Analysis

  • max time kernel
    118s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 00:53

General

  • Target

    c7453fccf113e393515bb6c6af7f0b73.exe

  • Size

    98KB

  • MD5

    c7453fccf113e393515bb6c6af7f0b73

  • SHA1

    29bc0b27594dc06a1c34be2de5a94c9bba8a55be

  • SHA256

    e25d37f0e34e022913ed08284f08fc44538cf8ce9aacf24f492774ef7445b40e

  • SHA512

    9d2343325ec30bc700448bf0a8dcb4ea11cc7acbde9f31ee8bc0b047ff1816f61de2595a373f9367fdff425a01ff56d70e889389149e95874fbc18ecac1f9d62

  • SSDEEP

    3072:4BKwcvdwuxdWikJlCpUG+BEQ56XO3VuDm9TkeH:4BKwcvdnECmG6VuOYaOeH

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 4 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Modifies registry class 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe
    "C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe"
    1⤵
    • Loads dropped DLL
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
      C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:2952
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2532
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2532 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2796

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          67KB

          MD5

          753df6889fd7410a2e9fe333da83a429

          SHA1

          3c425f16e8267186061dd48ac1c77c122962456e

          SHA256

          b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

          SHA512

          9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          304B

          MD5

          f200e2eb8d59d5c59fba04d6659b2899

          SHA1

          20793a820d5dda38223bb25d9ae3d5b64cf6c6e6

          SHA256

          32cdafe39570e447679b3bf399aa284aaa352867c9aef365ee7719c4a80e4083

          SHA512

          2399ead92fa19b2089b5dbdf102d42f08800eea0a7cd0453bc25f02cee50f8e5f09af3ddcaa29c2aee32124e561ed8894dc32e1b24f75689f9815a34fcdcefce

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          304B

          MD5

          5d1c11fb2150e61980c813678efb3a3c

          SHA1

          6d1da4224ae1319a658f3d4aa67e356bfa50fc05

          SHA256

          3087a728146b04f12b6f80b904a2bd91b3be90849b78e85d7756f5b666d6fd78

          SHA512

          d72583427f6151c1c85506abc0dbc94ec44e4816d933c22e56b3af2159bf7c5fcf0f03d3f59fd2fb491453166bedb9fb261b1e2c3dbd817f34c021f5e133c142

        • C:\Users\Admin\AppData\Local\Temp\Tar29D6.tmp

          Filesize

          175KB

          MD5

          dd73cead4b93366cf3465c8cd32e2796

          SHA1

          74546226dfe9ceb8184651e920d1dbfb432b314e

          SHA256

          a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

          SHA512

          ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

        • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe

          Filesize

          52KB

          MD5

          17efb7e40d4cadaf3a4369435a8772ec

          SHA1

          eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

          SHA256

          f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

          SHA512

          522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

        • memory/1656-10-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1656-21-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1656-509-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/2240-9-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/2240-398-0x0000000001000000-0x000000000101C000-memory.dmp

          Filesize

          112KB

        • memory/2240-0-0x0000000001000000-0x000000000101C000-memory.dmp

          Filesize

          112KB

        • memory/2240-12-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/2952-24-0x0000000000230000-0x0000000000232000-memory.dmp

          Filesize

          8KB

        • memory/2952-30-0x0000000076F4F000-0x0000000076F50000-memory.dmp

          Filesize

          4KB

        • memory/2952-26-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/2952-27-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

        • memory/2952-28-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/2952-510-0x0000000076F4F000-0x0000000076F50000-memory.dmp

          Filesize

          4KB