Analysis

  • max time kernel
    47s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:15

General

  • Target

    af9024b5c1a669c483761dfea6d33c21fb7fb4b80582c297fb80cc27c7cc4839.exe

  • Size

    602KB

  • MD5

    8a62d17432146f2739f4558f043bfac2

  • SHA1

    661290adc5cf61ce5011a1fd1b52a8dc99827b20

  • SHA256

    af9024b5c1a669c483761dfea6d33c21fb7fb4b80582c297fb80cc27c7cc4839

  • SHA512

    48e551a8dcef4bcf9c15ffe18613923563df89a144ef5f1716ad40cf328913970f147ae246977b2fbabed330fb83be9b1fd87003dec89a66d706805e82a9d66b

  • SSDEEP

    12288:/Iny5DYTPqAuhgKOA7l2FO2hCBpNMoCkD0kE31ImtW:nUTPqAuW4l2bwfNMoPgkOE

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\af9024b5c1a669c483761dfea6d33c21fb7fb4b80582c297fb80cc27c7cc4839.exe
    "C:\Users\Admin\AppData\Local\Temp\af9024b5c1a669c483761dfea6d33c21fb7fb4b80582c297fb80cc27c7cc4839.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:1656
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:684
      • 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:788
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1292
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1296
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1712
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:628
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1048
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1644
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1360
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1008
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:956
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:652

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0cc81b9485234038bfadb252fb49eccd

            SHA1

            8e8eb0b38caef798f1752d72035e6b08c98b8221

            SHA256

            e2997e80239dd018718057f522d510daf18d4a490b35034f5aa1ada35680806a

            SHA512

            512c5703095f3a37c1b8e0a7cfa1ac4d6c12fb59d97062554ab1897cda78f0e9ce7ce48f12dcdc7be77e48f0d732ee05973aa3b83a7c9ded2cf073931d37e198

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            27044caa659d606a768c4c572b712596

            SHA1

            6f75ca3cb7368d4d16b9485a7ae12e469b127784

            SHA256

            b906b8b0e1a4ad2212dfcd830b001ac9f25a2c2b25bc555abcea7c4744c600fd

            SHA512

            ef36ca669729485ebfb3f9fd16bb2098fa1a1ef42f67a15a57e2a9e11776da90320ec94f5ac0a6e478dc7d433d727d791c8427e13a8ba6b71af315d3eeeab682

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            978d73a1255a81ad41bd074dc581dd9b

            SHA1

            60ce88f59b2060d34f33fd1c9c6755ef265afe94

            SHA256

            53dfac53e5dde6bc3ea6c701781e0c049fab244639ebc411593be11382c1ae08

            SHA512

            f6ce9c7f71805b20c3b8ad88b5b46c212bf9b84103e453a92f1aeee82773af0f0f821d9fbf6bff12930ed89aebd8e67436f97d24fbbe2825d520421c0fb71206

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            00c28adf8187f2ba153cf974ec500aad

            SHA1

            0d77e3cc633791e49c961cca3365415538f72db7

            SHA256

            6f0f01791b75b6ba57880cd4a22b21ea3dc3603723eadac9667a2655445ef2dd

            SHA512

            f7c44144f92d8f44ba6f8d527a6ce15b3b7118e3f8b8e4a7300c5aa20217c09bd7899593e6fe4f896b40e90ed11d4c239b970fbe0263f8d00a107bba8a15645d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            00c28adf8187f2ba153cf974ec500aad

            SHA1

            0d77e3cc633791e49c961cca3365415538f72db7

            SHA256

            6f0f01791b75b6ba57880cd4a22b21ea3dc3603723eadac9667a2655445ef2dd

            SHA512

            f7c44144f92d8f44ba6f8d527a6ce15b3b7118e3f8b8e4a7300c5aa20217c09bd7899593e6fe4f896b40e90ed11d4c239b970fbe0263f8d00a107bba8a15645d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f74382d2aa37eca12b40c3f478e1683b

            SHA1

            4b6526a323c591d4e36872e05d09f540de11071f

            SHA256

            311f6072d5bcab37bd234088cb4cb3999a53c74bb076545be1a0a0341a00ed8f

            SHA512

            ffdb04f719e29adda55310e3748f52a07345241008f4d2041e9ae60e9d9348b7235bd2faf1e013219631fd09949aab7fe9aebc7e08411bee77383035c915f3dc

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f74382d2aa37eca12b40c3f478e1683b

            SHA1

            4b6526a323c591d4e36872e05d09f540de11071f

            SHA256

            311f6072d5bcab37bd234088cb4cb3999a53c74bb076545be1a0a0341a00ed8f

            SHA512

            ffdb04f719e29adda55310e3748f52a07345241008f4d2041e9ae60e9d9348b7235bd2faf1e013219631fd09949aab7fe9aebc7e08411bee77383035c915f3dc

          • \Users\Admin\AppData\Local\Temp\nst9DA9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst9DA9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst9DA9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst9DA9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst9DA9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0cc81b9485234038bfadb252fb49eccd

            SHA1

            8e8eb0b38caef798f1752d72035e6b08c98b8221

            SHA256

            e2997e80239dd018718057f522d510daf18d4a490b35034f5aa1ada35680806a

            SHA512

            512c5703095f3a37c1b8e0a7cfa1ac4d6c12fb59d97062554ab1897cda78f0e9ce7ce48f12dcdc7be77e48f0d732ee05973aa3b83a7c9ded2cf073931d37e198

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0cc81b9485234038bfadb252fb49eccd

            SHA1

            8e8eb0b38caef798f1752d72035e6b08c98b8221

            SHA256

            e2997e80239dd018718057f522d510daf18d4a490b35034f5aa1ada35680806a

            SHA512

            512c5703095f3a37c1b8e0a7cfa1ac4d6c12fb59d97062554ab1897cda78f0e9ce7ce48f12dcdc7be77e48f0d732ee05973aa3b83a7c9ded2cf073931d37e198

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0cc81b9485234038bfadb252fb49eccd

            SHA1

            8e8eb0b38caef798f1752d72035e6b08c98b8221

            SHA256

            e2997e80239dd018718057f522d510daf18d4a490b35034f5aa1ada35680806a

            SHA512

            512c5703095f3a37c1b8e0a7cfa1ac4d6c12fb59d97062554ab1897cda78f0e9ce7ce48f12dcdc7be77e48f0d732ee05973aa3b83a7c9ded2cf073931d37e198

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            27044caa659d606a768c4c572b712596

            SHA1

            6f75ca3cb7368d4d16b9485a7ae12e469b127784

            SHA256

            b906b8b0e1a4ad2212dfcd830b001ac9f25a2c2b25bc555abcea7c4744c600fd

            SHA512

            ef36ca669729485ebfb3f9fd16bb2098fa1a1ef42f67a15a57e2a9e11776da90320ec94f5ac0a6e478dc7d433d727d791c8427e13a8ba6b71af315d3eeeab682

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            27044caa659d606a768c4c572b712596

            SHA1

            6f75ca3cb7368d4d16b9485a7ae12e469b127784

            SHA256

            b906b8b0e1a4ad2212dfcd830b001ac9f25a2c2b25bc555abcea7c4744c600fd

            SHA512

            ef36ca669729485ebfb3f9fd16bb2098fa1a1ef42f67a15a57e2a9e11776da90320ec94f5ac0a6e478dc7d433d727d791c8427e13a8ba6b71af315d3eeeab682

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            978d73a1255a81ad41bd074dc581dd9b

            SHA1

            60ce88f59b2060d34f33fd1c9c6755ef265afe94

            SHA256

            53dfac53e5dde6bc3ea6c701781e0c049fab244639ebc411593be11382c1ae08

            SHA512

            f6ce9c7f71805b20c3b8ad88b5b46c212bf9b84103e453a92f1aeee82773af0f0f821d9fbf6bff12930ed89aebd8e67436f97d24fbbe2825d520421c0fb71206

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            00c28adf8187f2ba153cf974ec500aad

            SHA1

            0d77e3cc633791e49c961cca3365415538f72db7

            SHA256

            6f0f01791b75b6ba57880cd4a22b21ea3dc3603723eadac9667a2655445ef2dd

            SHA512

            f7c44144f92d8f44ba6f8d527a6ce15b3b7118e3f8b8e4a7300c5aa20217c09bd7899593e6fe4f896b40e90ed11d4c239b970fbe0263f8d00a107bba8a15645d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f74382d2aa37eca12b40c3f478e1683b

            SHA1

            4b6526a323c591d4e36872e05d09f540de11071f

            SHA256

            311f6072d5bcab37bd234088cb4cb3999a53c74bb076545be1a0a0341a00ed8f

            SHA512

            ffdb04f719e29adda55310e3748f52a07345241008f4d2041e9ae60e9d9348b7235bd2faf1e013219631fd09949aab7fe9aebc7e08411bee77383035c915f3dc

          • memory/584-59-0x0000000000000000-mapping.dmp

          • memory/628-76-0x0000000000000000-mapping.dmp

          • memory/684-58-0x0000000000000000-mapping.dmp

          • memory/788-61-0x0000000000000000-mapping.dmp

          • memory/1008-87-0x0000000000000000-mapping.dmp

          • memory/1048-80-0x0000000000000000-mapping.dmp

          • memory/1292-62-0x0000000000000000-mapping.dmp

          • memory/1296-64-0x0000000000000000-mapping.dmp

          • memory/1360-86-0x0000000000000000-mapping.dmp

          • memory/1644-81-0x0000000000000000-mapping.dmp

          • memory/1656-54-0x0000000075F61000-0x0000000075F63000-memory.dmp

            Filesize

            8KB

          • memory/1656-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1656-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1712-70-0x0000000000000000-mapping.dmp