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Analysis

  • max time kernel
    147s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 01:53

General

  • Target

    d0838f8688dd42d6441c63f1cc18f135996b4b37c240e26cec3b102aee20a52b.dll

  • Size

    622KB

  • MD5

    0410cb071b28551a84b14f8fd635131f

  • SHA1

    b4e952344d2ed614c6c88c1fdff8382a58e4e790

  • SHA256

    d0838f8688dd42d6441c63f1cc18f135996b4b37c240e26cec3b102aee20a52b

  • SHA512

    afbe2b9cc7d1176463d29d067c99832d2fa72337d5f11e0046299c045e4fe398cad677e481fb319652e16d5f378665f9c17acae65789671e858c0467285dd84d

  • SSDEEP

    12288:8h8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNRTiJJ3tSOK8:88F+Pzr/Hfp4MIYwZckMQmRPOK8

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 20 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d0838f8688dd42d6441c63f1cc18f135996b4b37c240e26cec3b102aee20a52b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3212
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d0838f8688dd42d6441c63f1cc18f135996b4b37c240e26cec3b102aee20a52b.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4356
        • C:\Windows\SysWOW64\rundll32mgrmgr.exe
          C:\Windows\SysWOW64\rundll32mgrmgr.exe
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:3752
          • C:\Program Files (x86)\Microsoft\WaterMark.exe
            "C:\Program Files (x86)\Microsoft\WaterMark.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of UnmapMainImage
            • Suspicious use of WriteProcessMemory
            PID:4964
            • C:\Windows\SysWOW64\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
                PID:4908
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 204
                  7⤵
                  • Program crash
                  PID:2836
              • C:\Program Files\Internet Explorer\iexplore.exe
                "C:\Program Files\Internet Explorer\iexplore.exe"
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1028
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1028 CREDAT:17410 /prefetch:2
                  7⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:1512
              • C:\Program Files\Internet Explorer\iexplore.exe
                "C:\Program Files\Internet Explorer\iexplore.exe"
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1316
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1316 CREDAT:17410 /prefetch:2
                  7⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:1464
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
      1⤵
        PID:1524

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        Filesize

        92KB

        MD5

        f6830df60354eff567ac1906e9db1ae6

        SHA1

        be512d8136aace9ec6d74cd96bd0f0d970a427e3

        SHA256

        5f0102011f16261efdbb31df52316e2307d4c9a3a3bc9b3a462f07191432d616

        SHA512

        80a33e363ccec283a47254a13b3ac3d7784c2e672c5843de8ddd01630722c72b2e25745331a6f8eee240e7407ced6ae56bd4dbf9ac92b2dde9406217a4c8f483

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

        Filesize

        92KB

        MD5

        f6830df60354eff567ac1906e9db1ae6

        SHA1

        be512d8136aace9ec6d74cd96bd0f0d970a427e3

        SHA256

        5f0102011f16261efdbb31df52316e2307d4c9a3a3bc9b3a462f07191432d616

        SHA512

        80a33e363ccec283a47254a13b3ac3d7784c2e672c5843de8ddd01630722c72b2e25745331a6f8eee240e7407ced6ae56bd4dbf9ac92b2dde9406217a4c8f483

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{87D62FDE-7629-11ED-B696-FA09CB65A760}.dat

        Filesize

        5KB

        MD5

        d91a2c9b9e3aad98e2578c7f237849e6

        SHA1

        847c4e3ed437489c2c5690c6d02652f28eef4f58

        SHA256

        24dd1ff37d3ab492e13cc463a5f150d788fe014af2026c9d747e98ead741c76b

        SHA512

        bfb9c5111fd61d01570db9d9ee0d199a59665f590f0b97c982eb6affbe11ecd016e3797ce4eb27afcaffbdc8c4bfa07c6f9558154d3657c51b5fbc1f4abfdef8

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{87DADA6B-7629-11ED-B696-FA09CB65A760}.dat

        Filesize

        3KB

        MD5

        d3d8da79420c745e8106a3edba5c2c6d

        SHA1

        911b26834502a414007aa6fa3f89c9d146e28c06

        SHA256

        05d3ae6a5261ff407819f44901ecadb09db7638a524501c571cd03c6dd069d99

        SHA512

        7001de14f6adea6001d6c9e4869d7948c6df773adb4906b376ed2849d182c430468be23ff870130aa6100faf2d992d3155dee5e3e01b6fb407d4d4ef9523d26d

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        186KB

        MD5

        f944fdb0929660b9d7626ee746f531bf

        SHA1

        a5e053e6f8c3b2af2f2ce89412bf6b95e1a0f1e5

        SHA256

        e24a5028e40fa02f1a0e9420df48efa2b67acc4d3a2a5c45d4f6653e9334d7a8

        SHA512

        917a8f0b84968f6e2d0d28a2afc39088344eaf946bbc006712413905acfe07b5fbabdb28ae15acdf5c38a2cf4cf7ca1766f34fd5dc3f339d8425a43825f05a53

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        186KB

        MD5

        f944fdb0929660b9d7626ee746f531bf

        SHA1

        a5e053e6f8c3b2af2f2ce89412bf6b95e1a0f1e5

        SHA256

        e24a5028e40fa02f1a0e9420df48efa2b67acc4d3a2a5c45d4f6653e9334d7a8

        SHA512

        917a8f0b84968f6e2d0d28a2afc39088344eaf946bbc006712413905acfe07b5fbabdb28ae15acdf5c38a2cf4cf7ca1766f34fd5dc3f339d8425a43825f05a53

      • C:\Windows\SysWOW64\rundll32mgrmgr.exe

        Filesize

        92KB

        MD5

        f6830df60354eff567ac1906e9db1ae6

        SHA1

        be512d8136aace9ec6d74cd96bd0f0d970a427e3

        SHA256

        5f0102011f16261efdbb31df52316e2307d4c9a3a3bc9b3a462f07191432d616

        SHA512

        80a33e363ccec283a47254a13b3ac3d7784c2e672c5843de8ddd01630722c72b2e25745331a6f8eee240e7407ced6ae56bd4dbf9ac92b2dde9406217a4c8f483

      • C:\Windows\SysWOW64\rundll32mgrmgr.exe

        Filesize

        92KB

        MD5

        f6830df60354eff567ac1906e9db1ae6

        SHA1

        be512d8136aace9ec6d74cd96bd0f0d970a427e3

        SHA256

        5f0102011f16261efdbb31df52316e2307d4c9a3a3bc9b3a462f07191432d616

        SHA512

        80a33e363ccec283a47254a13b3ac3d7784c2e672c5843de8ddd01630722c72b2e25745331a6f8eee240e7407ced6ae56bd4dbf9ac92b2dde9406217a4c8f483

      • memory/1880-142-0x0000000010000000-0x00000000100A1000-memory.dmp

        Filesize

        644KB

      • memory/3752-148-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/3752-158-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3752-147-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/3752-151-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3752-153-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/3752-144-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4356-154-0x0000000000400000-0x00000000004C7000-memory.dmp

        Filesize

        796KB

      • memory/4356-145-0x0000000000400000-0x00000000004C7000-memory.dmp

        Filesize

        796KB

      • memory/4356-155-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4356-150-0x0000000000400000-0x00000000004C7000-memory.dmp

        Filesize

        796KB

      • memory/4356-149-0x0000000000400000-0x00000000004C7000-memory.dmp

        Filesize

        796KB

      • memory/4964-168-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-169-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-167-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-166-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-172-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-173-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-174-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-175-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4964-176-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB