Analysis

  • max time kernel
    44s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 00:38

General

  • Target

    12806ab9fcc01de964b342adaec36ec072d0b84b9552865dd4ffdaa5c4d1b432.exe

  • Size

    832KB

  • MD5

    daf835f67daae088cfb0d6428343640b

  • SHA1

    9f102918c41122ff3c5adc8c77d8eb3abe44dd81

  • SHA256

    12806ab9fcc01de964b342adaec36ec072d0b84b9552865dd4ffdaa5c4d1b432

  • SHA512

    40ab8c197a0d187286744109e26c75558bc30418614e0623a9c6ae66f9a03652187fb89a1c394c99259fc29ed8a80a22fa90e54768262fae5d0c69c0af7aa697

  • SSDEEP

    24576:/rfGR2wDeRMTz2vTnlv1cdjWdJEnZL98t4+yH1x9xfon:/YYRMTOTnD1rEnZLmt4j1xIn

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\12806ab9fcc01de964b342adaec36ec072d0b84b9552865dd4ffdaa5c4d1b432.exe
    "C:\Users\Admin\AppData\Local\Temp\12806ab9fcc01de964b342adaec36ec072d0b84b9552865dd4ffdaa5c4d1b432.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:1700
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:584
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:336
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1192
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1732
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1060
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1472
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1876
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1948
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:764
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1772
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:532

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  94d45326feea4e32ac216f7a4e1ad323

                  SHA1

                  be54e0b08007104bbe309b0d0d5c225732850173

                  SHA256

                  57a7ca884205db08b70916ed7963df426b77cfc15fb1c646c30498be4db0f408

                  SHA512

                  55190631def963cc19de8bce5abef7cd3ecd67167da82aab965a81a9e768ab3adc2ad5d12a2d4478671afcdade9592d71701bdba53f2fbe7964de7612531e4c8

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  428KB

                  MD5

                  091e8037fc5ff69df86a81146ddfe949

                  SHA1

                  0a86dcbb85fa6ec739f3c58236dfed08b50960fb

                  SHA256

                  dbdb4fd5fd5e5e3310865109bd8abd13423cb5a8343042b2ef9ec4f08c356811

                  SHA512

                  1559e1fd85e0dd00e9f9026673cd061e1708909dc4d07ae61b1a9150997d7aa582b91fc6b46e54deeb3f28215e02fa182b2b5c61b395803796431b96b428cc96

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  137KB

                  MD5

                  64851970d2e595422057d88281c95a90

                  SHA1

                  a06066ea32401ce72c3074cd29c2f1d84129db06

                  SHA256

                  186db0f73ad08f3472a38ba6724d170f3474296e9faf813ed932842d42ba01ae

                  SHA512

                  319d864cb494f883609ac16e6f27eb0f9a98106fa3746be0fd1f17b7678201f1e3e17c758fc866d6de4bfa10a122b784e8c0e7eabe3225f888779942f822de74

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  331KB

                  MD5

                  7b7f538db19805809169994e7b5f7c35

                  SHA1

                  47d52eedd53aee5d2057d568296cf7ef057eeed1

                  SHA256

                  74ad74279e176033028e27e94bf7b1e75e05c51af35563ad7c943b7ba79af8f3

                  SHA512

                  eb67c5bb140a9f19a000c5831bc2ac0591c98b3bfcbfa3a75ec3fe56b4d12052b0c9c7516ed4c3372e2b238baf71640fb8d4206eff4ed14fa4cffb797928388d

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  331KB

                  MD5

                  7b7f538db19805809169994e7b5f7c35

                  SHA1

                  47d52eedd53aee5d2057d568296cf7ef057eeed1

                  SHA256

                  74ad74279e176033028e27e94bf7b1e75e05c51af35563ad7c943b7ba79af8f3

                  SHA512

                  eb67c5bb140a9f19a000c5831bc2ac0591c98b3bfcbfa3a75ec3fe56b4d12052b0c9c7516ed4c3372e2b238baf71640fb8d4206eff4ed14fa4cffb797928388d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  186KB

                  MD5

                  442b11ff8cfb9193c84f09fba3dfd9fe

                  SHA1

                  277a28b5adee790b4f9291775d3376da31f42c3e

                  SHA256

                  434a7f5c3e0c43aaf2198d7bc8ff697e497c45f9e7491def69c702b31a679c7d

                  SHA512

                  c816b548899a635bd01cb193cf166591307ad6640d238628bbb09afd206cf707f01d73fd9ce4b1c5ae8867ec6b151fc0e4dd4061f903128487179fd0cc8cefa0

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  186KB

                  MD5

                  442b11ff8cfb9193c84f09fba3dfd9fe

                  SHA1

                  277a28b5adee790b4f9291775d3376da31f42c3e

                  SHA256

                  434a7f5c3e0c43aaf2198d7bc8ff697e497c45f9e7491def69c702b31a679c7d

                  SHA512

                  c816b548899a635bd01cb193cf166591307ad6640d238628bbb09afd206cf707f01d73fd9ce4b1c5ae8867ec6b151fc0e4dd4061f903128487179fd0cc8cefa0

                • \Users\Admin\AppData\Local\Temp\nst3575.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nst3575.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nst3575.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nst3575.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nst3575.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  94d45326feea4e32ac216f7a4e1ad323

                  SHA1

                  be54e0b08007104bbe309b0d0d5c225732850173

                  SHA256

                  57a7ca884205db08b70916ed7963df426b77cfc15fb1c646c30498be4db0f408

                  SHA512

                  55190631def963cc19de8bce5abef7cd3ecd67167da82aab965a81a9e768ab3adc2ad5d12a2d4478671afcdade9592d71701bdba53f2fbe7964de7612531e4c8

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  94d45326feea4e32ac216f7a4e1ad323

                  SHA1

                  be54e0b08007104bbe309b0d0d5c225732850173

                  SHA256

                  57a7ca884205db08b70916ed7963df426b77cfc15fb1c646c30498be4db0f408

                  SHA512

                  55190631def963cc19de8bce5abef7cd3ecd67167da82aab965a81a9e768ab3adc2ad5d12a2d4478671afcdade9592d71701bdba53f2fbe7964de7612531e4c8

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  94d45326feea4e32ac216f7a4e1ad323

                  SHA1

                  be54e0b08007104bbe309b0d0d5c225732850173

                  SHA256

                  57a7ca884205db08b70916ed7963df426b77cfc15fb1c646c30498be4db0f408

                  SHA512

                  55190631def963cc19de8bce5abef7cd3ecd67167da82aab965a81a9e768ab3adc2ad5d12a2d4478671afcdade9592d71701bdba53f2fbe7964de7612531e4c8

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  428KB

                  MD5

                  091e8037fc5ff69df86a81146ddfe949

                  SHA1

                  0a86dcbb85fa6ec739f3c58236dfed08b50960fb

                  SHA256

                  dbdb4fd5fd5e5e3310865109bd8abd13423cb5a8343042b2ef9ec4f08c356811

                  SHA512

                  1559e1fd85e0dd00e9f9026673cd061e1708909dc4d07ae61b1a9150997d7aa582b91fc6b46e54deeb3f28215e02fa182b2b5c61b395803796431b96b428cc96

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  428KB

                  MD5

                  091e8037fc5ff69df86a81146ddfe949

                  SHA1

                  0a86dcbb85fa6ec739f3c58236dfed08b50960fb

                  SHA256

                  dbdb4fd5fd5e5e3310865109bd8abd13423cb5a8343042b2ef9ec4f08c356811

                  SHA512

                  1559e1fd85e0dd00e9f9026673cd061e1708909dc4d07ae61b1a9150997d7aa582b91fc6b46e54deeb3f28215e02fa182b2b5c61b395803796431b96b428cc96

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  137KB

                  MD5

                  64851970d2e595422057d88281c95a90

                  SHA1

                  a06066ea32401ce72c3074cd29c2f1d84129db06

                  SHA256

                  186db0f73ad08f3472a38ba6724d170f3474296e9faf813ed932842d42ba01ae

                  SHA512

                  319d864cb494f883609ac16e6f27eb0f9a98106fa3746be0fd1f17b7678201f1e3e17c758fc866d6de4bfa10a122b784e8c0e7eabe3225f888779942f822de74

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  331KB

                  MD5

                  7b7f538db19805809169994e7b5f7c35

                  SHA1

                  47d52eedd53aee5d2057d568296cf7ef057eeed1

                  SHA256

                  74ad74279e176033028e27e94bf7b1e75e05c51af35563ad7c943b7ba79af8f3

                  SHA512

                  eb67c5bb140a9f19a000c5831bc2ac0591c98b3bfcbfa3a75ec3fe56b4d12052b0c9c7516ed4c3372e2b238baf71640fb8d4206eff4ed14fa4cffb797928388d

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  186KB

                  MD5

                  442b11ff8cfb9193c84f09fba3dfd9fe

                  SHA1

                  277a28b5adee790b4f9291775d3376da31f42c3e

                  SHA256

                  434a7f5c3e0c43aaf2198d7bc8ff697e497c45f9e7491def69c702b31a679c7d

                  SHA512

                  c816b548899a635bd01cb193cf166591307ad6640d238628bbb09afd206cf707f01d73fd9ce4b1c5ae8867ec6b151fc0e4dd4061f903128487179fd0cc8cefa0

                • memory/1700-59-0x0000000000320000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.6MB

                • memory/1700-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

                  Filesize

                  8KB

                • memory/1700-90-0x0000000000320000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.6MB