Analysis

  • max time kernel
    108s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-05-2021 03:05

General

  • Target

    0f2cfa0e18f51c8ed9be8a75cb25d77f80107cf17eba3c146f464ec7839d39de.dll

  • Size

    400KB

  • MD5

    ab56038b74c539c472f6402a9443cb21

  • SHA1

    6d657392f7a98a45bf40d747ede60dbdd0e2db8a

  • SHA256

    0f2cfa0e18f51c8ed9be8a75cb25d77f80107cf17eba3c146f464ec7839d39de

  • SHA512

    8a1d7bc753230e7e82056cd9690068771699e5b43d7b77b781d47ea30e1146bae25fc1460a14a2fdffe946174a2d56bccb3ed064901777b1994c9978f833ab1a

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 System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 25 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\0f2cfa0e18f51c8ed9be8a75cb25d77f80107cf17eba3c146f464ec7839d39de.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0f2cfa0e18f51c8ed9be8a75cb25d77f80107cf17eba3c146f464ec7839d39de.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1624
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:840
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:840 CREDAT:275457 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 228
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Windows\SysWOW64\rundll32Srv.exe

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Windows\SysWOW64\rundll32Srv.exe

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • \Windows\SysWOW64\rundll32Srv.exe

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/840-73-0x0000000000000000-mapping.dmp

  • memory/840-80-0x0000000004600000-0x0000000004601000-memory.dmp

    Filesize

    4KB

  • memory/1160-78-0x0000000000000000-mapping.dmp

  • memory/1352-62-0x0000000000000000-mapping.dmp

  • memory/1352-75-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1352-74-0x0000000000230000-0x000000000023F000-memory.dmp

    Filesize

    60KB

  • memory/1444-68-0x0000000000000000-mapping.dmp

  • memory/1444-79-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/1624-67-0x0000000000000000-mapping.dmp

  • memory/1624-72-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/1952-59-0x0000000000000000-mapping.dmp

  • memory/1952-60-0x0000000075D11000-0x0000000075D13000-memory.dmp

    Filesize

    8KB