Analysis

  • max time kernel
    64s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    eea3d39483cb6cae7f987ae19569369284b25de3be71593a5ceb54f8c97981dc.exe

  • Size

    447KB

  • MD5

    496a8a01a2e597ae434a6bb359854f93

  • SHA1

    7eca28ad020d7d04cba182bc125511515153f440

  • SHA256

    eea3d39483cb6cae7f987ae19569369284b25de3be71593a5ceb54f8c97981dc

  • SHA512

    297264a433ce37e4d0eb8f2243d6d0d7d8d9089507ba4976b5d7a3819e2957b51380b1c1194b5e904226a20da7d92bb55e1cca52b72c16561a266aeb19e8dda6

  • SSDEEP

    12288:J2kKkA2JaPALhrKTDZGuszNAoX8+QOm1yE:JN5jhGTDZGuszNAVDOCt

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\eea3d39483cb6cae7f987ae19569369284b25de3be71593a5ceb54f8c97981dc.exe
    "C:\Users\Admin\AppData\Local\Temp\eea3d39483cb6cae7f987ae19569369284b25de3be71593a5ceb54f8c97981dc.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:2028
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:560
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1080
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:568
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:268
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1552
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:812
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1224
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:836
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:960
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:896
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:384
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1312

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            589c8a18a3e8dadbc53d0089a185aa2e

            SHA1

            626f2be349f0d6ca66f713bad0dbdb249d3327fc

            SHA256

            6a668b0191f7d5d7fd15bbe80609c4d400408ed54d963265bcef7a9db023506e

            SHA512

            c80a91c2e522310fd89d6862d6ed8a7a7e74ed8c04afe1e9ba5ca8e7c8396d39d1e9fa192acac5fba3b3363909890e55b7efcb5dc141b63d8a982ec35eb9c6c4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7db87fa8cd3ea449452f5151fc51e496

            SHA1

            641e80913d2723a5c2acb994dc8019560a86d990

            SHA256

            d36ce43670fe6a72d5d6b07b515e3bf2b95db4d531b7b12f3974989fee411e0c

            SHA512

            001eb3fa74799997a32065734abd6502a7ed5228ff9eb2101d67702c6fe62effa9714dee36fe7b780811641e08818ee4ecea311c5ea3d2745f846d42b6b8ff92

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6f1705d2229488aa99b6cd9c9be49ce5

            SHA1

            0dc3a7a208891cee75ef23f1dd210738904972ee

            SHA256

            71909b9ea303bac75e6ebc0f800f618b80660bc3a4b2403f6649295a6ba3f499

            SHA512

            314e1b6430e7a5d119c3dfd1688a8f62a260f8828c250704c7dcfe76422c834c79a7a05ac733e091b34f5c7fc17ff1106d14f0a3500d7264e8cdec8df8e705ce

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            19818c5fa70cabe4ae2f18f08c3052ba

            SHA1

            f3815307597e36015ed57554cb6534b958f2d472

            SHA256

            0a5aed381ef77091851f5cd6edbf72fc9968c0be89f77d064dd07607a0e68044

            SHA512

            58c670a27a539232b5cb5294efc4988615264ec6a79688b5350eef872fec9f078e1bfffa2f081507a274b9f335a66ce6bfb81b25b9c3695576ca07016ae68b53

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            19818c5fa70cabe4ae2f18f08c3052ba

            SHA1

            f3815307597e36015ed57554cb6534b958f2d472

            SHA256

            0a5aed381ef77091851f5cd6edbf72fc9968c0be89f77d064dd07607a0e68044

            SHA512

            58c670a27a539232b5cb5294efc4988615264ec6a79688b5350eef872fec9f078e1bfffa2f081507a274b9f335a66ce6bfb81b25b9c3695576ca07016ae68b53

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f738ac70c0964bbbc2ac785166dc8e53

            SHA1

            b558fda61030ee539c6d793b6257aaf38d1163a7

            SHA256

            a42d789c65fefa41e78f8d6cc68bd8c2e3ebe6284d04dcc16a6b0f1d13dcc967

            SHA512

            db1dad3e65febc66a301015fba3275243ece2bc42700c30125334a878119e025adf56fec8d2eec9baf5e2950e59fba8623c16d13796a9cc54114254ba93d93b2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f738ac70c0964bbbc2ac785166dc8e53

            SHA1

            b558fda61030ee539c6d793b6257aaf38d1163a7

            SHA256

            a42d789c65fefa41e78f8d6cc68bd8c2e3ebe6284d04dcc16a6b0f1d13dcc967

            SHA512

            db1dad3e65febc66a301015fba3275243ece2bc42700c30125334a878119e025adf56fec8d2eec9baf5e2950e59fba8623c16d13796a9cc54114254ba93d93b2

          • \Users\Admin\AppData\Local\Temp\nsoAAA4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoAAA4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAAA4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAAA4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAAA4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            589c8a18a3e8dadbc53d0089a185aa2e

            SHA1

            626f2be349f0d6ca66f713bad0dbdb249d3327fc

            SHA256

            6a668b0191f7d5d7fd15bbe80609c4d400408ed54d963265bcef7a9db023506e

            SHA512

            c80a91c2e522310fd89d6862d6ed8a7a7e74ed8c04afe1e9ba5ca8e7c8396d39d1e9fa192acac5fba3b3363909890e55b7efcb5dc141b63d8a982ec35eb9c6c4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            589c8a18a3e8dadbc53d0089a185aa2e

            SHA1

            626f2be349f0d6ca66f713bad0dbdb249d3327fc

            SHA256

            6a668b0191f7d5d7fd15bbe80609c4d400408ed54d963265bcef7a9db023506e

            SHA512

            c80a91c2e522310fd89d6862d6ed8a7a7e74ed8c04afe1e9ba5ca8e7c8396d39d1e9fa192acac5fba3b3363909890e55b7efcb5dc141b63d8a982ec35eb9c6c4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            589c8a18a3e8dadbc53d0089a185aa2e

            SHA1

            626f2be349f0d6ca66f713bad0dbdb249d3327fc

            SHA256

            6a668b0191f7d5d7fd15bbe80609c4d400408ed54d963265bcef7a9db023506e

            SHA512

            c80a91c2e522310fd89d6862d6ed8a7a7e74ed8c04afe1e9ba5ca8e7c8396d39d1e9fa192acac5fba3b3363909890e55b7efcb5dc141b63d8a982ec35eb9c6c4

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7db87fa8cd3ea449452f5151fc51e496

            SHA1

            641e80913d2723a5c2acb994dc8019560a86d990

            SHA256

            d36ce43670fe6a72d5d6b07b515e3bf2b95db4d531b7b12f3974989fee411e0c

            SHA512

            001eb3fa74799997a32065734abd6502a7ed5228ff9eb2101d67702c6fe62effa9714dee36fe7b780811641e08818ee4ecea311c5ea3d2745f846d42b6b8ff92

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            7db87fa8cd3ea449452f5151fc51e496

            SHA1

            641e80913d2723a5c2acb994dc8019560a86d990

            SHA256

            d36ce43670fe6a72d5d6b07b515e3bf2b95db4d531b7b12f3974989fee411e0c

            SHA512

            001eb3fa74799997a32065734abd6502a7ed5228ff9eb2101d67702c6fe62effa9714dee36fe7b780811641e08818ee4ecea311c5ea3d2745f846d42b6b8ff92

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6f1705d2229488aa99b6cd9c9be49ce5

            SHA1

            0dc3a7a208891cee75ef23f1dd210738904972ee

            SHA256

            71909b9ea303bac75e6ebc0f800f618b80660bc3a4b2403f6649295a6ba3f499

            SHA512

            314e1b6430e7a5d119c3dfd1688a8f62a260f8828c250704c7dcfe76422c834c79a7a05ac733e091b34f5c7fc17ff1106d14f0a3500d7264e8cdec8df8e705ce

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            19818c5fa70cabe4ae2f18f08c3052ba

            SHA1

            f3815307597e36015ed57554cb6534b958f2d472

            SHA256

            0a5aed381ef77091851f5cd6edbf72fc9968c0be89f77d064dd07607a0e68044

            SHA512

            58c670a27a539232b5cb5294efc4988615264ec6a79688b5350eef872fec9f078e1bfffa2f081507a274b9f335a66ce6bfb81b25b9c3695576ca07016ae68b53

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            f738ac70c0964bbbc2ac785166dc8e53

            SHA1

            b558fda61030ee539c6d793b6257aaf38d1163a7

            SHA256

            a42d789c65fefa41e78f8d6cc68bd8c2e3ebe6284d04dcc16a6b0f1d13dcc967

            SHA512

            db1dad3e65febc66a301015fba3275243ece2bc42700c30125334a878119e025adf56fec8d2eec9baf5e2950e59fba8623c16d13796a9cc54114254ba93d93b2

          • memory/268-63-0x0000000000000000-mapping.dmp

          • memory/560-58-0x0000000000000000-mapping.dmp

          • memory/568-61-0x0000000000000000-mapping.dmp

          • memory/812-75-0x0000000000000000-mapping.dmp

          • memory/836-80-0x0000000000000000-mapping.dmp

          • memory/896-86-0x0000000000000000-mapping.dmp

          • memory/960-85-0x0000000000000000-mapping.dmp

          • memory/1080-60-0x0000000000000000-mapping.dmp

          • memory/1224-79-0x0000000000000000-mapping.dmp

          • memory/1552-69-0x0000000000000000-mapping.dmp

          • memory/2000-57-0x0000000000000000-mapping.dmp

          • memory/2028-54-0x0000000075531000-0x0000000075533000-memory.dmp

            Filesize

            8KB