Analysis

  • max time kernel
    43s
  • 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 10:51

General

  • Target

    e2d588999c6d42caba8eeb672a76266a700a420454ffe1e4a4acb676fcc6efef.exe

  • Size

    445KB

  • MD5

    da2b7d047c0d97c253178196c37cd3d2

  • SHA1

    894e560c2309ce5a11e8c30d5cbadac56ac774b7

  • SHA256

    e2d588999c6d42caba8eeb672a76266a700a420454ffe1e4a4acb676fcc6efef

  • SHA512

    3bc42e04e2be5532bfa09bd90beb3876ba751c2f114db4ee93e677a3d0aec6cf06532f6c6526b5d0a424f72efbbe5749fd4a45d28133250bf419d69acd50358c

  • SSDEEP

    6144:XzfsrOq91y+WEQ/3Ba/vpU1PEWnrWyb5lwmkA+Ny8OPobKRkKH9a4QpDr3tCYO9V:QH1EERC1P3ZbbUAAysKda4ytCYOKzrW

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\e2d588999c6d42caba8eeb672a76266a700a420454ffe1e4a4acb676fcc6efef.exe
    "C:\Users\Admin\AppData\Local\Temp\e2d588999c6d42caba8eeb672a76266a700a420454ffe1e4a4acb676fcc6efef.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:956
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:288
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:516
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:572
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1476
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:752
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1760
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:964
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2024
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1932
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2012
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1336

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            106KB

            MD5

            c1c65221fecbb2dba46c0acac5d54af3

            SHA1

            79a5f51c74b522d98444012a843039180ab26650

            SHA256

            1961b4947b6001de5a12202674ab885ec95016b970d2d46d59a173814bb41ae0

            SHA512

            1d695945869cca6515af086a8d90d57283a1ff84477a85b9f770fd1fd04aa624c89b2ab6c5363de7f9da1259ff53a3b6667a82c5d58ad0efd66da8c7a0ff1a43

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

            241KB

            MD5

            a306169ae0876116c610fcae020a2855

            SHA1

            3b43bfe2aa19d7c137ab1f944c9885d363b1a9d1

            SHA256

            86fdc99110edd827d79ca2179b457bfc0684ed28e5a650b302a1ee9571e9eeeb

            SHA512

            0bea5697902d1e3b348eb94edbdc6f13bfd21b2d4885c4e0e9960aa5b667bcce605d35e331d8054129fff11b7ab0aec8e3b917b7bf9eb558c0605c1d7c60b730

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

            108KB

            MD5

            75016bdeb3ee7c4215effbe41ef351ec

            SHA1

            c56b31a5ec72cf8e2b286eea63cdb130edc32766

            SHA256

            587d8f1dbae02de855353f0eab3859a1be2ecf544b37bf4c9a06b9873ba6eba5

            SHA512

            c1abaf7e1244f526ea78f9c696fcdc65ad9c414e762a0609f740fe791721ef030fda353b13b620d826e2b2162b06f3346648239b780a0c7e938b2fbfb799d2b3

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

            176KB

            MD5

            831266c5736e09452fdb5a3ac6f035e4

            SHA1

            04432dfd2d915c457faa5de6533925193ec350fa

            SHA256

            b030ceb4c8054843d6e5ea2ac389afe7cf5412e12cfbc335f4df93f9def8925d

            SHA512

            edf05eee8b077bf5c4a87e90c91b9d6db875c461a43eabef367bcddaac9363aa83571484f15cc7075ed656d1935a592e013ff6f980d4aa3559b905fc675435fa

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

            176KB

            MD5

            831266c5736e09452fdb5a3ac6f035e4

            SHA1

            04432dfd2d915c457faa5de6533925193ec350fa

            SHA256

            b030ceb4c8054843d6e5ea2ac389afe7cf5412e12cfbc335f4df93f9def8925d

            SHA512

            edf05eee8b077bf5c4a87e90c91b9d6db875c461a43eabef367bcddaac9363aa83571484f15cc7075ed656d1935a592e013ff6f980d4aa3559b905fc675435fa

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

            158KB

            MD5

            287b31b29bb667b26adddac24f65b3a3

            SHA1

            717f67dbdaca28edd09924715e644a5ea0850212

            SHA256

            f9e31dd8e94c637c1d369ee0b9ea29b77e275b66e176a3f3832b9ee7b23d9953

            SHA512

            1a6dcaa9c6182ed6e3fe6d292cd7469f80dfda7bf5440511d33ff123955c58b9ded4f64c3bb84caae2f3c124e450f5db11053d999fbccf2e0621ee303d3019cc

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

            158KB

            MD5

            287b31b29bb667b26adddac24f65b3a3

            SHA1

            717f67dbdaca28edd09924715e644a5ea0850212

            SHA256

            f9e31dd8e94c637c1d369ee0b9ea29b77e275b66e176a3f3832b9ee7b23d9953

            SHA512

            1a6dcaa9c6182ed6e3fe6d292cd7469f80dfda7bf5440511d33ff123955c58b9ded4f64c3bb84caae2f3c124e450f5db11053d999fbccf2e0621ee303d3019cc

          • \Users\Admin\AppData\Local\Temp\nse9E84.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nse9E84.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9E84.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9E84.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9E84.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c1c65221fecbb2dba46c0acac5d54af3

            SHA1

            79a5f51c74b522d98444012a843039180ab26650

            SHA256

            1961b4947b6001de5a12202674ab885ec95016b970d2d46d59a173814bb41ae0

            SHA512

            1d695945869cca6515af086a8d90d57283a1ff84477a85b9f770fd1fd04aa624c89b2ab6c5363de7f9da1259ff53a3b6667a82c5d58ad0efd66da8c7a0ff1a43

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c1c65221fecbb2dba46c0acac5d54af3

            SHA1

            79a5f51c74b522d98444012a843039180ab26650

            SHA256

            1961b4947b6001de5a12202674ab885ec95016b970d2d46d59a173814bb41ae0

            SHA512

            1d695945869cca6515af086a8d90d57283a1ff84477a85b9f770fd1fd04aa624c89b2ab6c5363de7f9da1259ff53a3b6667a82c5d58ad0efd66da8c7a0ff1a43

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            c1c65221fecbb2dba46c0acac5d54af3

            SHA1

            79a5f51c74b522d98444012a843039180ab26650

            SHA256

            1961b4947b6001de5a12202674ab885ec95016b970d2d46d59a173814bb41ae0

            SHA512

            1d695945869cca6515af086a8d90d57283a1ff84477a85b9f770fd1fd04aa624c89b2ab6c5363de7f9da1259ff53a3b6667a82c5d58ad0efd66da8c7a0ff1a43

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            a306169ae0876116c610fcae020a2855

            SHA1

            3b43bfe2aa19d7c137ab1f944c9885d363b1a9d1

            SHA256

            86fdc99110edd827d79ca2179b457bfc0684ed28e5a650b302a1ee9571e9eeeb

            SHA512

            0bea5697902d1e3b348eb94edbdc6f13bfd21b2d4885c4e0e9960aa5b667bcce605d35e331d8054129fff11b7ab0aec8e3b917b7bf9eb558c0605c1d7c60b730

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            a306169ae0876116c610fcae020a2855

            SHA1

            3b43bfe2aa19d7c137ab1f944c9885d363b1a9d1

            SHA256

            86fdc99110edd827d79ca2179b457bfc0684ed28e5a650b302a1ee9571e9eeeb

            SHA512

            0bea5697902d1e3b348eb94edbdc6f13bfd21b2d4885c4e0e9960aa5b667bcce605d35e331d8054129fff11b7ab0aec8e3b917b7bf9eb558c0605c1d7c60b730

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            75016bdeb3ee7c4215effbe41ef351ec

            SHA1

            c56b31a5ec72cf8e2b286eea63cdb130edc32766

            SHA256

            587d8f1dbae02de855353f0eab3859a1be2ecf544b37bf4c9a06b9873ba6eba5

            SHA512

            c1abaf7e1244f526ea78f9c696fcdc65ad9c414e762a0609f740fe791721ef030fda353b13b620d826e2b2162b06f3346648239b780a0c7e938b2fbfb799d2b3

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            831266c5736e09452fdb5a3ac6f035e4

            SHA1

            04432dfd2d915c457faa5de6533925193ec350fa

            SHA256

            b030ceb4c8054843d6e5ea2ac389afe7cf5412e12cfbc335f4df93f9def8925d

            SHA512

            edf05eee8b077bf5c4a87e90c91b9d6db875c461a43eabef367bcddaac9363aa83571484f15cc7075ed656d1935a592e013ff6f980d4aa3559b905fc675435fa

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            287b31b29bb667b26adddac24f65b3a3

            SHA1

            717f67dbdaca28edd09924715e644a5ea0850212

            SHA256

            f9e31dd8e94c637c1d369ee0b9ea29b77e275b66e176a3f3832b9ee7b23d9953

            SHA512

            1a6dcaa9c6182ed6e3fe6d292cd7469f80dfda7bf5440511d33ff123955c58b9ded4f64c3bb84caae2f3c124e450f5db11053d999fbccf2e0621ee303d3019cc

          • memory/288-57-0x0000000000000000-mapping.dmp
          • memory/516-58-0x0000000000000000-mapping.dmp
          • memory/572-61-0x0000000000000000-mapping.dmp
          • memory/580-60-0x0000000000000000-mapping.dmp
          • memory/752-69-0x0000000000000000-mapping.dmp
          • memory/956-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
            Filesize

            8KB

          • memory/964-79-0x0000000000000000-mapping.dmp
          • memory/1476-63-0x0000000000000000-mapping.dmp
          • memory/1760-75-0x0000000000000000-mapping.dmp
          • memory/1820-85-0x0000000000000000-mapping.dmp
          • memory/1932-86-0x0000000000000000-mapping.dmp
          • memory/2024-80-0x0000000000000000-mapping.dmp