Analysis

  • max time kernel
    153s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    2f26086703e184665dc9961f4ffb0405fb39d661427dc4f6d1fb210c4b573e7a.exe

  • Size

    601KB

  • MD5

    79eb625c1ed75d3e9c73f5e41ec14905

  • SHA1

    4ccd36cff0312aa1721478aba9ae5fa2aa8319f7

  • SHA256

    2f26086703e184665dc9961f4ffb0405fb39d661427dc4f6d1fb210c4b573e7a

  • SHA512

    887da03368b3b273519827994f0973fef61bf576a556d2766efd2a02044a0a3a7fc1ac645f3a15932a63aecc0d95d373116b9c43fccac3ed34d694b66a190ea6

  • SSDEEP

    12288:vIny5DYToRdUys2yOyIbuk7xUaXyATIah3X+Dis7FGTSZ0+46xB:3UTAdURlIamBvTzl+Z7we0r

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f26086703e184665dc9961f4ffb0405fb39d661427dc4f6d1fb210c4b573e7a.exe
    "C:\Users\Admin\AppData\Local\Temp\2f26086703e184665dc9961f4ffb0405fb39d661427dc4f6d1fb210c4b573e7a.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:3328
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3600
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3712
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5080
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4532
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1240
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2100
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4520
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4644
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1520
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2060
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4836
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3156
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1560

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssE7F6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            6407b14786e5cfc0d4c0a4854950a1a8

            SHA1

            eb9f35047844abee78093b1f1c7fada8eb65e4ca

            SHA256

            ffeee83f18188c6aee845afe255cabc13cd269c213ba825fc083014920c1f519

            SHA512

            58001aa3524260225638dc372b0259800a9be832786bd90d20c1026a345af5fc62b6e79ff74e69df5b6fbe759aa196ab61be27516b703c97f2f4d74b8c9a10e9

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

            106KB

            MD5

            6407b14786e5cfc0d4c0a4854950a1a8

            SHA1

            eb9f35047844abee78093b1f1c7fada8eb65e4ca

            SHA256

            ffeee83f18188c6aee845afe255cabc13cd269c213ba825fc083014920c1f519

            SHA512

            58001aa3524260225638dc372b0259800a9be832786bd90d20c1026a345af5fc62b6e79ff74e69df5b6fbe759aa196ab61be27516b703c97f2f4d74b8c9a10e9

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

            106KB

            MD5

            6407b14786e5cfc0d4c0a4854950a1a8

            SHA1

            eb9f35047844abee78093b1f1c7fada8eb65e4ca

            SHA256

            ffeee83f18188c6aee845afe255cabc13cd269c213ba825fc083014920c1f519

            SHA512

            58001aa3524260225638dc372b0259800a9be832786bd90d20c1026a345af5fc62b6e79ff74e69df5b6fbe759aa196ab61be27516b703c97f2f4d74b8c9a10e9

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

            106KB

            MD5

            6407b14786e5cfc0d4c0a4854950a1a8

            SHA1

            eb9f35047844abee78093b1f1c7fada8eb65e4ca

            SHA256

            ffeee83f18188c6aee845afe255cabc13cd269c213ba825fc083014920c1f519

            SHA512

            58001aa3524260225638dc372b0259800a9be832786bd90d20c1026a345af5fc62b6e79ff74e69df5b6fbe759aa196ab61be27516b703c97f2f4d74b8c9a10e9

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

            241KB

            MD5

            bf8b0427db18ed2318eea7a76bf7076c

            SHA1

            818c4d490449ba2fcaf3c0ad7c9102b09844ec58

            SHA256

            dba43f624a7814195a387c4a03fa4d7d00486ef69844243bbbf411173d65f979

            SHA512

            46a6c75614655cbc85d2a2402a46b20534b4cb0d2a2c8e1f9c07a9c029a6fc12ee6dbaebb07c2eca4f5de7d74a8561484d54b8446241571685520285974eb7cf

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

            241KB

            MD5

            bf8b0427db18ed2318eea7a76bf7076c

            SHA1

            818c4d490449ba2fcaf3c0ad7c9102b09844ec58

            SHA256

            dba43f624a7814195a387c4a03fa4d7d00486ef69844243bbbf411173d65f979

            SHA512

            46a6c75614655cbc85d2a2402a46b20534b4cb0d2a2c8e1f9c07a9c029a6fc12ee6dbaebb07c2eca4f5de7d74a8561484d54b8446241571685520285974eb7cf

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

            241KB

            MD5

            bf8b0427db18ed2318eea7a76bf7076c

            SHA1

            818c4d490449ba2fcaf3c0ad7c9102b09844ec58

            SHA256

            dba43f624a7814195a387c4a03fa4d7d00486ef69844243bbbf411173d65f979

            SHA512

            46a6c75614655cbc85d2a2402a46b20534b4cb0d2a2c8e1f9c07a9c029a6fc12ee6dbaebb07c2eca4f5de7d74a8561484d54b8446241571685520285974eb7cf

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

            108KB

            MD5

            a65631497e141960f101ba2174f267d7

            SHA1

            7f44a6d56d3907c71092a22ecc7b9668b8e72396

            SHA256

            3e368f11e465bbb02ab8c69a47ea13f620b1ca4fc89db5a8de15726f515670f4

            SHA512

            12582265e1de482d5e8b70ede25d35b8fa50d642cb01019fe87c19d918a1cb36d5819e1465d8ef03a6769fe4bac33fe7bde7b72fe0b8285a8190c68a1c65b2c1

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

            108KB

            MD5

            a65631497e141960f101ba2174f267d7

            SHA1

            7f44a6d56d3907c71092a22ecc7b9668b8e72396

            SHA256

            3e368f11e465bbb02ab8c69a47ea13f620b1ca4fc89db5a8de15726f515670f4

            SHA512

            12582265e1de482d5e8b70ede25d35b8fa50d642cb01019fe87c19d918a1cb36d5819e1465d8ef03a6769fe4bac33fe7bde7b72fe0b8285a8190c68a1c65b2c1

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

            176KB

            MD5

            5ab6bffc927fb3cd6b6c7ccf5803e115

            SHA1

            9981260ddbcec1a10d059079a15a5246f38ddcc0

            SHA256

            fd9b6b15509eef1f763cbd1c86d769dcb97136edc6038fb29505969dbab8951c

            SHA512

            7b6fa53726c39cd9738464f965f0ab8bfb899f3679ce9e62b03413019edf4cbdcd4589f926683e80d11d486d4714af4643f19217f9535440abd7d607ea4e8053

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

            176KB

            MD5

            5ab6bffc927fb3cd6b6c7ccf5803e115

            SHA1

            9981260ddbcec1a10d059079a15a5246f38ddcc0

            SHA256

            fd9b6b15509eef1f763cbd1c86d769dcb97136edc6038fb29505969dbab8951c

            SHA512

            7b6fa53726c39cd9738464f965f0ab8bfb899f3679ce9e62b03413019edf4cbdcd4589f926683e80d11d486d4714af4643f19217f9535440abd7d607ea4e8053

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

            176KB

            MD5

            5ab6bffc927fb3cd6b6c7ccf5803e115

            SHA1

            9981260ddbcec1a10d059079a15a5246f38ddcc0

            SHA256

            fd9b6b15509eef1f763cbd1c86d769dcb97136edc6038fb29505969dbab8951c

            SHA512

            7b6fa53726c39cd9738464f965f0ab8bfb899f3679ce9e62b03413019edf4cbdcd4589f926683e80d11d486d4714af4643f19217f9535440abd7d607ea4e8053

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

            159KB

            MD5

            b5009ce4de86dfda0afd53a7cb329d05

            SHA1

            57de291b71782bd6ede71f789fe03b5cd4a90d0b

            SHA256

            6eba6885db02d5e4476645b6d7927867da80a32e0f50d2565d8352f2d586dd37

            SHA512

            6f857f7e95e595a0839280a6f3aa4e56d5bfb5bbe321c945e45ee0d88adee536cee29f54564a4f1e3711a9b9bff8ca39f2088152f4953efb13dc56856338d486

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

            159KB

            MD5

            b5009ce4de86dfda0afd53a7cb329d05

            SHA1

            57de291b71782bd6ede71f789fe03b5cd4a90d0b

            SHA256

            6eba6885db02d5e4476645b6d7927867da80a32e0f50d2565d8352f2d586dd37

            SHA512

            6f857f7e95e595a0839280a6f3aa4e56d5bfb5bbe321c945e45ee0d88adee536cee29f54564a4f1e3711a9b9bff8ca39f2088152f4953efb13dc56856338d486

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

            159KB

            MD5

            b5009ce4de86dfda0afd53a7cb329d05

            SHA1

            57de291b71782bd6ede71f789fe03b5cd4a90d0b

            SHA256

            6eba6885db02d5e4476645b6d7927867da80a32e0f50d2565d8352f2d586dd37

            SHA512

            6f857f7e95e595a0839280a6f3aa4e56d5bfb5bbe321c945e45ee0d88adee536cee29f54564a4f1e3711a9b9bff8ca39f2088152f4953efb13dc56856338d486

          • memory/1240-142-0x0000000000000000-mapping.dmp
          • memory/1520-160-0x0000000000000000-mapping.dmp
          • memory/2060-166-0x0000000000000000-mapping.dmp
          • memory/2100-148-0x0000000000000000-mapping.dmp
          • memory/3328-147-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3328-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3328-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3600-136-0x0000000000000000-mapping.dmp
          • memory/3712-137-0x0000000000000000-mapping.dmp
          • memory/4520-154-0x0000000000000000-mapping.dmp
          • memory/4532-141-0x0000000000000000-mapping.dmp
          • memory/4644-159-0x0000000000000000-mapping.dmp
          • memory/4836-167-0x0000000000000000-mapping.dmp
          • memory/5080-140-0x0000000000000000-mapping.dmp