Analysis

  • max time kernel
    165s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 15:07

General

  • Target

    1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011.exe

  • Size

    2.8MB

  • MD5

    bad0db39ff38f874c1cce6b59d3203ab

  • SHA1

    c58461e1d930a917ba6553bf26e31ad438dfcbea

  • SHA256

    1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011

  • SHA512

    256a195de7825b771a1aa5f546852b77b90b8b1f2c5e4178d7abf520b4cbd880a853af1d82d5e88db3502652e9afc2d507b920540a8944d76df71fd1a570f19d

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 50 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\1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011.exe
    "C:\Users\Admin\AppData\Local\Temp\1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3984
    • 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:3448
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2808
  • 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:208
  • 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:1972

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

    bad0db39ff38f874c1cce6b59d3203ab

    SHA1

    c58461e1d930a917ba6553bf26e31ad438dfcbea

    SHA256

    1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011

    SHA512

    256a195de7825b771a1aa5f546852b77b90b8b1f2c5e4178d7abf520b4cbd880a853af1d82d5e88db3502652e9afc2d507b920540a8944d76df71fd1a570f19d

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

    bad0db39ff38f874c1cce6b59d3203ab

    SHA1

    c58461e1d930a917ba6553bf26e31ad438dfcbea

    SHA256

    1eaab711efe047594f241a0386854db64475c1bb77a75a92e5daa8b6c424e011

    SHA512

    256a195de7825b771a1aa5f546852b77b90b8b1f2c5e4178d7abf520b4cbd880a853af1d82d5e88db3502652e9afc2d507b920540a8944d76df71fd1a570f19d

  • memory/3448-137-0x0000000000460000-0x0000000000BAD000-memory.dmp
    Filesize

    7.3MB

  • memory/3448-138-0x0000000000460000-0x0000000000BAD000-memory.dmp
    Filesize

    7.3MB

  • memory/3448-139-0x0000000000460000-0x0000000000BAD000-memory.dmp
    Filesize

    7.3MB

  • memory/3448-140-0x0000000000460000-0x0000000000BAD000-memory.dmp
    Filesize

    7.3MB

  • memory/3984-130-0x0000000000C80000-0x00000000013CD000-memory.dmp
    Filesize

    7.3MB

  • memory/3984-131-0x0000000000C80000-0x00000000013CD000-memory.dmp
    Filesize

    7.3MB

  • memory/3984-132-0x0000000077C44000-0x0000000077C46000-memory.dmp
    Filesize

    8KB

  • memory/3984-133-0x0000000000C80000-0x00000000013CD000-memory.dmp
    Filesize

    7.3MB

  • memory/3984-134-0x0000000000C80000-0x00000000013CD000-memory.dmp
    Filesize

    7.3MB