Analysis

  • max time kernel
    124s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 01:03

General

  • Target

    0119d358d5a716dd829aab8368ad09f4aa4d5ef4cd7a54040f02ba104913508a.exe

  • Size

    632KB

  • MD5

    2b62663842db9f701ad4f41905f85527

  • SHA1

    81d5d67c4df0a0bf9f50032e713b4291d3463b4a

  • SHA256

    0119d358d5a716dd829aab8368ad09f4aa4d5ef4cd7a54040f02ba104913508a

  • SHA512

    0fec57f65127df7d6fc4d968dcffbd4f51dd28c01eeef44d8b83abba8471071e1069fb9edc4efb82246ca48ba8864d9c86473e74015a778f088b29420cd21daf

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0119d358d5a716dd829aab8368ad09f4aa4d5ef4cd7a54040f02ba104913508a.exe
    "C:\Users\Admin\AppData\Local\Temp\0119d358d5a716dd829aab8368ad09f4aa4d5ef4cd7a54040f02ba104913508a.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4464
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaViewV1\MediaViewV1alpha611\ie\MediaViewV1alpha611.dll" /s
      2⤵
      • Loads dropped DLL
      • Modifies registry class
      PID:5072
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
        PID:5064
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4968
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
        1⤵
          PID:3292

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Browser Extensions

        1
        T1176

        Defense Evasion

        Modify Registry

        2
        T1112

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        1
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\MediaViewV1\MediaViewV1alpha611\ie\MediaViewV1alpha611.dll
          Filesize

          85KB

          MD5

          5c2f4ca5a951ceb6b91157f49f3a0781

          SHA1

          2e32751f33ea6fb61f436bbff378138f9fd59a51

          SHA256

          c79cfd07b7b88ce631372a4841ee591f4a3070ec09a97657cb2149d9d9c21efa

          SHA512

          62f8eb167801862d50468920d1deea82c27178fe266eaf0647ef83aa8dbfce596c496f7dfd71c8a1b85ab0b22196b0a72ea478d68a6e34ee1dfeb96987dcd0ce

        • C:\Program Files (x86)\MediaViewV1\MediaViewV1alpha611\ie\MediaViewV1alpha611.dll
          Filesize

          85KB

          MD5

          5c2f4ca5a951ceb6b91157f49f3a0781

          SHA1

          2e32751f33ea6fb61f436bbff378138f9fd59a51

          SHA256

          c79cfd07b7b88ce631372a4841ee591f4a3070ec09a97657cb2149d9d9c21efa

          SHA512

          62f8eb167801862d50468920d1deea82c27178fe266eaf0647ef83aa8dbfce596c496f7dfd71c8a1b85ab0b22196b0a72ea478d68a6e34ee1dfeb96987dcd0ce

        • C:\Users\Admin\AppData\Local\Temp\nskBC31.tmp\aminsis.dll
          Filesize

          559KB

          MD5

          75fccc3ffe4fdeaa26b9098975ba3772

          SHA1

          9f04339adecad084b9696f757a8c12d3fd036be0

          SHA256

          71fd0603ba5bb405a0d134595c0d7f7d2ffd83bf1d083d4ccb6e7382f5bef81e

          SHA512

          bd3c65aa43b88dd3e1449180944d7dd6df3734fb1097117be4285b8b4bd72e7decf5e3e18e8a49b51b71b47b9ae9e444128dfeb1167a4b04a08dc220d314e3bd

        • memory/5064-134-0x0000000000000000-mapping.dmp
        • memory/5072-131-0x0000000000000000-mapping.dmp