Analysis

  • max time kernel
    141s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    13-05-2021 12:20

General

  • Target

    9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96f.exe

  • Size

    540KB

  • MD5

    23d1aa9b71a08e1fe727c5c66b214022

  • SHA1

    4ba3857925a3b24349120f7d0794f519ecd96d9a

  • SHA256

    9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96f

  • SHA512

    7213ef953dc7d1789eeef57cdbdd9d17ff7a96c8cbdf0015c3cae51829ad9051d2a317aade659c6259cc596704510b9779a92db8de09d79c829948c4af94d540

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 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96f.exe
    "C:\Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96fSrv.exe
      C:\Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96fSrv.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1972
      • 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:1968
        • 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:1740
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1740 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1568

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\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96fSrv.exe
    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96fSrv.exe
    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\KSO1DGM1.txt
    MD5

    49af5fea4973c605fdbc993419c8266c

    SHA1

    1c545efe2e2a52047f3aea9805f6eb9fb5d0edeb

    SHA256

    5875416b8e24090a7249346c5bde07d62c65a49c0080e37ed226a43e8eaef834

    SHA512

    89364cdc2c27fa26fc67aca88431e029263c40198fa930109a06b64b795a851e2e3537fc7cdf37e9a958042d84a4144e7a567bcaf8c3033aa04e00529b1ff0ef

  • \Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • \Users\Admin\AppData\Local\Temp\9dce97ef8b211295b3b34a16f101cd43265109acfb48b76f7f51446235f0a96fSrv.exe
    MD5

    da18881ccaefeaa4942af9291cb34826

    SHA1

    e4f33c21684bede05ccea60dd0767250ff2b3aba

    SHA256

    1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

    SHA512

    2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

  • memory/1568-72-0x0000000000000000-mapping.dmp
  • memory/1740-78-0x00000000044F0000-0x00000000044F1000-memory.dmp
    Filesize

    4KB

  • memory/1740-71-0x0000000000000000-mapping.dmp
  • memory/1904-59-0x0000000074FB1000-0x0000000074FB3000-memory.dmp
    Filesize

    8KB

  • memory/1904-75-0x00000000003B0000-0x00000000003DE000-memory.dmp
    Filesize

    184KB

  • memory/1968-66-0x0000000000000000-mapping.dmp
  • memory/1968-70-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1972-61-0x0000000000000000-mapping.dmp
  • memory/1972-73-0x0000000000230000-0x000000000023F000-memory.dmp
    Filesize

    60KB

  • memory/1972-74-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB