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Analysis

  • max time kernel
    32s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    25-04-2024 17:57

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 8 IoCs
  • Loads dropped DLL 14 IoCs
  • UPX packed file 11 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 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:1940
    • C:\Users\Admin\AppData\Local\Temp\AV.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV.EXE"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Users\Admin\AppData\Roaming\RtlDriver32.exe
        "C:\Users\Admin\AppData\Roaming\RtlDriver32.exe"
        3⤵
        • Executes dropped EXE
        PID:2864
    • 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:2988
      • C:\ProgramData\eI17766JcOoA17766\eI17766JcOoA17766.exe
        "C:\ProgramData\eI17766JcOoA17766\eI17766JcOoA17766.exe" "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
        3⤵
        • Executes dropped EXE
        PID:2892
    • 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:3004
      • C:\Windows\SysWOW64\proquota9.exe
        C:\Windows\SysWOW64\proquota9.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:376
        • C:\Windows\SysWOW64\ipconfig.exe
          "C:\Windows\system32\ipconfig.exe" /flushdns
          4⤵
          • Gathers network information
          PID:2364
      • C:\Windows\SysWOW64\cmd.exe
        /c C:\Users\Admin\AppData\Local\Temp\~unins7838.bat "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
        3⤵
          PID:2432
      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        "C:\Users\Admin\AppData\Local\Temp\EN.EXE"
        2⤵
        • Executes dropped EXE
        PID:2708
      • 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:2504

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      208B

      MD5

      fbe54553e71f27841d030ea3666d930b

      SHA1

      6396ef5441d4abc3f3df5e13b1c4592a6dd578de

      SHA256

      4c3f6a766cdc32fc3ceae50a060d88a6de32d040ccebd9eac646958f99b817b8

      SHA512

      657355aa4e0f8fb4946ef15747c42c583f6f900616059a5dce2959e6fba4aaa7688f0eed597a2c007ff9a2410516f943974d15291e237aca26ae0cead4633ae6

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

      Filesize

      368KB

      MD5

      014578edb7da99e5ba8dd84f5d26dfd5

      SHA1

      df56d701165a480e925a153856cbc3ab799c5a04

      SHA256

      4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

      SHA512

      bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

    • 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\~unins7838.bat

      Filesize

      49B

      MD5

      9e0a2f5ab30517809b95a1ff1dd98c53

      SHA1

      5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

      SHA256

      97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

      SHA512

      e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

    • \ProgramData\eI17766JcOoA17766\eI17766JcOoA17766.exe

      Filesize

      368KB

      MD5

      d3cc1b865bb90aeb865822f5c2a2e17b

      SHA1

      53be8780d39003b1df32da0042ffc2f80694355c

      SHA256

      2512bd555c02335f0ce546550e19d329efe49070096d00db6dc6f3b867d6a715

      SHA512

      6e54ba7f6484de29b1cc6d5b7a73437cdaa44a37eeccfed237f255dc4cf91e35b8ca61122d931aa442787a1118dd8b6154bcc11da5698eac7e40e2ede76555f6

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

      Filesize

      1.1MB

      MD5

      f284568010505119f479617a2e7dc189

      SHA1

      e23707625cce0035e3c1d2255af1ed326583a1ea

      SHA256

      26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

      SHA512

      ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

    • \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\proquota9.exe

      Filesize

      101KB

      MD5

      5e6fc7c27ba7894095a7c054638ef042

      SHA1

      c715cc87fdced1abfe9610199fb3ef52410db676

      SHA256

      a995b2f49dfbed94e76b5a56eea1dcb088562648c625bf51436d3dc26e97f811

      SHA512

      063ceceb31b25ff1f47138a834946ac31001c10e92170c767025d45521122a2a8954c17187221dff99818d285844a892e10d913bf1c776b7842609911907463b

    • memory/1508-176-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1508-75-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1508-182-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1508-218-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/1508-177-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/1508-49-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1508-181-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1508-68-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/1508-69-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/1508-76-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/1940-41-0x00000000004F0000-0x00000000004FA000-memory.dmp

      Filesize

      40KB

    • memory/1940-36-0x0000000002430000-0x0000000002475000-memory.dmp

      Filesize

      276KB

    • memory/1940-38-0x0000000002430000-0x0000000002475000-memory.dmp

      Filesize

      276KB

    • memory/1940-43-0x00000000004F0000-0x00000000004FA000-memory.dmp

      Filesize

      40KB

    • memory/2504-73-0x000000000022B000-0x000000000022C000-memory.dmp

      Filesize

      4KB

    • memory/2504-70-0x0000000000400000-0x0000000000464000-memory.dmp

      Filesize

      400KB

    • memory/2504-72-0x0000000000220000-0x0000000000284000-memory.dmp

      Filesize

      400KB

    • memory/2708-45-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2864-219-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2864-221-0x0000000074810000-0x0000000074DBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2864-222-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/2864-223-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/2864-220-0x0000000000AD0000-0x0000000000B10000-memory.dmp

      Filesize

      256KB

    • memory/2988-96-0x00000000003C0000-0x00000000003C3000-memory.dmp

      Filesize

      12KB

    • memory/2988-104-0x00000000003D0000-0x00000000003D1000-memory.dmp

      Filesize

      4KB

    • memory/2988-106-0x0000000000400000-0x00000000004C3000-memory.dmp

      Filesize

      780KB

    • memory/2988-183-0x0000000000400000-0x00000000004C3000-memory.dmp

      Filesize

      780KB

    • memory/3004-51-0x00000000001B0000-0x00000000001E1000-memory.dmp

      Filesize

      196KB

    • memory/3004-37-0x00000000004C0000-0x0000000000553000-memory.dmp

      Filesize

      588KB

    • memory/3004-39-0x0000000000400000-0x0000000000445000-memory.dmp

      Filesize

      276KB

    • memory/3004-46-0x00000000004C0000-0x0000000000553000-memory.dmp

      Filesize

      588KB

    • memory/3004-94-0x00000000004C0000-0x0000000000553000-memory.dmp

      Filesize

      588KB

    • memory/3004-50-0x00000000004C0000-0x0000000000553000-memory.dmp

      Filesize

      588KB

    • memory/3004-71-0x00000000004C0000-0x0000000000553000-memory.dmp

      Filesize

      588KB

    • memory/3004-74-0x0000000000200000-0x0000000000201000-memory.dmp

      Filesize

      4KB