Analysis

  • max time kernel
    150s
  • max time network
    66s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 00:36

General

  • Target

    9c15135aa3b66b89f5070a049524fd93111390cc470a667a7d0de6bcca33762b.exe

  • Size

    2.6MB

  • MD5

    c7c411d41a330167ac7abaa2137b4c53

  • SHA1

    3e62689f23ae159b6cf3547fbaaffd425444a653

  • SHA256

    9c15135aa3b66b89f5070a049524fd93111390cc470a667a7d0de6bcca33762b

  • SHA512

    61a3cf287a61526ca8381cf693b0b3ba6dc8478b0c77f24776eab07244e1b13976688efb3f744cfa64020fcda9e7ea0165679eb97015330cc31e8804346a03a1

  • SSDEEP

    49152:+XzhpDtKSK1cb8PGK+Tfuqmpc3elWo8GnQAsYZEVX:+XzhW148Pd+Tf1mpcOldJQ3/VX

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 16 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Themida packer 16 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c15135aa3b66b89f5070a049524fd93111390cc470a667a7d0de6bcca33762b.exe
    "C:\Users\Admin\AppData\Local\Temp\9c15135aa3b66b89f5070a049524fd93111390cc470a667a7d0de6bcca33762b.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1784
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:920
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1732
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1388
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:2268

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

2
T1112

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:\Windows\Resources\spoolsv.exe
    Filesize

    2.6MB

    MD5

    907ce76d094e58bccbd2fd40762ea7f9

    SHA1

    9213557bccd03f0973dc97ec5faf0096f588cb69

    SHA256

    84c57d544548a3adba7b4d71ce9568e353c283ae6e0332ff4aa1159447b4f0af

    SHA512

    631515d1e04947672d058cd86da8238d3545d27b96e2d4e5725b128ad65d6e8d73c1c90dec27f06672ccce0d4c52037b47219061ac4ad29b68ea85c563a6f8f4

  • \??\c:\windows\resources\svchost.exe
    Filesize

    2.6MB

    MD5

    69c3103e7a94a1407219ba3570dad8eb

    SHA1

    7a052681a13aed66f4a5e26cd2a7e993068d38a0

    SHA256

    af5e23ce3a848d7e677e71c1b1bf74caa7684c68120ebb9141c40d344ce9bae7

    SHA512

    1b37b2de150b477e51500b91fd0499962e9512b1c60ecfbd656ef88efde4aab96f80f42783fd53ff51a02e7163b9429c00f5a3bb831aedf43e344d766b1bd25d

  • \??\c:\windows\resources\themes\explorer.exe
    Filesize

    2.6MB

    MD5

    0e3a8a4a1876ec1998f7deb69f026496

    SHA1

    4222526611ef4aac16fcabd059adcaa5b8129dcb

    SHA256

    ac7dd0465f9e8fb7f5500d4a8b940793a6004c12cc18911178dc3a6b6e49a20a

    SHA512

    eb3efb67e8c77cc2a51101163979893177bddd17f4ba533f767f3b71c787d3f6c42dea48a860fa0dc3b46ba11bf152a184ea1d1f06ea560cf416b8112d2fdf0f

  • memory/920-42-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/920-10-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/920-60-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/920-52-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1388-43-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1388-28-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1388-65-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1732-39-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1732-19-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1784-40-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1784-0-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/1784-1-0x00000000777E4000-0x00000000777E6000-memory.dmp
    Filesize

    8KB

  • memory/2268-33-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB

  • memory/2268-41-0x0000000000400000-0x0000000000A16000-memory.dmp
    Filesize

    6.1MB