Analysis

  • max time kernel
    44s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    0a7e0215af1c6285400f143fac99132e6dc3f947ca1a6004d3b126a08ec00163.exe

  • Size

    602KB

  • MD5

    b3000958da5604040e5d42902bc9fc66

  • SHA1

    4ee364f14be3a75cf1f5540d8724eaedbe7b4338

  • SHA256

    0a7e0215af1c6285400f143fac99132e6dc3f947ca1a6004d3b126a08ec00163

  • SHA512

    41649f1656f85776ed0dbb2dad1cd27253bd9109a7b23becfa35ada31bda2c6c6cbd52afbacf5f49d4b1e18e31c8fde6e28c40dc9bda4a8c26763bba629e958a

  • SSDEEP

    12288:PIny5DYTg+mSzjxY9O9mZMaPTHxuCRZZenpo51NqzYcs91:XUTg3etotRTHxueuorNI03

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\0a7e0215af1c6285400f143fac99132e6dc3f947ca1a6004d3b126a08ec00163.exe
    "C:\Users\Admin\AppData\Local\Temp\0a7e0215af1c6285400f143fac99132e6dc3f947ca1a6004d3b126a08ec00163.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:1664
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1460
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1136
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1276
        • 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:1260
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1732
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1196
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1748
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1540
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1480
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1860
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1320

          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

            178738348431223029a970dc3366850f

            SHA1

            3a63af1200ceb10b237ca440744226cce3944feb

            SHA256

            e0718fe0fed95d088f00a8700c6f7cc097ef90f807c2aedc4a0354a7944c3a7e

            SHA512

            ff8140df4dfd793f8819c33908f20c07d2d4edec1b29a6bf3ff78cef728ebb6dd05f915ea7a4771a126ee57c259c99d6b05632a44358ad0eeefb7af6a6446e70

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

            241KB

            MD5

            09733c841d7e9d950a8a337dd1cab9fe

            SHA1

            9a37d9f15081780b214a8d7e30cb43e3f40a4965

            SHA256

            a587a4210beb93e60e20a3083c8d237de0d6928bbcafe4bbf3ed8200725f3e39

            SHA512

            a869a7e9cbf3bcd2343b71a5f83facc8bfa823e4b3c747d97f07fadbecd98869288f9d3773e41ab3a030cb0316024f454a13ac4c8f9f9d783000ac9d7c9f1854

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

            108KB

            MD5

            3e7ada4be051a32547c20c16d3cbe494

            SHA1

            7ff834a7b66940d0bce1a7cc8beb3479af36ae83

            SHA256

            fd49b79bc6a28d5eebd41566a638ce716a30874b561d2329a5cbf383d96ed777

            SHA512

            b14da1fbb1b2bb4d205e6e8a5b199997c5d4bb4378cdfd120a2c66d381161e8bb9e2e8a990c8c275c6058f2b169d4de5024e1e764422bf5876f22563cfebe6dd

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

            176KB

            MD5

            4fffa466cce8cfe88fe9ee177cb09f90

            SHA1

            61a67e294dbad4a369153b04393411992d8dd69e

            SHA256

            94db6a05447f22ca0386fffd0f609ccb6c6c657c5d47aa5176212653ee83a824

            SHA512

            46cfe5d229e7189d8e48142af073f19a97f3d45ffcf51beb94962476bf030801c2a56c0372ca3c02b8eb7e9e429925e62b4f10999d76298e5dffb4ed8f08a206

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

            176KB

            MD5

            4fffa466cce8cfe88fe9ee177cb09f90

            SHA1

            61a67e294dbad4a369153b04393411992d8dd69e

            SHA256

            94db6a05447f22ca0386fffd0f609ccb6c6c657c5d47aa5176212653ee83a824

            SHA512

            46cfe5d229e7189d8e48142af073f19a97f3d45ffcf51beb94962476bf030801c2a56c0372ca3c02b8eb7e9e429925e62b4f10999d76298e5dffb4ed8f08a206

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

            158KB

            MD5

            642f59a9d82a8eab07106e327bff7bba

            SHA1

            9ce8f680e27a2ea9968bcf5cad7140e27e9dd5b8

            SHA256

            139ed41245fac7830d723779fe557e352ae15cb53befef172df60fe4a76da4c0

            SHA512

            85d44a4274a46555d2e6349188988be53b7957f3ff19ededbdb8cb4ce4f347a1f20576daa90b5e6f08e487d313880c90fc4ed8c550b57b1a12af23ab7a7784b5

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

            158KB

            MD5

            642f59a9d82a8eab07106e327bff7bba

            SHA1

            9ce8f680e27a2ea9968bcf5cad7140e27e9dd5b8

            SHA256

            139ed41245fac7830d723779fe557e352ae15cb53befef172df60fe4a76da4c0

            SHA512

            85d44a4274a46555d2e6349188988be53b7957f3ff19ededbdb8cb4ce4f347a1f20576daa90b5e6f08e487d313880c90fc4ed8c550b57b1a12af23ab7a7784b5

          • \Users\Admin\AppData\Local\Temp\nsy371A.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy371A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy371A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy371A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy371A.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            178738348431223029a970dc3366850f

            SHA1

            3a63af1200ceb10b237ca440744226cce3944feb

            SHA256

            e0718fe0fed95d088f00a8700c6f7cc097ef90f807c2aedc4a0354a7944c3a7e

            SHA512

            ff8140df4dfd793f8819c33908f20c07d2d4edec1b29a6bf3ff78cef728ebb6dd05f915ea7a4771a126ee57c259c99d6b05632a44358ad0eeefb7af6a6446e70

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            178738348431223029a970dc3366850f

            SHA1

            3a63af1200ceb10b237ca440744226cce3944feb

            SHA256

            e0718fe0fed95d088f00a8700c6f7cc097ef90f807c2aedc4a0354a7944c3a7e

            SHA512

            ff8140df4dfd793f8819c33908f20c07d2d4edec1b29a6bf3ff78cef728ebb6dd05f915ea7a4771a126ee57c259c99d6b05632a44358ad0eeefb7af6a6446e70

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            178738348431223029a970dc3366850f

            SHA1

            3a63af1200ceb10b237ca440744226cce3944feb

            SHA256

            e0718fe0fed95d088f00a8700c6f7cc097ef90f807c2aedc4a0354a7944c3a7e

            SHA512

            ff8140df4dfd793f8819c33908f20c07d2d4edec1b29a6bf3ff78cef728ebb6dd05f915ea7a4771a126ee57c259c99d6b05632a44358ad0eeefb7af6a6446e70

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            09733c841d7e9d950a8a337dd1cab9fe

            SHA1

            9a37d9f15081780b214a8d7e30cb43e3f40a4965

            SHA256

            a587a4210beb93e60e20a3083c8d237de0d6928bbcafe4bbf3ed8200725f3e39

            SHA512

            a869a7e9cbf3bcd2343b71a5f83facc8bfa823e4b3c747d97f07fadbecd98869288f9d3773e41ab3a030cb0316024f454a13ac4c8f9f9d783000ac9d7c9f1854

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            09733c841d7e9d950a8a337dd1cab9fe

            SHA1

            9a37d9f15081780b214a8d7e30cb43e3f40a4965

            SHA256

            a587a4210beb93e60e20a3083c8d237de0d6928bbcafe4bbf3ed8200725f3e39

            SHA512

            a869a7e9cbf3bcd2343b71a5f83facc8bfa823e4b3c747d97f07fadbecd98869288f9d3773e41ab3a030cb0316024f454a13ac4c8f9f9d783000ac9d7c9f1854

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            3e7ada4be051a32547c20c16d3cbe494

            SHA1

            7ff834a7b66940d0bce1a7cc8beb3479af36ae83

            SHA256

            fd49b79bc6a28d5eebd41566a638ce716a30874b561d2329a5cbf383d96ed777

            SHA512

            b14da1fbb1b2bb4d205e6e8a5b199997c5d4bb4378cdfd120a2c66d381161e8bb9e2e8a990c8c275c6058f2b169d4de5024e1e764422bf5876f22563cfebe6dd

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            4fffa466cce8cfe88fe9ee177cb09f90

            SHA1

            61a67e294dbad4a369153b04393411992d8dd69e

            SHA256

            94db6a05447f22ca0386fffd0f609ccb6c6c657c5d47aa5176212653ee83a824

            SHA512

            46cfe5d229e7189d8e48142af073f19a97f3d45ffcf51beb94962476bf030801c2a56c0372ca3c02b8eb7e9e429925e62b4f10999d76298e5dffb4ed8f08a206

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            642f59a9d82a8eab07106e327bff7bba

            SHA1

            9ce8f680e27a2ea9968bcf5cad7140e27e9dd5b8

            SHA256

            139ed41245fac7830d723779fe557e352ae15cb53befef172df60fe4a76da4c0

            SHA512

            85d44a4274a46555d2e6349188988be53b7957f3ff19ededbdb8cb4ce4f347a1f20576daa90b5e6f08e487d313880c90fc4ed8c550b57b1a12af23ab7a7784b5

          • memory/1136-61-0x0000000000000000-mapping.dmp
          • memory/1196-80-0x0000000000000000-mapping.dmp
          • memory/1260-70-0x0000000000000000-mapping.dmp
          • memory/1276-62-0x0000000000000000-mapping.dmp
          • memory/1460-58-0x0000000000000000-mapping.dmp
          • memory/1480-87-0x0000000000000000-mapping.dmp
          • memory/1540-86-0x0000000000000000-mapping.dmp
          • memory/1664-54-0x0000000076181000-0x0000000076183000-memory.dmp
            Filesize

            8KB

          • memory/1664-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1664-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1720-64-0x0000000000000000-mapping.dmp
          • memory/1732-76-0x0000000000000000-mapping.dmp
          • memory/1748-81-0x0000000000000000-mapping.dmp
          • memory/1976-57-0x0000000000000000-mapping.dmp