09145102

  • SHA1

    e0eb15a2897c257a1af93047e49e45999d859fe5

  • SHA256

    91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758

  • SHA512

    dd34ee7be017fdb72ce9ac416784196588d7cee711401af377e534a302f994ae10de0311e41e9d286ace1d1fb86b45e3c6e87066868a1ae26cb3e8fa5e9a1d11

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 49 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\91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758.exe
    "C:\Users\Admin\AppData\Local\Temp\91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3192
    • 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:384
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3592
  • 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:1544
  • 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:2768

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

    167d1f7c7288ab824af9c18a09145102

    SHA1

    e0eb15a2897c257a1af93047e49e45999d859fe5

    SHA256

    91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758

    SHA512

    dd34ee7be017fdb72ce9ac416784196588d7cee711401af377e534a302f994ae10de0311e41e9d286ace1d1fb86b45e3c6e87066868a1ae26cb3e8fa5e9a1d11

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

    167d1f7c7288ab824af9c18a09145102

    SHA1

    e0eb15a2897c257a1af93047e49e45999d859fe5

    SHA256

    91dddb4e611f8c67d861725d881562cb4b0660f1d071713b4cc8b8d2f1767758

    SHA512

    dd34ee7be017fdb72ce9ac416784196588d7cee711401af377e534a302f994ae10de0311e41e9d286ace1d1fb86b45e3c6e87066868a1ae26cb3e8fa5e9a1d11

  • memory/384-137-0x00000000002B0000-0x0000000000A0F000-memory.dmp
    Filesize

    7.4MB

  • memory/384-138-0x00000000002B0000-0x0000000000A0F000-memory.dmp
    Filesize

    7.4MB

  • memory/384-139-0x00000000002B0000-0x0000000000A0F000-memory.dmp
    Filesize

    7.4MB

  • memory/384-140-0x00000000002B0000-0x0000000000A0F000-memory.dmp
    Filesize

    7.4MB

  • memory/3192-130-0x0000000077804000-0x0000000077806000-memory.dmp
    Filesize

    8KB

  • memory/3192-131-0x0000000000C00000-0x000000000135F000-memory.dmp
    Filesize

    7.4MB

  • memory/3192-132-0x0000000000C00000-0x000000000135F000-memory.dmp
    Filesize

    7.4MB

  • memory/3192-133-0x0000000000C00000-0x000000000135F000-memory.dmp
    Filesize

    7.4MB

  • memory/3192-134-0x0000000000C00000-0x000000000135F000-memory.dmp
    Filesize

    7.4MB