Analysis

  • max time kernel
    112s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 21:44

General

  • Target

    7322b37299df513c2e3f39ba23d4074d0f5b9e93e3686dc9ed8afa301e699d60.exe

  • Size

    562KB

  • MD5

    f34cac592261240b49b48608707d40cf

  • SHA1

    66e5e768f4730c3b74927a2e195996f30c5284e2

  • SHA256

    7322b37299df513c2e3f39ba23d4074d0f5b9e93e3686dc9ed8afa301e699d60

  • SHA512

    1065a673b80a83770f91b1ffcade8964dac7e5c0cdceb5a546e848d6ce33af1d462af4bf0d37b470e268412e620c8480f60487364c52716ed904ea417548553b

  • SSDEEP

    12288:GPRYzJbfGHgneGoXINOKueldS4+kr5ZQh99M:7z9fdeLlKf3SLkrnIy

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\7322b37299df513c2e3f39ba23d4074d0f5b9e93e3686dc9ed8afa301e699d60.exe
    "C:\Users\Admin\AppData\Local\Temp\7322b37299df513c2e3f39ba23d4074d0f5b9e93e3686dc9ed8afa301e699d60.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:3548
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4852
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4976
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4360
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1252
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:740
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1876
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2220
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2204
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1620
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3732
          • 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:3764
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3744

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsa95DE.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  477a504d923cee7e6beb14139795944e

                  SHA1

                  d587a57e94d14f06d7c624c296b2bd41dd58500a

                  SHA256

                  03cf6629a5dd4fbb363fa35af881409a8f4d5198de90d8735cb647755f2bd973

                  SHA512

                  d5befc8e506168a5f4ecfa4c2d74a29066394f32365b421fd9748884b7f659a1f91d58efa35a51f338903b03430e98d577c5784e4d31e7f3b224b54a4c887163

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  477a504d923cee7e6beb14139795944e

                  SHA1

                  d587a57e94d14f06d7c624c296b2bd41dd58500a

                  SHA256

                  03cf6629a5dd4fbb363fa35af881409a8f4d5198de90d8735cb647755f2bd973

                  SHA512

                  d5befc8e506168a5f4ecfa4c2d74a29066394f32365b421fd9748884b7f659a1f91d58efa35a51f338903b03430e98d577c5784e4d31e7f3b224b54a4c887163

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  477a504d923cee7e6beb14139795944e

                  SHA1

                  d587a57e94d14f06d7c624c296b2bd41dd58500a

                  SHA256

                  03cf6629a5dd4fbb363fa35af881409a8f4d5198de90d8735cb647755f2bd973

                  SHA512

                  d5befc8e506168a5f4ecfa4c2d74a29066394f32365b421fd9748884b7f659a1f91d58efa35a51f338903b03430e98d577c5784e4d31e7f3b224b54a4c887163

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  477a504d923cee7e6beb14139795944e

                  SHA1

                  d587a57e94d14f06d7c624c296b2bd41dd58500a

                  SHA256

                  03cf6629a5dd4fbb363fa35af881409a8f4d5198de90d8735cb647755f2bd973

                  SHA512

                  d5befc8e506168a5f4ecfa4c2d74a29066394f32365b421fd9748884b7f659a1f91d58efa35a51f338903b03430e98d577c5784e4d31e7f3b224b54a4c887163

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6434a0d7f631658faadb84d4c2ddf94e

                  SHA1

                  24a1572a1652d6a8071be8ccecc93faa41a30349

                  SHA256

                  ce0b9b7b81b922d1b50569fcdd3716e4dfb9017f174e403816691cf2ca739c91

                  SHA512

                  555e75a229c74180d880a015e41a503dc01a1267ec7cd1c2907703ecc0d9acd6bb1195a5b6ee044663ba3704879f4c740fdc3b0a74360d789b07f099cf6b412d

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6434a0d7f631658faadb84d4c2ddf94e

                  SHA1

                  24a1572a1652d6a8071be8ccecc93faa41a30349

                  SHA256

                  ce0b9b7b81b922d1b50569fcdd3716e4dfb9017f174e403816691cf2ca739c91

                  SHA512

                  555e75a229c74180d880a015e41a503dc01a1267ec7cd1c2907703ecc0d9acd6bb1195a5b6ee044663ba3704879f4c740fdc3b0a74360d789b07f099cf6b412d

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  6434a0d7f631658faadb84d4c2ddf94e

                  SHA1

                  24a1572a1652d6a8071be8ccecc93faa41a30349

                  SHA256

                  ce0b9b7b81b922d1b50569fcdd3716e4dfb9017f174e403816691cf2ca739c91

                  SHA512

                  555e75a229c74180d880a015e41a503dc01a1267ec7cd1c2907703ecc0d9acd6bb1195a5b6ee044663ba3704879f4c740fdc3b0a74360d789b07f099cf6b412d

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  9998e71fbce958a4cf1c9bb092019bb0

                  SHA1

                  6ddf3ada2903bf9c8d521a3abad300676d1e9d57

                  SHA256

                  c8e54689827b7e5b9a4d68bcb6a2cd2b4a13ca28e71608f96b2d1dbe83a6749f

                  SHA512

                  a334f9d60d8a799fce41ff6b84203b9383c72114fb08a715f95d856c189e23cf33c74ea2243cdab03352380cc6085e45e9ed23c66294c0eb2053b8c5262be9dd

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  9998e71fbce958a4cf1c9bb092019bb0

                  SHA1

                  6ddf3ada2903bf9c8d521a3abad300676d1e9d57

                  SHA256

                  c8e54689827b7e5b9a4d68bcb6a2cd2b4a13ca28e71608f96b2d1dbe83a6749f

                  SHA512

                  a334f9d60d8a799fce41ff6b84203b9383c72114fb08a715f95d856c189e23cf33c74ea2243cdab03352380cc6085e45e9ed23c66294c0eb2053b8c5262be9dd

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  c757cf6a4c8a69d4c9e8dfa453efb7ec

                  SHA1

                  7b3a785c29e88363513b9a75055666724192a018

                  SHA256

                  65c7a74449a7e29938f16c57f490c7f1763cc9619628b2d4a602c315033c56f8

                  SHA512

                  e6b862c6015ff38ddc6531875f377ddb82b5bffff7cba5b7d1d64e0055d439b7ae32c0c644aba877d6906f720aa1ade3b386aa97ecb235bd8190568a452b1f4e

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  c757cf6a4c8a69d4c9e8dfa453efb7ec

                  SHA1

                  7b3a785c29e88363513b9a75055666724192a018

                  SHA256

                  65c7a74449a7e29938f16c57f490c7f1763cc9619628b2d4a602c315033c56f8

                  SHA512

                  e6b862c6015ff38ddc6531875f377ddb82b5bffff7cba5b7d1d64e0055d439b7ae32c0c644aba877d6906f720aa1ade3b386aa97ecb235bd8190568a452b1f4e

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  c757cf6a4c8a69d4c9e8dfa453efb7ec

                  SHA1

                  7b3a785c29e88363513b9a75055666724192a018

                  SHA256

                  65c7a74449a7e29938f16c57f490c7f1763cc9619628b2d4a602c315033c56f8

                  SHA512

                  e6b862c6015ff38ddc6531875f377ddb82b5bffff7cba5b7d1d64e0055d439b7ae32c0c644aba877d6906f720aa1ade3b386aa97ecb235bd8190568a452b1f4e

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  acc4220451b4bc46989da11cf4a72de7

                  SHA1

                  9139a7a141343501d6a34968e2c5add8d2a05d53

                  SHA256

                  aaceb1f1ddc59f26541ca93ecab863bde12280c26c73bb49216618a4d125e24c

                  SHA512

                  a4360cea8ad6464b00eecaeb00c8e1bff02acfb4a26ee92b14d20b3e282cf7ee20d037cb6c9d8ecfcdda5311a292ca972e4ee9ae27fb8a2336fb86051bc06193

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  acc4220451b4bc46989da11cf4a72de7

                  SHA1

                  9139a7a141343501d6a34968e2c5add8d2a05d53

                  SHA256

                  aaceb1f1ddc59f26541ca93ecab863bde12280c26c73bb49216618a4d125e24c

                  SHA512

                  a4360cea8ad6464b00eecaeb00c8e1bff02acfb4a26ee92b14d20b3e282cf7ee20d037cb6c9d8ecfcdda5311a292ca972e4ee9ae27fb8a2336fb86051bc06193

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  acc4220451b4bc46989da11cf4a72de7

                  SHA1

                  9139a7a141343501d6a34968e2c5add8d2a05d53

                  SHA256

                  aaceb1f1ddc59f26541ca93ecab863bde12280c26c73bb49216618a4d125e24c

                  SHA512

                  a4360cea8ad6464b00eecaeb00c8e1bff02acfb4a26ee92b14d20b3e282cf7ee20d037cb6c9d8ecfcdda5311a292ca972e4ee9ae27fb8a2336fb86051bc06193

                • memory/3548-137-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/3548-168-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB