Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-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 17 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
  • Loads dropped DLL 4 IoCs
  • Themida packer 17 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 32 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
    • Loads dropped DLL
    • 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:2804
    • \??\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
      • Loads dropped DLL
      • 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:1624
      • \??\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
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2380
        • \??\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
          • Loads dropped DLL
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2740
          • \??\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:2808
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 00:39 /f
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2700
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 00:40 /f
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1780
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 00:41 /f
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:840
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2548

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    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\Themes\explorer.exe
      Filesize

      2.6MB

      MD5

      d6d7e32d80eebd2f70085cbd597cbff8

      SHA1

      b6127656e400d8a55b05e0465292a66612a22bf7

      SHA256

      d1e9d2311676c05cfbf25ffb77710e14db2a71a675eae1d483804c2af903c01b

      SHA512

      609ca32f6f515e0834eea954261bf3bed32e394e04eb9a37fdd5fae2e176d42c3d882ee993a0d2e5e0caf33df59f78dcde20951185f71d5d878252fda881595b

    • C:\Windows\Resources\spoolsv.exe
      Filesize

      2.6MB

      MD5

      b4cf877e1c909ad2e3222c19608f582e

      SHA1

      5a98dc97424b3d1ddde1dd84ab22a8f326979f19

      SHA256

      d166feb8d24ddcc8f58ad6b9c5c008c9b06b47fcdedd11da7cb20f2a8a1d2119

      SHA512

      be2cdb7cf0fb74c1c232179577e9b1575698d56a874ff2195582184e6d3ded175e79c195d3842bad3a6414046b7d07ca0f9490fe9c56ac6ed1255f6dba105c1c

    • \Windows\Resources\svchost.exe
      Filesize

      2.6MB

      MD5

      31b71ae390f245e2dfa9a258e09ba483

      SHA1

      4b9ccb7245df5107cfc9c091814ef551c2b7fe47

      SHA256

      b99c54ca5e5a6b14d7e64d137f59c522cb9aaa0e3a616de0ad9010577af45a04

      SHA512

      bdc2fd9447f441a65fff8ad6548b515381230f9e581582d1130ee259a6d7ae910d8e780ea8ee923ef101013e1e0babac286a815b8189346f3b6b367dfed26d22

    • memory/1624-52-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-12-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-66-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-62-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-58-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-53-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/1624-54-0x0000000003850000-0x0000000003E66000-memory.dmp
      Filesize

      6.1MB

    • memory/2380-50-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2380-34-0x0000000003700000-0x0000000003D16000-memory.dmp
      Filesize

      6.1MB

    • memory/2380-23-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2740-42-0x0000000003400000-0x0000000003A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2740-35-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2740-55-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2804-51-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2804-0-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2804-1-0x00000000770B0000-0x00000000770B2000-memory.dmp
      Filesize

      8KB

    • memory/2804-11-0x00000000038A0000-0x0000000003EB6000-memory.dmp
      Filesize

      6.1MB

    • memory/2808-43-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB

    • memory/2808-49-0x0000000000400000-0x0000000000A16000-memory.dmp
      Filesize

      6.1MB