Analysis

  • max time kernel
    112s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:11

General

  • Target

    cfea02b8cd4d483f37d66d4af5e6bdf69169b583e16157a37ca16d6b3b08b0d8.exe

  • Size

    602KB

  • MD5

    1a0131821e4ad3bb207ef6bfa759155e

  • SHA1

    e89605987ff7c32a65fa242e478f5b4df7b5fd0c

  • SHA256

    cfea02b8cd4d483f37d66d4af5e6bdf69169b583e16157a37ca16d6b3b08b0d8

  • SHA512

    a71d8b7b2e428b6b4c504e652e8798bb63d4c90668b2798af629b5b401e023fc2f069621f1434cfccc6463981dc021084140405d66cfb016798eabdea75dccf5

  • SSDEEP

    12288:CIny5DYTjQWvlR6726ZLCb2JOzXlnWxbluglv3cJadpL:kUTjVvl6Cb9zXlkbgk3cwP

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfea02b8cd4d483f37d66d4af5e6bdf69169b583e16157a37ca16d6b3b08b0d8.exe
    "C:\Users\Admin\AppData\Local\Temp\cfea02b8cd4d483f37d66d4af5e6bdf69169b583e16157a37ca16d6b3b08b0d8.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:4972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:60
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1428
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1368
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5092
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2308
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5112
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2124
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1252
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1288
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3748
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3308
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2908

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD46E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b757be5b0fa92b8cd0048a00e34e21a6

            SHA1

            fa16c910964a8f72b38cc746eee849ee63e6b599

            SHA256

            ffb57faaa6011fdca6ba30af15b714484a65c5eae40a1fe4f5463375ce64c63c

            SHA512

            4c67858579df40b3439afd89d71ff60b77514332622e43ac67f3053ca1fb80faa9bb5ff280c6657f62a02416aa97f282349f8d6ca29fe8ae3999c81a751068bb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b757be5b0fa92b8cd0048a00e34e21a6

            SHA1

            fa16c910964a8f72b38cc746eee849ee63e6b599

            SHA256

            ffb57faaa6011fdca6ba30af15b714484a65c5eae40a1fe4f5463375ce64c63c

            SHA512

            4c67858579df40b3439afd89d71ff60b77514332622e43ac67f3053ca1fb80faa9bb5ff280c6657f62a02416aa97f282349f8d6ca29fe8ae3999c81a751068bb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b757be5b0fa92b8cd0048a00e34e21a6

            SHA1

            fa16c910964a8f72b38cc746eee849ee63e6b599

            SHA256

            ffb57faaa6011fdca6ba30af15b714484a65c5eae40a1fe4f5463375ce64c63c

            SHA512

            4c67858579df40b3439afd89d71ff60b77514332622e43ac67f3053ca1fb80faa9bb5ff280c6657f62a02416aa97f282349f8d6ca29fe8ae3999c81a751068bb

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b757be5b0fa92b8cd0048a00e34e21a6

            SHA1

            fa16c910964a8f72b38cc746eee849ee63e6b599

            SHA256

            ffb57faaa6011fdca6ba30af15b714484a65c5eae40a1fe4f5463375ce64c63c

            SHA512

            4c67858579df40b3439afd89d71ff60b77514332622e43ac67f3053ca1fb80faa9bb5ff280c6657f62a02416aa97f282349f8d6ca29fe8ae3999c81a751068bb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2a3717b4873687c6ba4b70231200708

            SHA1

            62857a9e4c367491964487e92a1b0175f2ecbc72

            SHA256

            d3b66928621a2e1586622e832c09ce7556a9481ac328626e5d951ea2e792e3e2

            SHA512

            f4bf4e3009eefb70dc8af997fac23e0c7b80c99280d98a052ad80bf40c9a0265cf678a4c8c0956230b4d2bf6628656140cec98c6d671c9b0b86ac017337df635

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2a3717b4873687c6ba4b70231200708

            SHA1

            62857a9e4c367491964487e92a1b0175f2ecbc72

            SHA256

            d3b66928621a2e1586622e832c09ce7556a9481ac328626e5d951ea2e792e3e2

            SHA512

            f4bf4e3009eefb70dc8af997fac23e0c7b80c99280d98a052ad80bf40c9a0265cf678a4c8c0956230b4d2bf6628656140cec98c6d671c9b0b86ac017337df635

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e2a3717b4873687c6ba4b70231200708

            SHA1

            62857a9e4c367491964487e92a1b0175f2ecbc72

            SHA256

            d3b66928621a2e1586622e832c09ce7556a9481ac328626e5d951ea2e792e3e2

            SHA512

            f4bf4e3009eefb70dc8af997fac23e0c7b80c99280d98a052ad80bf40c9a0265cf678a4c8c0956230b4d2bf6628656140cec98c6d671c9b0b86ac017337df635

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            83a9d5115a221873e0627f04077fa44e

            SHA1

            b26c7bd4b74c8357ac608386de3fcfa4ffd9955b

            SHA256

            1cc2ea663c5f6adeabea273d6ad83536dfed7267c8237b6cf5379cd9abe526af

            SHA512

            654bddd891bc768c76111effb07a843cb3507e20ca7bc851d82e5db2a1fe3993aead6eb8a678265284149dce6dca25ce6b82c5b6f46ac4030974a86902eca408

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            83a9d5115a221873e0627f04077fa44e

            SHA1

            b26c7bd4b74c8357ac608386de3fcfa4ffd9955b

            SHA256

            1cc2ea663c5f6adeabea273d6ad83536dfed7267c8237b6cf5379cd9abe526af

            SHA512

            654bddd891bc768c76111effb07a843cb3507e20ca7bc851d82e5db2a1fe3993aead6eb8a678265284149dce6dca25ce6b82c5b6f46ac4030974a86902eca408

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e4464f220a811e0f5e9335105fc2d91

            SHA1

            3a195c9c30d473868f03ac7339e1bb86dadb1ebc

            SHA256

            3749521a50e0b7433e46fc464ce6d6888daf0aed6e748fc61e5b295630a34fe4

            SHA512

            a11515ea398f3e03a86550d7c66de33cf3d82a30e515339d30a0eed01ae61d808e173becd80de4c2a7509171602278724185dc865927aa909b56c542ebfbfcac

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e4464f220a811e0f5e9335105fc2d91

            SHA1

            3a195c9c30d473868f03ac7339e1bb86dadb1ebc

            SHA256

            3749521a50e0b7433e46fc464ce6d6888daf0aed6e748fc61e5b295630a34fe4

            SHA512

            a11515ea398f3e03a86550d7c66de33cf3d82a30e515339d30a0eed01ae61d808e173becd80de4c2a7509171602278724185dc865927aa909b56c542ebfbfcac

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e4464f220a811e0f5e9335105fc2d91

            SHA1

            3a195c9c30d473868f03ac7339e1bb86dadb1ebc

            SHA256

            3749521a50e0b7433e46fc464ce6d6888daf0aed6e748fc61e5b295630a34fe4

            SHA512

            a11515ea398f3e03a86550d7c66de33cf3d82a30e515339d30a0eed01ae61d808e173becd80de4c2a7509171602278724185dc865927aa909b56c542ebfbfcac

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1feedf68b552dae8f623f7b7351da38

            SHA1

            986b5605dd562c7e67539f99413afaefceb730bd

            SHA256

            e9119889ab22197bfa449207e69cf116a1b09dd0a88fa9a093ab708596c628ae

            SHA512

            0bb0a33d87108e5911155db53953fb740bf85e2e0cf43708476cbd2bad85399431c10e44c8d2c2caa0546f475eaf3005f569f6df16750c3addfee784f153ceb7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1feedf68b552dae8f623f7b7351da38

            SHA1

            986b5605dd562c7e67539f99413afaefceb730bd

            SHA256

            e9119889ab22197bfa449207e69cf116a1b09dd0a88fa9a093ab708596c628ae

            SHA512

            0bb0a33d87108e5911155db53953fb740bf85e2e0cf43708476cbd2bad85399431c10e44c8d2c2caa0546f475eaf3005f569f6df16750c3addfee784f153ceb7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            b1feedf68b552dae8f623f7b7351da38

            SHA1

            986b5605dd562c7e67539f99413afaefceb730bd

            SHA256

            e9119889ab22197bfa449207e69cf116a1b09dd0a88fa9a093ab708596c628ae

            SHA512

            0bb0a33d87108e5911155db53953fb740bf85e2e0cf43708476cbd2bad85399431c10e44c8d2c2caa0546f475eaf3005f569f6df16750c3addfee784f153ceb7

          • memory/60-137-0x0000000000000000-mapping.dmp

          • memory/1252-159-0x0000000000000000-mapping.dmp

          • memory/1288-165-0x0000000000000000-mapping.dmp

          • memory/1368-141-0x0000000000000000-mapping.dmp

          • memory/1428-140-0x0000000000000000-mapping.dmp

          • memory/2124-158-0x0000000000000000-mapping.dmp

          • memory/2308-147-0x0000000000000000-mapping.dmp

          • memory/2860-136-0x0000000000000000-mapping.dmp

          • memory/3748-166-0x0000000000000000-mapping.dmp

          • memory/4972-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4972-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5092-142-0x0000000000000000-mapping.dmp

          • memory/5112-153-0x0000000000000000-mapping.dmp