Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 14:23

General

  • Target

    7e2c4fde47d9eda060cf431ae4123be4900b8f76617732a6196668f9fec600b7.exe

  • Size

    563KB

  • MD5

    eea3a5cb9f4f9c507ef3ea1b07531421

  • SHA1

    4245d2829b2f707d1905002d91d7d96bd9244c75

  • SHA256

    7e2c4fde47d9eda060cf431ae4123be4900b8f76617732a6196668f9fec600b7

  • SHA512

    7aba72c8ae517deca7e50c0e48508b02151991918044e081d01de37acede66c7da87ac93dd29631d1cd68945ef8c55197c0037830a5e902cd0563fa5c2d2c255

  • SSDEEP

    12288:YPRYzbbf+hnkpYrNkWCknHbO/x4HlCoDhtbxKAap:Rz3ffCBkZknHgmHLHYz

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\7e2c4fde47d9eda060cf431ae4123be4900b8f76617732a6196668f9fec600b7.exe
    "C:\Users\Admin\AppData\Local\Temp\7e2c4fde47d9eda060cf431ae4123be4900b8f76617732a6196668f9fec600b7.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:1972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1532
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1212
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1516
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:524
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1068
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1712
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:268
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:804
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1992
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:112
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1112

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d5228a55fd11931e4fae2afc16260ac1

                  SHA1

                  a3a9ab09fe6b461629a5ffd56787eac48b2c6257

                  SHA256

                  bbd1028e742ee8531ff05f9d48a363970abeb04aaadcbf45dafdeeeb7c206fc5

                  SHA512

                  303972f46a17e148a026094a0fe5754caa8c023151ed95e1ac73403e26bdd2c3b664b50f2ce83a372b6af1686088d32de1ad1b0851ac15d8d6a84c8e53b93c4b

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  0b0821e71e4fa18595270070f93f5fd8

                  SHA1

                  6def4cc7582eae9d8ed88a5c30de8958726fb25e

                  SHA256

                  41e5d95670146b96443c32b121a854fe1fe5adc9c1da308ec62769a78f5cdc0c

                  SHA512

                  9780709eb1810368e6cb7724112b82840cde3b007c62e3cb69cd39a38bdf83a7105f64f71a5846fa7d3bb6aba85d9cf710e29bda14e4c9115620162e333d9fa6

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  8b0ea2875a0c4cf97a9759bee4e152ef

                  SHA1

                  979195c835fd8bb575d643ed830117bd2b28d9f4

                  SHA256

                  a1bc7350f8b2e477063072d7f7b77f4be482a59ed5fd8b66ccfa1402826a8ad8

                  SHA512

                  a5536f7d7d9f2b4336342e92f415f40c22416f3e486c97811e5df3664051b48b552e3412e11f0097f71447a9b93b5ed4f33920fc603f79a835e27c2d7ac603c9

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  4601960072941e27424b963f8bd7b03a

                  SHA1

                  85c3e1144f85c94e5e699901e15146c5807f6314

                  SHA256

                  37498efe97e31fa1cd2a303938cd4e91498a76b44aab8f021c07b8d81408a93c

                  SHA512

                  c8bdfbc1d07cac02c01fb2b4faf2be49a280cebddab2fc2437907b533837088ec42fcdc7b03e6916767ecf002f1d1a0fbe951df537e217be10fbf40c795cb2e1

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  4601960072941e27424b963f8bd7b03a

                  SHA1

                  85c3e1144f85c94e5e699901e15146c5807f6314

                  SHA256

                  37498efe97e31fa1cd2a303938cd4e91498a76b44aab8f021c07b8d81408a93c

                  SHA512

                  c8bdfbc1d07cac02c01fb2b4faf2be49a280cebddab2fc2437907b533837088ec42fcdc7b03e6916767ecf002f1d1a0fbe951df537e217be10fbf40c795cb2e1

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9ec6c9f657200ebb6db2a31b1556aca1

                  SHA1

                  07b4b9e3bb9071ed1fd407a7def4bea3494e30c7

                  SHA256

                  1142b9cbb3d781afa14d7303daaaa2f3172243d839b7158429ab3f1c05a2f683

                  SHA512

                  1d2b1a5d3d7dd36fdcc6355a6285d4d960a764e4b786e19025bd92b36e50aa7f7e6335b6ac27222bcb3bef19129765ff156d50674f35ae9ee38b964df8dcd38d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9ec6c9f657200ebb6db2a31b1556aca1

                  SHA1

                  07b4b9e3bb9071ed1fd407a7def4bea3494e30c7

                  SHA256

                  1142b9cbb3d781afa14d7303daaaa2f3172243d839b7158429ab3f1c05a2f683

                  SHA512

                  1d2b1a5d3d7dd36fdcc6355a6285d4d960a764e4b786e19025bd92b36e50aa7f7e6335b6ac27222bcb3bef19129765ff156d50674f35ae9ee38b964df8dcd38d

                • \Users\Admin\AppData\Local\Temp\nsoFC0E.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsoFC0E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoFC0E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoFC0E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoFC0E.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d5228a55fd11931e4fae2afc16260ac1

                  SHA1

                  a3a9ab09fe6b461629a5ffd56787eac48b2c6257

                  SHA256

                  bbd1028e742ee8531ff05f9d48a363970abeb04aaadcbf45dafdeeeb7c206fc5

                  SHA512

                  303972f46a17e148a026094a0fe5754caa8c023151ed95e1ac73403e26bdd2c3b664b50f2ce83a372b6af1686088d32de1ad1b0851ac15d8d6a84c8e53b93c4b

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d5228a55fd11931e4fae2afc16260ac1

                  SHA1

                  a3a9ab09fe6b461629a5ffd56787eac48b2c6257

                  SHA256

                  bbd1028e742ee8531ff05f9d48a363970abeb04aaadcbf45dafdeeeb7c206fc5

                  SHA512

                  303972f46a17e148a026094a0fe5754caa8c023151ed95e1ac73403e26bdd2c3b664b50f2ce83a372b6af1686088d32de1ad1b0851ac15d8d6a84c8e53b93c4b

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d5228a55fd11931e4fae2afc16260ac1

                  SHA1

                  a3a9ab09fe6b461629a5ffd56787eac48b2c6257

                  SHA256

                  bbd1028e742ee8531ff05f9d48a363970abeb04aaadcbf45dafdeeeb7c206fc5

                  SHA512

                  303972f46a17e148a026094a0fe5754caa8c023151ed95e1ac73403e26bdd2c3b664b50f2ce83a372b6af1686088d32de1ad1b0851ac15d8d6a84c8e53b93c4b

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  0b0821e71e4fa18595270070f93f5fd8

                  SHA1

                  6def4cc7582eae9d8ed88a5c30de8958726fb25e

                  SHA256

                  41e5d95670146b96443c32b121a854fe1fe5adc9c1da308ec62769a78f5cdc0c

                  SHA512

                  9780709eb1810368e6cb7724112b82840cde3b007c62e3cb69cd39a38bdf83a7105f64f71a5846fa7d3bb6aba85d9cf710e29bda14e4c9115620162e333d9fa6

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  244KB

                  MD5

                  0b0821e71e4fa18595270070f93f5fd8

                  SHA1

                  6def4cc7582eae9d8ed88a5c30de8958726fb25e

                  SHA256

                  41e5d95670146b96443c32b121a854fe1fe5adc9c1da308ec62769a78f5cdc0c

                  SHA512

                  9780709eb1810368e6cb7724112b82840cde3b007c62e3cb69cd39a38bdf83a7105f64f71a5846fa7d3bb6aba85d9cf710e29bda14e4c9115620162e333d9fa6

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  8b0ea2875a0c4cf97a9759bee4e152ef

                  SHA1

                  979195c835fd8bb575d643ed830117bd2b28d9f4

                  SHA256

                  a1bc7350f8b2e477063072d7f7b77f4be482a59ed5fd8b66ccfa1402826a8ad8

                  SHA512

                  a5536f7d7d9f2b4336342e92f415f40c22416f3e486c97811e5df3664051b48b552e3412e11f0097f71447a9b93b5ed4f33920fc603f79a835e27c2d7ac603c9

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  4601960072941e27424b963f8bd7b03a

                  SHA1

                  85c3e1144f85c94e5e699901e15146c5807f6314

                  SHA256

                  37498efe97e31fa1cd2a303938cd4e91498a76b44aab8f021c07b8d81408a93c

                  SHA512

                  c8bdfbc1d07cac02c01fb2b4faf2be49a280cebddab2fc2437907b533837088ec42fcdc7b03e6916767ecf002f1d1a0fbe951df537e217be10fbf40c795cb2e1

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9ec6c9f657200ebb6db2a31b1556aca1

                  SHA1

                  07b4b9e3bb9071ed1fd407a7def4bea3494e30c7

                  SHA256

                  1142b9cbb3d781afa14d7303daaaa2f3172243d839b7158429ab3f1c05a2f683

                  SHA512

                  1d2b1a5d3d7dd36fdcc6355a6285d4d960a764e4b786e19025bd92b36e50aa7f7e6335b6ac27222bcb3bef19129765ff156d50674f35ae9ee38b964df8dcd38d

                • memory/1972-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

                  Filesize

                  8KB

                • memory/1972-62-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1972-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB