Analysis

  • max time kernel
    141s
  • max time network
    181s
  • 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 10:36

General

  • Target

    d5502f02bc0e3b088ad2e5ab03797f0edecdd4d93acd3bd48d7b1973e9a88cce.exe

  • Size

    557KB

  • MD5

    a538cafdf775241d6b6b3001452fc790

  • SHA1

    c46bf357eabddee97d5f7d396c7a34a7702f2bca

  • SHA256

    d5502f02bc0e3b088ad2e5ab03797f0edecdd4d93acd3bd48d7b1973e9a88cce

  • SHA512

    7eeae67431335544eeba13713c8f40f05056c3a8c1d988a7202d222324c715e340ac345016ee8be7c64970ebb960873927e2e39f7fd67419597a1d71d788131f

  • SSDEEP

    12288:O2hB6D/bfexMTapUCklRXMU1TbZ2PJWAl2hN5K8UFd46:CDjfRTapUbleUFbW1MjMpT

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\d5502f02bc0e3b088ad2e5ab03797f0edecdd4d93acd3bd48d7b1973e9a88cce.exe
    "C:\Users\Admin\AppData\Local\Temp\d5502f02bc0e3b088ad2e5ab03797f0edecdd4d93acd3bd48d7b1973e9a88cce.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:3536
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1696
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1088
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1496
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2600
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1572
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1816
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2364
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2224
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:964
          • 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:320
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4192

          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:\Users\Admin\AppData\Local\Temp\nso104E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nso104E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            207c8a8512e954d38d2279f27b294b42

            SHA1

            a63451ea5820692096b68e2ea84cd93d2b7341d5

            SHA256

            777a95a56f30cb61f66dd8707242a97cf9503c8ab53c5a64751beb1d6566d9d9

            SHA512

            698534bf06e91469b86a69a3c7aca03c88db1c09d0322b8d4de27ca261415a9496cafc8c1e5b60a31bc57e576d775076670966772ab33fc357c226850b97dd60

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

            106KB

            MD5

            207c8a8512e954d38d2279f27b294b42

            SHA1

            a63451ea5820692096b68e2ea84cd93d2b7341d5

            SHA256

            777a95a56f30cb61f66dd8707242a97cf9503c8ab53c5a64751beb1d6566d9d9

            SHA512

            698534bf06e91469b86a69a3c7aca03c88db1c09d0322b8d4de27ca261415a9496cafc8c1e5b60a31bc57e576d775076670966772ab33fc357c226850b97dd60

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

            106KB

            MD5

            207c8a8512e954d38d2279f27b294b42

            SHA1

            a63451ea5820692096b68e2ea84cd93d2b7341d5

            SHA256

            777a95a56f30cb61f66dd8707242a97cf9503c8ab53c5a64751beb1d6566d9d9

            SHA512

            698534bf06e91469b86a69a3c7aca03c88db1c09d0322b8d4de27ca261415a9496cafc8c1e5b60a31bc57e576d775076670966772ab33fc357c226850b97dd60

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

            106KB

            MD5

            207c8a8512e954d38d2279f27b294b42

            SHA1

            a63451ea5820692096b68e2ea84cd93d2b7341d5

            SHA256

            777a95a56f30cb61f66dd8707242a97cf9503c8ab53c5a64751beb1d6566d9d9

            SHA512

            698534bf06e91469b86a69a3c7aca03c88db1c09d0322b8d4de27ca261415a9496cafc8c1e5b60a31bc57e576d775076670966772ab33fc357c226850b97dd60

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

            241KB

            MD5

            417fed2c2aabb9401dafcb3ebffe9630

            SHA1

            55603c189140a7f691b28456df23ca65191b6524

            SHA256

            64ea163d92af77056d8f8b40cfdec1eba4f52c438f225ca9993d83d0b9561334

            SHA512

            1b7a6dfe7a367a42cf0a8db2fe8b6de06f38587ce10d493be0a6aa5e7099d6d47bfb75df7adc298a4734b3382db5b640aee41212e1bd0de0218a991c1d3e1655

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

            241KB

            MD5

            417fed2c2aabb9401dafcb3ebffe9630

            SHA1

            55603c189140a7f691b28456df23ca65191b6524

            SHA256

            64ea163d92af77056d8f8b40cfdec1eba4f52c438f225ca9993d83d0b9561334

            SHA512

            1b7a6dfe7a367a42cf0a8db2fe8b6de06f38587ce10d493be0a6aa5e7099d6d47bfb75df7adc298a4734b3382db5b640aee41212e1bd0de0218a991c1d3e1655

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

            241KB

            MD5

            417fed2c2aabb9401dafcb3ebffe9630

            SHA1

            55603c189140a7f691b28456df23ca65191b6524

            SHA256

            64ea163d92af77056d8f8b40cfdec1eba4f52c438f225ca9993d83d0b9561334

            SHA512

            1b7a6dfe7a367a42cf0a8db2fe8b6de06f38587ce10d493be0a6aa5e7099d6d47bfb75df7adc298a4734b3382db5b640aee41212e1bd0de0218a991c1d3e1655

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

            108KB

            MD5

            65be55e919ec4445a86a334157d2a49f

            SHA1

            c89f59668a6d3e003c51ce0f964beeeb1a933792

            SHA256

            fe67e1b044f75e3e92c64a0acf90b48d7b3c6d32561b3bb3ff14f5fe07bce883

            SHA512

            489f01249dc1bc04341de13f008156429d37674020c017022fb392f3e4baa23b38b829b46671dbe87e51809d5cbe05efe26dfe5712d234f9644a23b7f1e7c78c

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

            108KB

            MD5

            65be55e919ec4445a86a334157d2a49f

            SHA1

            c89f59668a6d3e003c51ce0f964beeeb1a933792

            SHA256

            fe67e1b044f75e3e92c64a0acf90b48d7b3c6d32561b3bb3ff14f5fe07bce883

            SHA512

            489f01249dc1bc04341de13f008156429d37674020c017022fb392f3e4baa23b38b829b46671dbe87e51809d5cbe05efe26dfe5712d234f9644a23b7f1e7c78c

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

            176KB

            MD5

            da0f2553b3c5d052409f895382145a1e

            SHA1

            2944cf7b5ef876aecf677b2391af4740921d0f50

            SHA256

            f3ade93f4b34d8f38a8fc403af6e34cef0bf0b18248e8b4e22b76aa17cf9b55d

            SHA512

            f38a3e6618c9a76d5c848cd9b250a2f13f4443f9affd32b88c74efb83aeb2c918029cb7ea73f5923510f4bb9a1dfb8de73cf8bd3cc768cae3d813c16442dee86

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

            176KB

            MD5

            da0f2553b3c5d052409f895382145a1e

            SHA1

            2944cf7b5ef876aecf677b2391af4740921d0f50

            SHA256

            f3ade93f4b34d8f38a8fc403af6e34cef0bf0b18248e8b4e22b76aa17cf9b55d

            SHA512

            f38a3e6618c9a76d5c848cd9b250a2f13f4443f9affd32b88c74efb83aeb2c918029cb7ea73f5923510f4bb9a1dfb8de73cf8bd3cc768cae3d813c16442dee86

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

            176KB

            MD5

            da0f2553b3c5d052409f895382145a1e

            SHA1

            2944cf7b5ef876aecf677b2391af4740921d0f50

            SHA256

            f3ade93f4b34d8f38a8fc403af6e34cef0bf0b18248e8b4e22b76aa17cf9b55d

            SHA512

            f38a3e6618c9a76d5c848cd9b250a2f13f4443f9affd32b88c74efb83aeb2c918029cb7ea73f5923510f4bb9a1dfb8de73cf8bd3cc768cae3d813c16442dee86

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

            158KB

            MD5

            106da9cd4e2f5f1476722a05f7ccc432

            SHA1

            e84fb422759c4ab90b6355fdbd1381811b4c7be0

            SHA256

            f4c40b6936b5610567b3a115f51f569c5aeada7ba32403aaa422d3de1cc66dae

            SHA512

            954b32542704498f3f8ce3f532dd78ca0101b8e49d05ac95c9a1a0b0a78c9908ec001c45d116decbf9fcc9a3c4a3c445d62886786eaae913d6e7a109d21d8b73

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

            158KB

            MD5

            106da9cd4e2f5f1476722a05f7ccc432

            SHA1

            e84fb422759c4ab90b6355fdbd1381811b4c7be0

            SHA256

            f4c40b6936b5610567b3a115f51f569c5aeada7ba32403aaa422d3de1cc66dae

            SHA512

            954b32542704498f3f8ce3f532dd78ca0101b8e49d05ac95c9a1a0b0a78c9908ec001c45d116decbf9fcc9a3c4a3c445d62886786eaae913d6e7a109d21d8b73

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

            158KB

            MD5

            106da9cd4e2f5f1476722a05f7ccc432

            SHA1

            e84fb422759c4ab90b6355fdbd1381811b4c7be0

            SHA256

            f4c40b6936b5610567b3a115f51f569c5aeada7ba32403aaa422d3de1cc66dae

            SHA512

            954b32542704498f3f8ce3f532dd78ca0101b8e49d05ac95c9a1a0b0a78c9908ec001c45d116decbf9fcc9a3c4a3c445d62886786eaae913d6e7a109d21d8b73

          • memory/964-166-0x0000000000000000-mapping.dmp
          • memory/1088-141-0x0000000000000000-mapping.dmp
          • memory/1496-142-0x0000000000000000-mapping.dmp
          • memory/1572-153-0x0000000000000000-mapping.dmp
          • memory/1696-140-0x0000000000000000-mapping.dmp
          • memory/1816-158-0x0000000000000000-mapping.dmp
          • memory/2224-165-0x0000000000000000-mapping.dmp
          • memory/2364-159-0x0000000000000000-mapping.dmp
          • memory/2600-147-0x0000000000000000-mapping.dmp
          • memory/3536-132-0x0000000000370000-0x00000000007BE000-memory.dmp
            Filesize

            4.3MB

          • memory/3536-168-0x0000000000370000-0x00000000007BE000-memory.dmp
            Filesize

            4.3MB

          • memory/4376-136-0x0000000000000000-mapping.dmp
          • memory/5020-137-0x0000000000000000-mapping.dmp