Analysis

  • max time kernel
    147s
  • max time network
    164s
  • 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 10:28

General

  • Target

    3e870d57561892b912259d18e3f5bd958de2f1add72b636fd6d0d85bf7147666.exe

  • Size

    602KB

  • MD5

    9e5aaa46ea0d93df4f8329fd8c1da4b9

  • SHA1

    a83cf097232af47261963727bc2f1e83d993ebf0

  • SHA256

    3e870d57561892b912259d18e3f5bd958de2f1add72b636fd6d0d85bf7147666

  • SHA512

    f4221bdf77f7c28ee6f610f8071397f0ae65db056f27f1913554eab58debd44ad99090f0f4fa4f706d92a7e90e4119ccb636d56c38c2c4b1f142bcf10966efd2

  • SSDEEP

    12288:PIny5DYTgxy1hezg9jK5Df1OMpD138xVobEAtUHWP:XUTgxXMeFB1sxVLRHWP

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\3e870d57561892b912259d18e3f5bd958de2f1add72b636fd6d0d85bf7147666.exe
    "C:\Users\Admin\AppData\Local\Temp\3e870d57561892b912259d18e3f5bd958de2f1add72b636fd6d0d85bf7147666.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:3576
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1596
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4364
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4884
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4092
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2992
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3848
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:720
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:112
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4352
          • 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:4520
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4280

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nscB388.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            82f8385f0e437c0efc24be29d620b406

            SHA1

            99cf6fb189fd2c14e0e5bfd5e0be515396319cb6

            SHA256

            44540861ba14a37dae35af84798a373d81a8d15f87df47caf2dd92de81a4788f

            SHA512

            482a5f36ae6f2a293ca2f9106604e7abceed911811f1434f6dc636fbfd410cdac02fb67deb6753f91811f0ce6c27ffe51c6e5d1b8f5abe0d236043faec62aad9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            82f8385f0e437c0efc24be29d620b406

            SHA1

            99cf6fb189fd2c14e0e5bfd5e0be515396319cb6

            SHA256

            44540861ba14a37dae35af84798a373d81a8d15f87df47caf2dd92de81a4788f

            SHA512

            482a5f36ae6f2a293ca2f9106604e7abceed911811f1434f6dc636fbfd410cdac02fb67deb6753f91811f0ce6c27ffe51c6e5d1b8f5abe0d236043faec62aad9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            82f8385f0e437c0efc24be29d620b406

            SHA1

            99cf6fb189fd2c14e0e5bfd5e0be515396319cb6

            SHA256

            44540861ba14a37dae35af84798a373d81a8d15f87df47caf2dd92de81a4788f

            SHA512

            482a5f36ae6f2a293ca2f9106604e7abceed911811f1434f6dc636fbfd410cdac02fb67deb6753f91811f0ce6c27ffe51c6e5d1b8f5abe0d236043faec62aad9

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            82f8385f0e437c0efc24be29d620b406

            SHA1

            99cf6fb189fd2c14e0e5bfd5e0be515396319cb6

            SHA256

            44540861ba14a37dae35af84798a373d81a8d15f87df47caf2dd92de81a4788f

            SHA512

            482a5f36ae6f2a293ca2f9106604e7abceed911811f1434f6dc636fbfd410cdac02fb67deb6753f91811f0ce6c27ffe51c6e5d1b8f5abe0d236043faec62aad9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6acf0669b7eabc3d870d723ad6ca9fe

            SHA1

            8b848840e5cb7146fe5ef4462c36d600001df7f9

            SHA256

            0f80d97c987ef83c63a8d13d8c03f5ec638a810bfda2336b1bffd6a75304096c

            SHA512

            64baf6aad6a6911550a67967b16fd2c173043997f6b2d2da8f30cfabad6760804a0af5934c4ada5645ed2d7dffd0968fed4664e0ab3112521758961e89ae69e0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6acf0669b7eabc3d870d723ad6ca9fe

            SHA1

            8b848840e5cb7146fe5ef4462c36d600001df7f9

            SHA256

            0f80d97c987ef83c63a8d13d8c03f5ec638a810bfda2336b1bffd6a75304096c

            SHA512

            64baf6aad6a6911550a67967b16fd2c173043997f6b2d2da8f30cfabad6760804a0af5934c4ada5645ed2d7dffd0968fed4664e0ab3112521758961e89ae69e0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            b6acf0669b7eabc3d870d723ad6ca9fe

            SHA1

            8b848840e5cb7146fe5ef4462c36d600001df7f9

            SHA256

            0f80d97c987ef83c63a8d13d8c03f5ec638a810bfda2336b1bffd6a75304096c

            SHA512

            64baf6aad6a6911550a67967b16fd2c173043997f6b2d2da8f30cfabad6760804a0af5934c4ada5645ed2d7dffd0968fed4664e0ab3112521758961e89ae69e0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b36b5fab64efb6cb69d6fc858702d413

            SHA1

            52289392661073467211f2d2d471e02b9c3bfb29

            SHA256

            14fcf3827e2bedac4c4e044200e137873ff5234b25e4d7a798eb604a95fc449e

            SHA512

            d7eaeb55726669d1113116807f9851bc1140484579825887685f0ecc76ac7e26da0d1b85cc0bd8f586b2cb3227b33fc86428cf0e3425f09d387f2b070ce637fc

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b36b5fab64efb6cb69d6fc858702d413

            SHA1

            52289392661073467211f2d2d471e02b9c3bfb29

            SHA256

            14fcf3827e2bedac4c4e044200e137873ff5234b25e4d7a798eb604a95fc449e

            SHA512

            d7eaeb55726669d1113116807f9851bc1140484579825887685f0ecc76ac7e26da0d1b85cc0bd8f586b2cb3227b33fc86428cf0e3425f09d387f2b070ce637fc

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c319672ad4459de85481f9a2e786e939

            SHA1

            757ef6f6dca9799ac1b6136677cdafe5386b0a19

            SHA256

            3f697b5efa25cf7b19cc55eeb959ae89c8e0a1ecaa7d9af19c00ef1b9139cbf9

            SHA512

            3b066c2d3015e392c70302b0af78652b292b3a6f85d202c32fe01c168fe2ed8d73d735992bb9a4669b6926b16e8190803a8aebd3d271cf523e1af42275da663c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c319672ad4459de85481f9a2e786e939

            SHA1

            757ef6f6dca9799ac1b6136677cdafe5386b0a19

            SHA256

            3f697b5efa25cf7b19cc55eeb959ae89c8e0a1ecaa7d9af19c00ef1b9139cbf9

            SHA512

            3b066c2d3015e392c70302b0af78652b292b3a6f85d202c32fe01c168fe2ed8d73d735992bb9a4669b6926b16e8190803a8aebd3d271cf523e1af42275da663c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c319672ad4459de85481f9a2e786e939

            SHA1

            757ef6f6dca9799ac1b6136677cdafe5386b0a19

            SHA256

            3f697b5efa25cf7b19cc55eeb959ae89c8e0a1ecaa7d9af19c00ef1b9139cbf9

            SHA512

            3b066c2d3015e392c70302b0af78652b292b3a6f85d202c32fe01c168fe2ed8d73d735992bb9a4669b6926b16e8190803a8aebd3d271cf523e1af42275da663c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97a504186483225b0c3a94ba37b049a1

            SHA1

            f383cca82bd9e641d9ffa47e902229a93e0368d9

            SHA256

            5a4e17818c9aabfdcbf0b2361ec4d44d1601cc93d45f9d9decf29b0dbe41fdb0

            SHA512

            546704d76e02546165ad78cf9469d978b3ef4b58227ca817f2d91456bc4916ffefd9f3bbb1d2c8a9dfb4994b7f3e4bcf6c4c3c8fd15aa0125c50860d71df90ca

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97a504186483225b0c3a94ba37b049a1

            SHA1

            f383cca82bd9e641d9ffa47e902229a93e0368d9

            SHA256

            5a4e17818c9aabfdcbf0b2361ec4d44d1601cc93d45f9d9decf29b0dbe41fdb0

            SHA512

            546704d76e02546165ad78cf9469d978b3ef4b58227ca817f2d91456bc4916ffefd9f3bbb1d2c8a9dfb4994b7f3e4bcf6c4c3c8fd15aa0125c50860d71df90ca

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            97a504186483225b0c3a94ba37b049a1

            SHA1

            f383cca82bd9e641d9ffa47e902229a93e0368d9

            SHA256

            5a4e17818c9aabfdcbf0b2361ec4d44d1601cc93d45f9d9decf29b0dbe41fdb0

            SHA512

            546704d76e02546165ad78cf9469d978b3ef4b58227ca817f2d91456bc4916ffefd9f3bbb1d2c8a9dfb4994b7f3e4bcf6c4c3c8fd15aa0125c50860d71df90ca

          • memory/112-165-0x0000000000000000-mapping.dmp

          • memory/720-159-0x0000000000000000-mapping.dmp

          • memory/1596-136-0x0000000000000000-mapping.dmp

          • memory/1664-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2992-153-0x0000000000000000-mapping.dmp

          • memory/3576-135-0x0000000000000000-mapping.dmp

          • memory/3848-158-0x0000000000000000-mapping.dmp

          • memory/4092-147-0x0000000000000000-mapping.dmp

          • memory/4352-166-0x0000000000000000-mapping.dmp

          • memory/4364-141-0x0000000000000000-mapping.dmp

          • memory/4884-142-0x0000000000000000-mapping.dmp

          • memory/4964-140-0x0000000000000000-mapping.dmp