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Analysis

  • max time kernel
    38s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 10:18

General

  • Target

    Ana.exe

  • Size

    2.1MB

  • MD5

    f571faca510bffe809c76c1828d44523

  • SHA1

    7a3ca1660f0a513316b8cd5496ac7dbe82f0e0c2

  • SHA256

    117d7af0deb40b3fe532bb6cbe374884fa55ed7cfe053fe698720cdccb5a59cb

  • SHA512

    a08bca2fb1387cc70b737520d566c7117aa3fdb9a52f5dbb0bb7be44630da7977882d8c808cbee843c8a180777b4ac5819e8bafda6b2c883e380dc7fb5358a51

  • SSDEEP

    49152:OwVYlfBUDiZx8Fa/Q0NuB3btlnCItWNSwoy:OxPUDQmso0NuBZlnCItM

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 13 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ana.exe
    "C:\Users\Admin\AppData\Local\Temp\Ana.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\AV.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV.EXE"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3044
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 828
        3⤵
          PID:2660
      • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
        "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3024
        • C:\ProgramData\iA17766JgEfP17766\iA17766JgEfP17766.exe
          "C:\ProgramData\iA17766JgEfP17766\iA17766JgEfP17766.exe" "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
          3⤵
          • Executes dropped EXE
          PID:2248
      • C:\Users\Admin\AppData\Local\Temp\DB.EXE
        "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
        2⤵
        • Adds policy Run key to start application
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2540
        • C:\Windows\SysWOW64\dplaysvrd.exe
          C:\Windows\SysWOW64\dplaysvrd.exe
          3⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2756
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe" /flushdns
            4⤵
            • Gathers network information
            PID:1936
        • C:\Windows\SysWOW64\cmd.exe
          /c C:\Users\Admin\AppData\Local\Temp\~unins2299.bat "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
          3⤵
            PID:2352
        • C:\Users\Admin\AppData\Local\Temp\EN.EXE
          "C:\Users\Admin\AppData\Local\Temp\EN.EXE"
          2⤵
          • Executes dropped EXE
          PID:2796
        • C:\Users\Admin\AppData\Local\Temp\SB.EXE
          "C:\Users\Admin\AppData\Local\Temp\SB.EXE"
          2⤵
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of AdjustPrivilegeToken
          PID:2888

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\AV2

        Filesize

        208B

        MD5

        be324c55874a988172d8d6f27544e852

        SHA1

        1a33804c4c398f015f32878e2c7bbda2fda43419

        SHA256

        97e01c7ebfb23a17a3a7607c534bcf5ed5fc01d8adcf84e51bba32a430f85203

        SHA512

        adee5ff7700d1ffc2be2b49fce6e0c5378a0cd1609c0e1ea6343d2ccdb2f0930a523dc8438e624202fe022da9a2764a5ff9598458661309ec47bdd79470047f4

      • C:\Users\Admin\AppData\Local\Temp\EN.EXE

        Filesize

        6KB

        MD5

        621f2279f69686e8547e476b642b6c46

        SHA1

        66f486cd566f86ab16015fe74f50d4515decce88

        SHA256

        c17a18cf2c243303b8a6688aad83b3e6e9b727fcd89f69065785ef7f1a2a3e38

        SHA512

        068402b02f1056b722f21b0a354b038f094d02e4a066b332553cd6b36e3640e8f35aa0499a2b057c566718c3593d3cea6bbabd961e04f0a001fd45d8be8e1c4e

      • C:\Users\Admin\AppData\Local\Temp\tsa.crt

        Filesize

        1010B

        MD5

        6e630504be525e953debd0ce831b9aa0

        SHA1

        edfa47b3edf98af94954b5b0850286a324608503

        SHA256

        2563fe2f793f119a1bae5cca6eab9d8c20409aa1f1e0db341c623e1251244ef5

        SHA512

        bbcf285309a4d5605e19513c77ef077a4c451cbef04e3cbdfec6d15cc157a9800a7ff6f70964b0452ddb939ff50766e887904eda06a9999fdedf5b2e8776ebd2

      • C:\Users\Admin\AppData\Local\Temp\~unins2299.bat

        Filesize

        49B

        MD5

        9e0a2f5ab30517809b95a1ff1dd98c53

        SHA1

        5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

        SHA256

        97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

        SHA512

        e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

      • \ProgramData\iA17766JgEfP17766\iA17766JgEfP17766.exe

        Filesize

        368KB

        MD5

        b060cf9d8b791edc728b876caeaf4396

        SHA1

        9f55c1a2a8f61f3c5400b708ffed3956634bdb2f

        SHA256

        fb34733a62818e0b48d218686e56a2760ddd1dcfafa707a624e4fa94842afba1

        SHA512

        a368d2485fdf4395648103bf7422564359d404633d0d081acf65f98b23e88bf7a2710cf2036fc978100501a8314b55264f93ce396c75ade8ebdd22845135ae3e

      • \Users\Admin\AppData\Local\Temp\AV.EXE

        Filesize

        1.1MB

        MD5

        f284568010505119f479617a2e7dc189

        SHA1

        e23707625cce0035e3c1d2255af1ed326583a1ea

        SHA256

        26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

        SHA512

        ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

      • \Users\Admin\AppData\Local\Temp\AV2.EXE

        Filesize

        368KB

        MD5

        014578edb7da99e5ba8dd84f5d26dfd5

        SHA1

        df56d701165a480e925a153856cbc3ab799c5a04

        SHA256

        4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

        SHA512

        bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

      • \Users\Admin\AppData\Local\Temp\DB.EXE

        Filesize

        243KB

        MD5

        c6746a62feafcb4fca301f606f7101fa

        SHA1

        e09cd1382f9ceec027083b40e35f5f3d184e485f

        SHA256

        b5a255d0454853c8afc0b321e1d86dca22c3dbefb88e5d385d2d72f9bc0109e6

        SHA512

        ee5dfa08c86bf1524666f0851c729970dbf0b397db9595a2bae01516299344edb68123e976592a83e492f2982fafe8d350ba2d41368eb4ecf4e6fe12af8f5642

      • \Users\Admin\AppData\Local\Temp\SB.EXE

        Filesize

        224KB

        MD5

        9252e1be9776af202d6ad5c093637022

        SHA1

        6cc686d837cd633d9c2e8bc1eaba5fc364bf71d8

        SHA256

        ce822ff86e584f15b6abd14c61453bd3b481d4ec3fdeb961787fceb52acd8bd6

        SHA512

        98b1b3ce4d16d36f738478c6cf41e8f4a57d3a5ecfa8999d45592f79a469d8af8554bf4d5db34cb79cec71ce103f4fde1b41bd3cce30714f803e432e53da71ea

      • \Windows\SysWOW64\dplaysvrd.exe

        Filesize

        101KB

        MD5

        97a70bd32ac75266f542c361d96a0ee9

        SHA1

        79e3c0e1d20fa612988bf3e72227c18a5c8d995c

        SHA256

        afc3e8db090b625429ef6e4d839bd3c0a162c161b333025f83bb791ed3aec2f1

        SHA512

        fece1450fae2d32dae844c04e0892b557aae9d1ae39bcc051e3d40359697b0ce9cee572cbfe479f194c1bf397a0fd77bee9de063f29e6927fcc4e9d1454f481e

      • memory/1700-26-0x00000000004F0000-0x0000000000535000-memory.dmp

        Filesize

        276KB

      • memory/1700-20-0x00000000004F0000-0x0000000000535000-memory.dmp

        Filesize

        276KB

      • memory/1700-43-0x00000000004F0000-0x00000000004FA000-memory.dmp

        Filesize

        40KB

      • memory/1700-46-0x00000000004F0000-0x00000000004FA000-memory.dmp

        Filesize

        40KB

      • memory/2540-35-0x0000000000490000-0x0000000000523000-memory.dmp

        Filesize

        588KB

      • memory/2540-50-0x00000000001B0000-0x00000000001B1000-memory.dmp

        Filesize

        4KB

      • memory/2540-28-0x0000000000450000-0x0000000000481000-memory.dmp

        Filesize

        196KB

      • memory/2540-29-0x0000000000490000-0x0000000000523000-memory.dmp

        Filesize

        588KB

      • memory/2540-94-0x0000000000490000-0x0000000000523000-memory.dmp

        Filesize

        588KB

      • memory/2540-93-0x0000000000400000-0x0000000000445000-memory.dmp

        Filesize

        276KB

      • memory/2540-33-0x0000000000490000-0x0000000000523000-memory.dmp

        Filesize

        588KB

      • memory/2540-34-0x0000000000490000-0x0000000000523000-memory.dmp

        Filesize

        588KB

      • memory/2796-99-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/2796-48-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

      • memory/2888-78-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/2888-60-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/2888-75-0x00000000002FB000-0x00000000002FC000-memory.dmp

        Filesize

        4KB

      • memory/2888-74-0x00000000002F0000-0x0000000000354000-memory.dmp

        Filesize

        400KB

      • memory/2888-73-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/2888-59-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/3024-98-0x0000000000400000-0x00000000004C3000-memory.dmp

        Filesize

        780KB

      • memory/3024-109-0x0000000000400000-0x00000000004C3000-memory.dmp

        Filesize

        780KB

      • memory/3024-96-0x0000000000240000-0x0000000000243000-memory.dmp

        Filesize

        12KB

      • memory/3024-115-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/3044-76-0x0000000002030000-0x0000000002070000-memory.dmp

        Filesize

        256KB

      • memory/3044-61-0x0000000073EF0000-0x000000007449B000-memory.dmp

        Filesize

        5.7MB

      • memory/3044-104-0x0000000073EF0000-0x000000007449B000-memory.dmp

        Filesize

        5.7MB

      • memory/3044-62-0x0000000073EF0000-0x000000007449B000-memory.dmp

        Filesize

        5.7MB