Analysis

  • max time kernel
    36s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    1d592eaca3471d1e77256791d044d61b85b5788347f3ad008bfc19f34833d011.exe

  • Size

    601KB

  • MD5

    7c9f015d6b8d378efc52087f5354efd6

  • SHA1

    67d9eacecd915302c19398d4049959fc9a9e1b1a

  • SHA256

    1d592eaca3471d1e77256791d044d61b85b5788347f3ad008bfc19f34833d011

  • SHA512

    4ac64fbf113ebc8fa1cd6acb968c662e3fe419e1080c1f881497ba484c6e6cd2a250bfa370e84dcb098c2ec635e0c57e4a783413b252464a80dc520ecb25f627

  • SSDEEP

    12288:zIny5DYT7CJ+1ga+MUk1pdUfIywgmAq0GaTo0CtR4xLfu:bUT7C3a+rkfOwGDE07zu

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\1d592eaca3471d1e77256791d044d61b85b5788347f3ad008bfc19f34833d011.exe
    "C:\Users\Admin\AppData\Local\Temp\1d592eaca3471d1e77256791d044d61b85b5788347f3ad008bfc19f34833d011.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:2036
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1532
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1456
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1720
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1368
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1524
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1976
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1668
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1064
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1748
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1856

          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

            c3113e8db1626f66dbcfb9ba699d9c33

            SHA1

            cba4e4cda1bcfa62b7d3810b111b65f3a29f1d0d

            SHA256

            323f858c25b5abca0f5278982db8ba77d35847ac0d71eeadd1f1b4c737c9db0c

            SHA512

            c75b7a8b91db75a97f17a144a52d0159788327542f0f91fa549206f75ea7162bb3ac303ce065d205d81a34c14719d0b702240443109c1b816e8fc264478e598c

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

            241KB

            MD5

            db2ab22f5fa14adb191872a81cb261e2

            SHA1

            b4d1e3901668fb0a54de8b27cdac68b82a7fb023

            SHA256

            9c6b1bae80a61cfc073c6bede1c6af2d37eef9d15bfc4118094068b0a61aed3e

            SHA512

            7dd58ccb344a9182d12e038e3d63659374de7da2d73c91cf37efb1727874265a99fb6ef3130d2f22d11cbe89ee288972af1ead7e6018be8792857e3cec421db2

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

            108KB

            MD5

            ae7c8f764e6db22d580ee98ea989f01e

            SHA1

            d18ae0122a21854ea244a57f3e0df8d013e10167

            SHA256

            ef9613ddfffa672455e06ef0ca91532f90e2e816687d49caa15295edf50d9fb9

            SHA512

            63dacdafd2f37014e784c1c01f7893d86c79bb61a0fa2c43ffe944ee05a5e88534d24d7087f63d281e9c71b3723c80cefe4685777b8747de774e840f4106163a

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

            176KB

            MD5

            1cd8142be4ec672a92d31f96fca38d5a

            SHA1

            1575d3ad041c53a412eb28a1baec643c5b8ba1ab

            SHA256

            8e9f0d7e6f322e4657e81ce1a79edf006264ac262cc33568a0408e9dfb12660d

            SHA512

            f95e2e456c5d667b4a63a6b3fc925d2ceac460f4e6e311316227d6b234cf862c9232c6f9c8c44a2c2744da609d6e2d90410dbd355112bbe215e921541b416a5f

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

            176KB

            MD5

            1cd8142be4ec672a92d31f96fca38d5a

            SHA1

            1575d3ad041c53a412eb28a1baec643c5b8ba1ab

            SHA256

            8e9f0d7e6f322e4657e81ce1a79edf006264ac262cc33568a0408e9dfb12660d

            SHA512

            f95e2e456c5d667b4a63a6b3fc925d2ceac460f4e6e311316227d6b234cf862c9232c6f9c8c44a2c2744da609d6e2d90410dbd355112bbe215e921541b416a5f

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

            158KB

            MD5

            168bfdb42d6971c14021768637dbcd12

            SHA1

            26b7bb714beb48023d4df5606595a358249bfcb3

            SHA256

            9a010488b63ed866fd5a77279066f857b3ff7b1f34ef5f2b1eb9b228ec8e78c5

            SHA512

            1fe06496564f1e24923a8f2f1b3f364dbfee0e1b141e4157993dd4a929e38f098a26fe7bdf66197b9be39501c013c566fcdb630e0274fded15f4765bf76e9b9a

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

            158KB

            MD5

            168bfdb42d6971c14021768637dbcd12

            SHA1

            26b7bb714beb48023d4df5606595a358249bfcb3

            SHA256

            9a010488b63ed866fd5a77279066f857b3ff7b1f34ef5f2b1eb9b228ec8e78c5

            SHA512

            1fe06496564f1e24923a8f2f1b3f364dbfee0e1b141e4157993dd4a929e38f098a26fe7bdf66197b9be39501c013c566fcdb630e0274fded15f4765bf76e9b9a

          • \Users\Admin\AppData\Local\Temp\nsy4C20.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy4C20.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy4C20.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy4C20.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy4C20.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c3113e8db1626f66dbcfb9ba699d9c33

            SHA1

            cba4e4cda1bcfa62b7d3810b111b65f3a29f1d0d

            SHA256

            323f858c25b5abca0f5278982db8ba77d35847ac0d71eeadd1f1b4c737c9db0c

            SHA512

            c75b7a8b91db75a97f17a144a52d0159788327542f0f91fa549206f75ea7162bb3ac303ce065d205d81a34c14719d0b702240443109c1b816e8fc264478e598c

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c3113e8db1626f66dbcfb9ba699d9c33

            SHA1

            cba4e4cda1bcfa62b7d3810b111b65f3a29f1d0d

            SHA256

            323f858c25b5abca0f5278982db8ba77d35847ac0d71eeadd1f1b4c737c9db0c

            SHA512

            c75b7a8b91db75a97f17a144a52d0159788327542f0f91fa549206f75ea7162bb3ac303ce065d205d81a34c14719d0b702240443109c1b816e8fc264478e598c

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c3113e8db1626f66dbcfb9ba699d9c33

            SHA1

            cba4e4cda1bcfa62b7d3810b111b65f3a29f1d0d

            SHA256

            323f858c25b5abca0f5278982db8ba77d35847ac0d71eeadd1f1b4c737c9db0c

            SHA512

            c75b7a8b91db75a97f17a144a52d0159788327542f0f91fa549206f75ea7162bb3ac303ce065d205d81a34c14719d0b702240443109c1b816e8fc264478e598c

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            db2ab22f5fa14adb191872a81cb261e2

            SHA1

            b4d1e3901668fb0a54de8b27cdac68b82a7fb023

            SHA256

            9c6b1bae80a61cfc073c6bede1c6af2d37eef9d15bfc4118094068b0a61aed3e

            SHA512

            7dd58ccb344a9182d12e038e3d63659374de7da2d73c91cf37efb1727874265a99fb6ef3130d2f22d11cbe89ee288972af1ead7e6018be8792857e3cec421db2

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            db2ab22f5fa14adb191872a81cb261e2

            SHA1

            b4d1e3901668fb0a54de8b27cdac68b82a7fb023

            SHA256

            9c6b1bae80a61cfc073c6bede1c6af2d37eef9d15bfc4118094068b0a61aed3e

            SHA512

            7dd58ccb344a9182d12e038e3d63659374de7da2d73c91cf37efb1727874265a99fb6ef3130d2f22d11cbe89ee288972af1ead7e6018be8792857e3cec421db2

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            ae7c8f764e6db22d580ee98ea989f01e

            SHA1

            d18ae0122a21854ea244a57f3e0df8d013e10167

            SHA256

            ef9613ddfffa672455e06ef0ca91532f90e2e816687d49caa15295edf50d9fb9

            SHA512

            63dacdafd2f37014e784c1c01f7893d86c79bb61a0fa2c43ffe944ee05a5e88534d24d7087f63d281e9c71b3723c80cefe4685777b8747de774e840f4106163a

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            1cd8142be4ec672a92d31f96fca38d5a

            SHA1

            1575d3ad041c53a412eb28a1baec643c5b8ba1ab

            SHA256

            8e9f0d7e6f322e4657e81ce1a79edf006264ac262cc33568a0408e9dfb12660d

            SHA512

            f95e2e456c5d667b4a63a6b3fc925d2ceac460f4e6e311316227d6b234cf862c9232c6f9c8c44a2c2744da609d6e2d90410dbd355112bbe215e921541b416a5f

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            168bfdb42d6971c14021768637dbcd12

            SHA1

            26b7bb714beb48023d4df5606595a358249bfcb3

            SHA256

            9a010488b63ed866fd5a77279066f857b3ff7b1f34ef5f2b1eb9b228ec8e78c5

            SHA512

            1fe06496564f1e24923a8f2f1b3f364dbfee0e1b141e4157993dd4a929e38f098a26fe7bdf66197b9be39501c013c566fcdb630e0274fded15f4765bf76e9b9a

          • memory/1064-86-0x0000000000000000-mapping.dmp
          • memory/1368-70-0x0000000000000000-mapping.dmp
          • memory/1456-62-0x0000000000000000-mapping.dmp
          • memory/1524-76-0x0000000000000000-mapping.dmp
          • memory/1532-59-0x0000000000000000-mapping.dmp
          • memory/1596-61-0x0000000000000000-mapping.dmp
          • memory/1644-58-0x0000000000000000-mapping.dmp
          • memory/1668-81-0x0000000000000000-mapping.dmp
          • memory/1720-64-0x0000000000000000-mapping.dmp
          • memory/1748-87-0x0000000000000000-mapping.dmp
          • memory/1976-80-0x0000000000000000-mapping.dmp
          • memory/2036-54-0x0000000075C61000-0x0000000075C63000-memory.dmp
            Filesize

            8KB

          • memory/2036-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2036-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB