Analysis

  • max time kernel
    141s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    15-05-2021 14:34

General

  • Target

    bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3.exe

  • Size

    71KB

  • MD5

    f11ea176f38efd18006e8c8b12e9ae57

  • SHA1

    8b0b7ac1a569e9ae063eca5a21dba06ca8caee6f

  • SHA256

    bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3

  • SHA512

    9facdf0abb96a51851e4fd10c2aa0a7e8f1500b82f9052d9c7222df604e50c861542f937fa60ece9316c003b56925245ac4ed61346ed35e4ec7da4c8084894e9

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3.exe
    "C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3Srv.exe
      C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3Srv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1952
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1952 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1708

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3Srv.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3Srv.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\HTRA738A.txt

    MD5

    98c654d193b643c801e00f6f22dc84b4

    SHA1

    0ae369ccbb77ec821251aa7f0a9c15ec23dda605

    SHA256

    bce539901a92182b3ebd6b67e5639d04cdfdcbedc9286469eb1658dae2b3a2be

    SHA512

    55c63f36a2ca0fb0413a83a5e2c067724fd7d75c19b6f42e45ca5a1e97a331b716bd765cc492fa7f8f190cd4b69ecd770eff59c67bf73df6bf65757a35de8a9b

  • \Program Files (x86)\Microsoft\DesktopLayer.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • \Users\Admin\AppData\Local\Temp\bb7db15dd1e104cb3454a80a832644fe63d51d22db09f9e627acfe987c884ed3Srv.exe

    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • memory/1564-61-0x0000000000000000-mapping.dmp

  • memory/1564-63-0x0000000076281000-0x0000000076283000-memory.dmp

    Filesize

    8KB

  • memory/1564-74-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1564-73-0x00000000001C0000-0x00000000001CF000-memory.dmp

    Filesize

    60KB

  • memory/1708-72-0x0000000000000000-mapping.dmp

  • memory/1952-71-0x0000000000000000-mapping.dmp

  • memory/1952-77-0x0000000003E00000-0x0000000003E01000-memory.dmp

    Filesize

    4KB

  • memory/1996-66-0x0000000000000000-mapping.dmp

  • memory/1996-70-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB