Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    25-12-2021 18:03

General

  • Target

    25d69c5f67b09e17dd21e832956b43c8.exe

  • Size

    2.7MB

  • MD5

    25d69c5f67b09e17dd21e832956b43c8

  • SHA1

    fef354161268d73eb8be8f93d63f2241567df06a

  • SHA256

    e614c86dd4d0100b14e064cdbb3931d86c0393dac8ae153074bb911138722359

  • SHA512

    4970f41cdb2cf25d765251a29f1bbf9b866ca4223e126ce8e784b855dd88ef5bf4451748d23364ca860a4c07871ae76bfeeddd0d4589cabe1d6f1575011cda00

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.

  • Loads dropped DLL 1 IoCs
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25d69c5f67b09e17dd21e832956b43c8.exe
    "C:\Users\Admin\AppData\Local\Temp\25d69c5f67b09e17dd21e832956b43c8.exe"
    1⤵
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1584
    • 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:1084

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    25d69c5f67b09e17dd21e832956b43c8

    SHA1

    fef354161268d73eb8be8f93d63f2241567df06a

    SHA256

    e614c86dd4d0100b14e064cdbb3931d86c0393dac8ae153074bb911138722359

    SHA512

    4970f41cdb2cf25d765251a29f1bbf9b866ca4223e126ce8e784b855dd88ef5bf4451748d23364ca860a4c07871ae76bfeeddd0d4589cabe1d6f1575011cda00

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

    25d69c5f67b09e17dd21e832956b43c8

    SHA1

    fef354161268d73eb8be8f93d63f2241567df06a

    SHA256

    e614c86dd4d0100b14e064cdbb3931d86c0393dac8ae153074bb911138722359

    SHA512

    4970f41cdb2cf25d765251a29f1bbf9b866ca4223e126ce8e784b855dd88ef5bf4451748d23364ca860a4c07871ae76bfeeddd0d4589cabe1d6f1575011cda00

  • memory/1084-60-0x0000000000000000-mapping.dmp
  • memory/1084-63-0x0000000000120000-0x000000000080D000-memory.dmp
    Filesize

    6.9MB

  • memory/1084-64-0x0000000000120000-0x000000000080D000-memory.dmp
    Filesize

    6.9MB

  • memory/1084-66-0x0000000000120000-0x000000000080D000-memory.dmp
    Filesize

    6.9MB

  • memory/1084-65-0x0000000000120000-0x000000000080D000-memory.dmp
    Filesize

    6.9MB

  • memory/1584-54-0x0000000076121000-0x0000000076123000-memory.dmp
    Filesize

    8KB

  • memory/1584-55-0x00000000012C0000-0x00000000019AD000-memory.dmp
    Filesize

    6.9MB

  • memory/1584-56-0x00000000012C0000-0x00000000019AD000-memory.dmp
    Filesize

    6.9MB

  • memory/1584-57-0x00000000012C0000-0x00000000019AD000-memory.dmp
    Filesize

    6.9MB

  • memory/1584-58-0x00000000012C0000-0x00000000019AD000-memory.dmp
    Filesize

    6.9MB