Analysis

  • max time kernel
    27s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:09

General

  • Target

    e293a993161b62cee61f058c4b18049ea47c99df748a0ede423a1c5dbb247ee1.exe

  • Size

    601KB

  • MD5

    48174756a04cc2359cb98bde09b66d25

  • SHA1

    0f105d991ab9476d97b59351765204469f184d90

  • SHA256

    e293a993161b62cee61f058c4b18049ea47c99df748a0ede423a1c5dbb247ee1

  • SHA512

    8f7b4aeee9d0fc9b4bdab6ae82b782550f3d2abcde1aa1d9531e0ef3d9961d25a2ece32184ca016b955d8e67dd1620b730d1af66f4b72731ba577b82434e62b8

  • SSDEEP

    12288:ZIny5DYTDxOEhYJNbyquIGUy/AdrdCZDtRrdTHfzh2UekUeo:VUTDd4WquIGUyYQTpnekPo

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e293a993161b62cee61f058c4b18049ea47c99df748a0ede423a1c5dbb247ee1.exe
    "C:\Users\Admin\AppData\Local\Temp\e293a993161b62cee61f058c4b18049ea47c99df748a0ede423a1c5dbb247ee1.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1356
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1212
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1316
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:648
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:624
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1836
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:472
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1992
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1172
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1272
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1820
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1520

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            12f1cd9460ab8a72a9363a425f78775d

            SHA1

            822a2bf01bf07bd637468d1d158bd15c21e9502f

            SHA256

            19eadda2e18780255798604acd5147c6d71f41ae51cdf95ed7fb2cd806c6375e

            SHA512

            7d8da2ba6e43bf0c088820cca975603319bcec664086a5e56aa76a03bf910aec23b005d18cae9f13438a957f20f31330d9cebf955e0916024c76a019a0955124

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            5b22b1f45ef754bd1e2134fb6c6d9a10

            SHA1

            1c2829327067e425fdb1c827a35520fc157471e8

            SHA256

            04b7c658b3c7feb4656e290415bbc18fd43313ee16637461c2fc671e02750339

            SHA512

            3977c5964d63760bb8c5ee7d541c416b35ee6ad7304f8992f4d0ea340414dd5d9b7d1a53abc05ecdd797e6c72a5bb3faa2c7bc136f6427ae40b15c64bd65c629

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            652e5d57a3c7e7d71d25a871e2a65262

            SHA1

            4dc743c10b2a7e585636061069d622673c1e476e

            SHA256

            c5eef8ac84c9f05ef0dd0b61657656d5e5519c288fccdf42443292487a13db48

            SHA512

            c1e078c47189c8275abc1c34e84eb7af6f6ea46ce5c4b4ff3cb808bdfcd081cba52bbb7d28f120c4e4a2aa3ef78a082b5fcea23b5cccd62d95b9aac14d3bc522

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            914f7bcafb58737674710e6564b89f93

            SHA1

            d4c4a701744445450e56632a95db22797b209dae

            SHA256

            74a662a99eb77b93e790563ff078942fa09ce9df091388bebdde7684862d9358

            SHA512

            772c5add38ed980497ef977eb47ef90150059ba7b8a729c3ec82a9e669a2dc3e148a523d71346d66178f77dedbf7198f58ad46c176cdd157ef98182520ab5118

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            914f7bcafb58737674710e6564b89f93

            SHA1

            d4c4a701744445450e56632a95db22797b209dae

            SHA256

            74a662a99eb77b93e790563ff078942fa09ce9df091388bebdde7684862d9358

            SHA512

            772c5add38ed980497ef977eb47ef90150059ba7b8a729c3ec82a9e669a2dc3e148a523d71346d66178f77dedbf7198f58ad46c176cdd157ef98182520ab5118

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            83110603b4a767ad0ed4286341a5afac

            SHA1

            6f0eae3b9511356bae1723b4f0ea597ea85e2ca4

            SHA256

            2c349ca3f36af2d6d80182ae40c4b23102a9055c24b61e6de6acef67ac6cab34

            SHA512

            ca8e39dc869199c948608bdd91a48cc2b0313fe5790ff240a17b17a6a28926656e501d10d649bca1c16ed998c9dba7facc361e4f5e65ca7570fb2949a4319f8c

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            83110603b4a767ad0ed4286341a5afac

            SHA1

            6f0eae3b9511356bae1723b4f0ea597ea85e2ca4

            SHA256

            2c349ca3f36af2d6d80182ae40c4b23102a9055c24b61e6de6acef67ac6cab34

            SHA512

            ca8e39dc869199c948608bdd91a48cc2b0313fe5790ff240a17b17a6a28926656e501d10d649bca1c16ed998c9dba7facc361e4f5e65ca7570fb2949a4319f8c

          • \Users\Admin\AppData\Local\Temp\nsj402F.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj402F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj402F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj402F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj402F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            12f1cd9460ab8a72a9363a425f78775d

            SHA1

            822a2bf01bf07bd637468d1d158bd15c21e9502f

            SHA256

            19eadda2e18780255798604acd5147c6d71f41ae51cdf95ed7fb2cd806c6375e

            SHA512

            7d8da2ba6e43bf0c088820cca975603319bcec664086a5e56aa76a03bf910aec23b005d18cae9f13438a957f20f31330d9cebf955e0916024c76a019a0955124

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            12f1cd9460ab8a72a9363a425f78775d

            SHA1

            822a2bf01bf07bd637468d1d158bd15c21e9502f

            SHA256

            19eadda2e18780255798604acd5147c6d71f41ae51cdf95ed7fb2cd806c6375e

            SHA512

            7d8da2ba6e43bf0c088820cca975603319bcec664086a5e56aa76a03bf910aec23b005d18cae9f13438a957f20f31330d9cebf955e0916024c76a019a0955124

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            12f1cd9460ab8a72a9363a425f78775d

            SHA1

            822a2bf01bf07bd637468d1d158bd15c21e9502f

            SHA256

            19eadda2e18780255798604acd5147c6d71f41ae51cdf95ed7fb2cd806c6375e

            SHA512

            7d8da2ba6e43bf0c088820cca975603319bcec664086a5e56aa76a03bf910aec23b005d18cae9f13438a957f20f31330d9cebf955e0916024c76a019a0955124

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            5b22b1f45ef754bd1e2134fb6c6d9a10

            SHA1

            1c2829327067e425fdb1c827a35520fc157471e8

            SHA256

            04b7c658b3c7feb4656e290415bbc18fd43313ee16637461c2fc671e02750339

            SHA512

            3977c5964d63760bb8c5ee7d541c416b35ee6ad7304f8992f4d0ea340414dd5d9b7d1a53abc05ecdd797e6c72a5bb3faa2c7bc136f6427ae40b15c64bd65c629

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            5b22b1f45ef754bd1e2134fb6c6d9a10

            SHA1

            1c2829327067e425fdb1c827a35520fc157471e8

            SHA256

            04b7c658b3c7feb4656e290415bbc18fd43313ee16637461c2fc671e02750339

            SHA512

            3977c5964d63760bb8c5ee7d541c416b35ee6ad7304f8992f4d0ea340414dd5d9b7d1a53abc05ecdd797e6c72a5bb3faa2c7bc136f6427ae40b15c64bd65c629

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            652e5d57a3c7e7d71d25a871e2a65262

            SHA1

            4dc743c10b2a7e585636061069d622673c1e476e

            SHA256

            c5eef8ac84c9f05ef0dd0b61657656d5e5519c288fccdf42443292487a13db48

            SHA512

            c1e078c47189c8275abc1c34e84eb7af6f6ea46ce5c4b4ff3cb808bdfcd081cba52bbb7d28f120c4e4a2aa3ef78a082b5fcea23b5cccd62d95b9aac14d3bc522

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            914f7bcafb58737674710e6564b89f93

            SHA1

            d4c4a701744445450e56632a95db22797b209dae

            SHA256

            74a662a99eb77b93e790563ff078942fa09ce9df091388bebdde7684862d9358

            SHA512

            772c5add38ed980497ef977eb47ef90150059ba7b8a729c3ec82a9e669a2dc3e148a523d71346d66178f77dedbf7198f58ad46c176cdd157ef98182520ab5118

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            83110603b4a767ad0ed4286341a5afac

            SHA1

            6f0eae3b9511356bae1723b4f0ea597ea85e2ca4

            SHA256

            2c349ca3f36af2d6d80182ae40c4b23102a9055c24b61e6de6acef67ac6cab34

            SHA512

            ca8e39dc869199c948608bdd91a48cc2b0313fe5790ff240a17b17a6a28926656e501d10d649bca1c16ed998c9dba7facc361e4f5e65ca7570fb2949a4319f8c

          • memory/472-80-0x0000000000000000-mapping.dmp
          • memory/548-54-0x0000000076171000-0x0000000076173000-memory.dmp
            Filesize

            8KB

          • memory/548-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/548-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/624-70-0x0000000000000000-mapping.dmp
          • memory/648-64-0x0000000000000000-mapping.dmp
          • memory/1172-86-0x0000000000000000-mapping.dmp
          • memory/1212-61-0x0000000000000000-mapping.dmp
          • memory/1272-87-0x0000000000000000-mapping.dmp
          • memory/1316-62-0x0000000000000000-mapping.dmp
          • memory/1356-58-0x0000000000000000-mapping.dmp
          • memory/1512-57-0x0000000000000000-mapping.dmp
          • memory/1836-76-0x0000000000000000-mapping.dmp
          • memory/1992-81-0x0000000000000000-mapping.dmp