Analysis

  • max time kernel
    65s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 14:07

General

  • Target

    9fd62468de281e6731a490b2b0217ee640ab6698033d42e0ae0574484a01208c.exe

  • Size

    562KB

  • MD5

    46abbb078a4823970cd5841bbaf2e4ef

  • SHA1

    a0ac1677ceb1d89a7765082736bccf3f8d99bed0

  • SHA256

    9fd62468de281e6731a490b2b0217ee640ab6698033d42e0ae0574484a01208c

  • SHA512

    036028d21ce0864fc838321cd35a8d3c4d86d8e766850bc8507d6174bb6505c47bd4a5344bf1b07aefa1745e93d01d89973eea5ae9fbb4ae03007fcc8e760f5b

  • SSDEEP

    12288:5PRYzJbf4rZ3FuXgB6AHvl38ztskdz7Aa55S6ecml4L8A8A:4z9fKU8vl4hz+kmuLyA

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\9fd62468de281e6731a490b2b0217ee640ab6698033d42e0ae0574484a01208c.exe
    "C:\Users\Admin\AppData\Local\Temp\9fd62468de281e6731a490b2b0217ee640ab6698033d42e0ae0574484a01208c.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:944
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1396
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:468
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1904
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1080
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1648
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1104
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:828
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1920
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:360
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1832
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1512

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  78c15bea480c32dcc14eafa8f4441106

                  SHA1

                  3fcdf06412c854a2179cee103220ac6a21a77009

                  SHA256

                  f17bdbc60f88bf5ee1d698e9b4034936d7ad2fce22ac9130b0cc8d8c164c46f7

                  SHA512

                  9e079452e4ea8c4f1e00e226eadc0143f42288cb21e6c653ac623633696ad3769895424ce6338e977a5efefa96fc9288d2b1974d7d5473159ff2cff5170eb4b4

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  077e0abfa5992dc09f0d9954ad7ec2f8

                  SHA1

                  fa85d588f799d603e13f9a51bf3a715af9d38959

                  SHA256

                  7ec144735c431ee14b12aa30fe9a55a5046fae83162a2380a521d950368cfc40

                  SHA512

                  8f4210c0eb9a7cb00045a2e190aaeffc61b843770a74c8886b3f0f1fecc7a35716fd3d494af38e39911823b97b67ba39953bd86b8f561d8df15b9a1e42bc9df8

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  8c22a6dfda1fdbc7db537244e64758a3

                  SHA1

                  098310ae358205895639877739614cadb6b3c24a

                  SHA256

                  2199ab1808603cb50f2ff50a27c69f8a0f8e4c1900f3b5006cfd6f514cd45f15

                  SHA512

                  f14e4669378f7c757bee13f622c73588d0ec68a3438f21a8bf7a984002b51239deacf927da05b38e40fa16ccc87beaefead0a929c09c6cd099d1b91fbea05d7a

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  9e82d22a5b1e81db4ee3a129f971a5d2

                  SHA1

                  9cb7d0d450f41ff6476b28d6fc2d62e3a9b09ab9

                  SHA256

                  f7e51f679ea9cd4be589a83db64f7ff74150d464f2784c712be90a476cac5646

                  SHA512

                  9ea0b0d87dd8d222b5baac115dde680364c8a2796809c91e38bf07a81b1fb294385611d4433081ea38cad0985f40a1d2af261cf481e8eb6c6bf647b5083fec1e

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  9e82d22a5b1e81db4ee3a129f971a5d2

                  SHA1

                  9cb7d0d450f41ff6476b28d6fc2d62e3a9b09ab9

                  SHA256

                  f7e51f679ea9cd4be589a83db64f7ff74150d464f2784c712be90a476cac5646

                  SHA512

                  9ea0b0d87dd8d222b5baac115dde680364c8a2796809c91e38bf07a81b1fb294385611d4433081ea38cad0985f40a1d2af261cf481e8eb6c6bf647b5083fec1e

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  5d2abef408f32cfb361e5b756af7c8fa

                  SHA1

                  cd9dcd7e84f948a88c60b0d2f7b40bfcbdd0a048

                  SHA256

                  93d795d388fb8dd35f0426624dc97df03ed06cc08e76c777b8bebb380041cfaf

                  SHA512

                  cfec07dc58ef095352cd83a3b56473e9a6d162913608d427050cf5f16f98606da374f3c24b19b2676485f7053dfa3e94f046c4756328c7aeae3cfd8fb47b80a3

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  5d2abef408f32cfb361e5b756af7c8fa

                  SHA1

                  cd9dcd7e84f948a88c60b0d2f7b40bfcbdd0a048

                  SHA256

                  93d795d388fb8dd35f0426624dc97df03ed06cc08e76c777b8bebb380041cfaf

                  SHA512

                  cfec07dc58ef095352cd83a3b56473e9a6d162913608d427050cf5f16f98606da374f3c24b19b2676485f7053dfa3e94f046c4756328c7aeae3cfd8fb47b80a3

                • \Users\Admin\AppData\Local\Temp\nso5026.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nso5026.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso5026.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso5026.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nso5026.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  78c15bea480c32dcc14eafa8f4441106

                  SHA1

                  3fcdf06412c854a2179cee103220ac6a21a77009

                  SHA256

                  f17bdbc60f88bf5ee1d698e9b4034936d7ad2fce22ac9130b0cc8d8c164c46f7

                  SHA512

                  9e079452e4ea8c4f1e00e226eadc0143f42288cb21e6c653ac623633696ad3769895424ce6338e977a5efefa96fc9288d2b1974d7d5473159ff2cff5170eb4b4

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  78c15bea480c32dcc14eafa8f4441106

                  SHA1

                  3fcdf06412c854a2179cee103220ac6a21a77009

                  SHA256

                  f17bdbc60f88bf5ee1d698e9b4034936d7ad2fce22ac9130b0cc8d8c164c46f7

                  SHA512

                  9e079452e4ea8c4f1e00e226eadc0143f42288cb21e6c653ac623633696ad3769895424ce6338e977a5efefa96fc9288d2b1974d7d5473159ff2cff5170eb4b4

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  78c15bea480c32dcc14eafa8f4441106

                  SHA1

                  3fcdf06412c854a2179cee103220ac6a21a77009

                  SHA256

                  f17bdbc60f88bf5ee1d698e9b4034936d7ad2fce22ac9130b0cc8d8c164c46f7

                  SHA512

                  9e079452e4ea8c4f1e00e226eadc0143f42288cb21e6c653ac623633696ad3769895424ce6338e977a5efefa96fc9288d2b1974d7d5473159ff2cff5170eb4b4

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  077e0abfa5992dc09f0d9954ad7ec2f8

                  SHA1

                  fa85d588f799d603e13f9a51bf3a715af9d38959

                  SHA256

                  7ec144735c431ee14b12aa30fe9a55a5046fae83162a2380a521d950368cfc40

                  SHA512

                  8f4210c0eb9a7cb00045a2e190aaeffc61b843770a74c8886b3f0f1fecc7a35716fd3d494af38e39911823b97b67ba39953bd86b8f561d8df15b9a1e42bc9df8

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  077e0abfa5992dc09f0d9954ad7ec2f8

                  SHA1

                  fa85d588f799d603e13f9a51bf3a715af9d38959

                  SHA256

                  7ec144735c431ee14b12aa30fe9a55a5046fae83162a2380a521d950368cfc40

                  SHA512

                  8f4210c0eb9a7cb00045a2e190aaeffc61b843770a74c8886b3f0f1fecc7a35716fd3d494af38e39911823b97b67ba39953bd86b8f561d8df15b9a1e42bc9df8

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  8c22a6dfda1fdbc7db537244e64758a3

                  SHA1

                  098310ae358205895639877739614cadb6b3c24a

                  SHA256

                  2199ab1808603cb50f2ff50a27c69f8a0f8e4c1900f3b5006cfd6f514cd45f15

                  SHA512

                  f14e4669378f7c757bee13f622c73588d0ec68a3438f21a8bf7a984002b51239deacf927da05b38e40fa16ccc87beaefead0a929c09c6cd099d1b91fbea05d7a

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  9e82d22a5b1e81db4ee3a129f971a5d2

                  SHA1

                  9cb7d0d450f41ff6476b28d6fc2d62e3a9b09ab9

                  SHA256

                  f7e51f679ea9cd4be589a83db64f7ff74150d464f2784c712be90a476cac5646

                  SHA512

                  9ea0b0d87dd8d222b5baac115dde680364c8a2796809c91e38bf07a81b1fb294385611d4433081ea38cad0985f40a1d2af261cf481e8eb6c6bf647b5083fec1e

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  5d2abef408f32cfb361e5b756af7c8fa

                  SHA1

                  cd9dcd7e84f948a88c60b0d2f7b40bfcbdd0a048

                  SHA256

                  93d795d388fb8dd35f0426624dc97df03ed06cc08e76c777b8bebb380041cfaf

                  SHA512

                  cfec07dc58ef095352cd83a3b56473e9a6d162913608d427050cf5f16f98606da374f3c24b19b2676485f7053dfa3e94f046c4756328c7aeae3cfd8fb47b80a3

                • memory/944-62-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/944-69-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/944-54-0x0000000075B61000-0x0000000075B63000-memory.dmp

                  Filesize

                  8KB

                • memory/944-91-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB