Analysis

  • max time kernel
    195s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 23:50

General

  • Target

    f5f4a73178b147e242ca292de64777d357d685724efbb29e8b2c2754de28d218.exe

  • Size

    602KB

  • MD5

    db3d56ebfd3bb2a392bd615c073727cf

  • SHA1

    4d6f7c123d4c7570ad2e107a11427a7042f8c24b

  • SHA256

    f5f4a73178b147e242ca292de64777d357d685724efbb29e8b2c2754de28d218

  • SHA512

    a17b53aac99f1bee5362fccacd5538088a7bca3e6fceb6bf26f0da2b33d751fd88d4b2bdab485277ab067a9eea14f8b1b158552223b6c82d56a494b5ed34711c

  • SSDEEP

    12288:4Iny5DYTG2KdJE7g3oz2uxMCvAgIKUSLV1QLqPTD7MbCTmAeUtcL2cuUl/:WUTG3uYDuugtVgWT+CZDtm2cT/

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\f5f4a73178b147e242ca292de64777d357d685724efbb29e8b2c2754de28d218.exe
    "C:\Users\Admin\AppData\Local\Temp\f5f4a73178b147e242ca292de64777d357d685724efbb29e8b2c2754de28d218.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:4012
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3720
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3652
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4936
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4672
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4960
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1868
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2856
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2180
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2500
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4684
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4512
          • 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:2332
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4416

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsp3A5B.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  18ce5b9a9a85aa85e04a63fb02e24d6f

                  SHA1

                  5fe2bcc2687ca23be410d2b53b13bf0dc830b697

                  SHA256

                  d51fb6025c26159b49dcaac12ff0e5a075f69b609f1354ff7cf765dca46002dd

                  SHA512

                  29ee40574c4d9f08e0432db956f83369c3a26a694af2210d261c1830197733c64a20cc26f46f7a6e318c6ac7647a97c0b5b6effb834560515c8b8a73d6a0f5d6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  18ce5b9a9a85aa85e04a63fb02e24d6f

                  SHA1

                  5fe2bcc2687ca23be410d2b53b13bf0dc830b697

                  SHA256

                  d51fb6025c26159b49dcaac12ff0e5a075f69b609f1354ff7cf765dca46002dd

                  SHA512

                  29ee40574c4d9f08e0432db956f83369c3a26a694af2210d261c1830197733c64a20cc26f46f7a6e318c6ac7647a97c0b5b6effb834560515c8b8a73d6a0f5d6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  18ce5b9a9a85aa85e04a63fb02e24d6f

                  SHA1

                  5fe2bcc2687ca23be410d2b53b13bf0dc830b697

                  SHA256

                  d51fb6025c26159b49dcaac12ff0e5a075f69b609f1354ff7cf765dca46002dd

                  SHA512

                  29ee40574c4d9f08e0432db956f83369c3a26a694af2210d261c1830197733c64a20cc26f46f7a6e318c6ac7647a97c0b5b6effb834560515c8b8a73d6a0f5d6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  18ce5b9a9a85aa85e04a63fb02e24d6f

                  SHA1

                  5fe2bcc2687ca23be410d2b53b13bf0dc830b697

                  SHA256

                  d51fb6025c26159b49dcaac12ff0e5a075f69b609f1354ff7cf765dca46002dd

                  SHA512

                  29ee40574c4d9f08e0432db956f83369c3a26a694af2210d261c1830197733c64a20cc26f46f7a6e318c6ac7647a97c0b5b6effb834560515c8b8a73d6a0f5d6

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  ae34141dfc9b332c9b742e97d8519b0e

                  SHA1

                  0ed5b6e3b080f318a080b6005d7c9840e1f844d3

                  SHA256

                  f44929d66443d430a2b7aa5c4d39dbc7948c40657edb5410904c2479d62a9171

                  SHA512

                  e5d4bfdaf274736617c65ea8dfa2d436efd9061208bbb809fdd40dd851a3270f9ef00110232b72d8d3f562120047389339aceb0269744da7106ad7c09c6161f6

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  ae34141dfc9b332c9b742e97d8519b0e

                  SHA1

                  0ed5b6e3b080f318a080b6005d7c9840e1f844d3

                  SHA256

                  f44929d66443d430a2b7aa5c4d39dbc7948c40657edb5410904c2479d62a9171

                  SHA512

                  e5d4bfdaf274736617c65ea8dfa2d436efd9061208bbb809fdd40dd851a3270f9ef00110232b72d8d3f562120047389339aceb0269744da7106ad7c09c6161f6

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  ae34141dfc9b332c9b742e97d8519b0e

                  SHA1

                  0ed5b6e3b080f318a080b6005d7c9840e1f844d3

                  SHA256

                  f44929d66443d430a2b7aa5c4d39dbc7948c40657edb5410904c2479d62a9171

                  SHA512

                  e5d4bfdaf274736617c65ea8dfa2d436efd9061208bbb809fdd40dd851a3270f9ef00110232b72d8d3f562120047389339aceb0269744da7106ad7c09c6161f6

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  2a9f20524587adadb9584044d56a79e8

                  SHA1

                  9c1033d2fc7189e2e98ff3e27dda15b97e9ff472

                  SHA256

                  23d7e7cbb389d0d8afdda735b6d5dafa261f64b1070d5b90683861d5fffa10d6

                  SHA512

                  a5ec4fa7fd9784c941c51a5c8a5c009beb000d0d646abaf341edb56ed7b038e437ff2c31597b52b82800b871b5f7e95a27b9ae875ff325a2a46252b0799d577d

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  2a9f20524587adadb9584044d56a79e8

                  SHA1

                  9c1033d2fc7189e2e98ff3e27dda15b97e9ff472

                  SHA256

                  23d7e7cbb389d0d8afdda735b6d5dafa261f64b1070d5b90683861d5fffa10d6

                  SHA512

                  a5ec4fa7fd9784c941c51a5c8a5c009beb000d0d646abaf341edb56ed7b038e437ff2c31597b52b82800b871b5f7e95a27b9ae875ff325a2a46252b0799d577d

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e8fabaf97afc2e8bb6655099068f49c1

                  SHA1

                  bc90654e492178d74e906063cbe70b90503845f4

                  SHA256

                  84a6326f90d4819aea2106f8024676b9c3fd5f7cb60ea8f61d7adf3deaae8f42

                  SHA512

                  e9ca18141d6e01fafc37e037ee129806fb270ac27728449a510ae15a9929b01419137197b0292de4f77e25c7634f455e6bf04c0434fbdbd9e5175062a199939c

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e8fabaf97afc2e8bb6655099068f49c1

                  SHA1

                  bc90654e492178d74e906063cbe70b90503845f4

                  SHA256

                  84a6326f90d4819aea2106f8024676b9c3fd5f7cb60ea8f61d7adf3deaae8f42

                  SHA512

                  e9ca18141d6e01fafc37e037ee129806fb270ac27728449a510ae15a9929b01419137197b0292de4f77e25c7634f455e6bf04c0434fbdbd9e5175062a199939c

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  e8fabaf97afc2e8bb6655099068f49c1

                  SHA1

                  bc90654e492178d74e906063cbe70b90503845f4

                  SHA256

                  84a6326f90d4819aea2106f8024676b9c3fd5f7cb60ea8f61d7adf3deaae8f42

                  SHA512

                  e9ca18141d6e01fafc37e037ee129806fb270ac27728449a510ae15a9929b01419137197b0292de4f77e25c7634f455e6bf04c0434fbdbd9e5175062a199939c

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  67237c7b08bb9e89f152e1b5eec015ff

                  SHA1

                  7d666ab331d373e1363e919469c5fdbc541cf839

                  SHA256

                  4fb6112b4aabe9f2b8a28ffec74f35962b3966ff7b54490746602f03d703c9d5

                  SHA512

                  970d03a6afc28882a2f32efa6c6dee5a22501356fb2ba2cc608b32c612e6e9cdf6992280a3996e7c7cea28c76a94fdd5729e2122f6de819e1008c1892bc92f4d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  67237c7b08bb9e89f152e1b5eec015ff

                  SHA1

                  7d666ab331d373e1363e919469c5fdbc541cf839

                  SHA256

                  4fb6112b4aabe9f2b8a28ffec74f35962b3966ff7b54490746602f03d703c9d5

                  SHA512

                  970d03a6afc28882a2f32efa6c6dee5a22501356fb2ba2cc608b32c612e6e9cdf6992280a3996e7c7cea28c76a94fdd5729e2122f6de819e1008c1892bc92f4d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  67237c7b08bb9e89f152e1b5eec015ff

                  SHA1

                  7d666ab331d373e1363e919469c5fdbc541cf839

                  SHA256

                  4fb6112b4aabe9f2b8a28ffec74f35962b3966ff7b54490746602f03d703c9d5

                  SHA512

                  970d03a6afc28882a2f32efa6c6dee5a22501356fb2ba2cc608b32c612e6e9cdf6992280a3996e7c7cea28c76a94fdd5729e2122f6de819e1008c1892bc92f4d

                • memory/4012-142-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/4012-136-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/4012-169-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB