Analysis

  • max time kernel
    139s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 06:09

General

  • Target

    bbd71b22c61ce7e874fefbf583b4c93222a8426fcfd5d4bfefbb406aa3ef33c9.exe

  • Size

    675KB

  • MD5

    81d91c401387af774844ab375c65ab4c

  • SHA1

    6042f3a77d7e7f2781fa72fdcd33e067b4156234

  • SHA256

    bbd71b22c61ce7e874fefbf583b4c93222a8426fcfd5d4bfefbb406aa3ef33c9

  • SHA512

    0b649539828566e99b3397ffc04e49062ed9fc992dbd66192b2d41b0a8610803a0a0bc703f397bca48b3d90ba93b862c96f147a25ecb61c5694ef990fd02c772

  • SSDEEP

    12288:edgmy6lZ8E9soPvowWbfjEDTrjYFetpD8tJZe63noQwQYwak5wCgGl:edgX6tTL6fY7Ts53BZ

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\bbd71b22c61ce7e874fefbf583b4c93222a8426fcfd5d4bfefbb406aa3ef33c9.exe
    "C:\Users\Admin\AppData\Local\Temp\bbd71b22c61ce7e874fefbf583b4c93222a8426fcfd5d4bfefbb406aa3ef33c9.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:1944
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4980
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5036
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1816
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4284
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5020
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:456
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:208
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2516
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:368
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:332
          • 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:2296
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3436

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Users\Admin\AppData\Local\Temp\nsqBC04.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d9a0b7ecf5e5d295e913ebc25981b3b6

                  SHA1

                  7b53288fbc7a978df39f0cd04ce46e3cea80f1be

                  SHA256

                  ed4a87c826e4ea8f3e38453be342d32f2e8ad23fa3da2b7492d366f71d1a719d

                  SHA512

                  63e06d74c22cd1419caf3a3288ea81d4024c9d4abfd470b0912476746b7865d1e7f03610a5f56463db3c1a9b870193c1389705042ddd1ddca45bf37b8ca3f4b6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d9a0b7ecf5e5d295e913ebc25981b3b6

                  SHA1

                  7b53288fbc7a978df39f0cd04ce46e3cea80f1be

                  SHA256

                  ed4a87c826e4ea8f3e38453be342d32f2e8ad23fa3da2b7492d366f71d1a719d

                  SHA512

                  63e06d74c22cd1419caf3a3288ea81d4024c9d4abfd470b0912476746b7865d1e7f03610a5f56463db3c1a9b870193c1389705042ddd1ddca45bf37b8ca3f4b6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d9a0b7ecf5e5d295e913ebc25981b3b6

                  SHA1

                  7b53288fbc7a978df39f0cd04ce46e3cea80f1be

                  SHA256

                  ed4a87c826e4ea8f3e38453be342d32f2e8ad23fa3da2b7492d366f71d1a719d

                  SHA512

                  63e06d74c22cd1419caf3a3288ea81d4024c9d4abfd470b0912476746b7865d1e7f03610a5f56463db3c1a9b870193c1389705042ddd1ddca45bf37b8ca3f4b6

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  d9a0b7ecf5e5d295e913ebc25981b3b6

                  SHA1

                  7b53288fbc7a978df39f0cd04ce46e3cea80f1be

                  SHA256

                  ed4a87c826e4ea8f3e38453be342d32f2e8ad23fa3da2b7492d366f71d1a719d

                  SHA512

                  63e06d74c22cd1419caf3a3288ea81d4024c9d4abfd470b0912476746b7865d1e7f03610a5f56463db3c1a9b870193c1389705042ddd1ddca45bf37b8ca3f4b6

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  5ec5ca574a1e33ce10e242d38132d8fb

                  SHA1

                  c83479bff349580b01f86d9dcaede2c9f333516d

                  SHA256

                  beab23ea8e8a7dc9a6d2a2b1aa868a4bdc5823abc765a8701a17acd82ad128ed

                  SHA512

                  b1f26b4ff5eb30349592b890c3ad0a9cf24a2b93d531adba1d0bcd6fa1203381cd7dbad54b34a0fda94a1ba96fb780edd6887bd0fb2fbc256a3050b1c35982aa

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  5ec5ca574a1e33ce10e242d38132d8fb

                  SHA1

                  c83479bff349580b01f86d9dcaede2c9f333516d

                  SHA256

                  beab23ea8e8a7dc9a6d2a2b1aa868a4bdc5823abc765a8701a17acd82ad128ed

                  SHA512

                  b1f26b4ff5eb30349592b890c3ad0a9cf24a2b93d531adba1d0bcd6fa1203381cd7dbad54b34a0fda94a1ba96fb780edd6887bd0fb2fbc256a3050b1c35982aa

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  5ec5ca574a1e33ce10e242d38132d8fb

                  SHA1

                  c83479bff349580b01f86d9dcaede2c9f333516d

                  SHA256

                  beab23ea8e8a7dc9a6d2a2b1aa868a4bdc5823abc765a8701a17acd82ad128ed

                  SHA512

                  b1f26b4ff5eb30349592b890c3ad0a9cf24a2b93d531adba1d0bcd6fa1203381cd7dbad54b34a0fda94a1ba96fb780edd6887bd0fb2fbc256a3050b1c35982aa

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  212a7cc6cf7fed6035f53a1cd56ec10c

                  SHA1

                  f5a62e6f2a9871f9e68ba8fdbbe9e46d04e91f7d

                  SHA256

                  aac188caeaa8a45a3972a7736998d0d7a521309cb0eb8aae6747a24379785c82

                  SHA512

                  5339f3fbd24ecd5305e333bfc912b0d9ca9ed24cc348e74c0bdf688ff73771ffc6be97ff4a92e55f368956cbe3e523eabe86498b1779dca57ed3191cac201402

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  212a7cc6cf7fed6035f53a1cd56ec10c

                  SHA1

                  f5a62e6f2a9871f9e68ba8fdbbe9e46d04e91f7d

                  SHA256

                  aac188caeaa8a45a3972a7736998d0d7a521309cb0eb8aae6747a24379785c82

                  SHA512

                  5339f3fbd24ecd5305e333bfc912b0d9ca9ed24cc348e74c0bdf688ff73771ffc6be97ff4a92e55f368956cbe3e523eabe86498b1779dca57ed3191cac201402

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  0f145b85cdbfbbe1d71433d106a6788a

                  SHA1

                  c473988c1e9e213dee64e35879c5132a7fdde358

                  SHA256

                  cf51236aee048c2fa78c1e3cbca3ae0f365cd4ca2059ec4b985b2c71a1a9ca7b

                  SHA512

                  ade21b90625bfa244c494317540aff1ad0f78952ecde19093db9fdd24bc1851064770198afe36beb751ef66fb1f0f41e17079d0fc2c9313bcb89edf9661467ee

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  0f145b85cdbfbbe1d71433d106a6788a

                  SHA1

                  c473988c1e9e213dee64e35879c5132a7fdde358

                  SHA256

                  cf51236aee048c2fa78c1e3cbca3ae0f365cd4ca2059ec4b985b2c71a1a9ca7b

                  SHA512

                  ade21b90625bfa244c494317540aff1ad0f78952ecde19093db9fdd24bc1851064770198afe36beb751ef66fb1f0f41e17079d0fc2c9313bcb89edf9661467ee

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  0f145b85cdbfbbe1d71433d106a6788a

                  SHA1

                  c473988c1e9e213dee64e35879c5132a7fdde358

                  SHA256

                  cf51236aee048c2fa78c1e3cbca3ae0f365cd4ca2059ec4b985b2c71a1a9ca7b

                  SHA512

                  ade21b90625bfa244c494317540aff1ad0f78952ecde19093db9fdd24bc1851064770198afe36beb751ef66fb1f0f41e17079d0fc2c9313bcb89edf9661467ee

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  04dc717bccd0d7077e9c9a578a2cac02

                  SHA1

                  38e342383a610118b71da0204624f592c87d9e21

                  SHA256

                  7919d724b0f2b2deaf85aa1e9fba5347a860ceb5e64140dbe0dcdaacb8a71a59

                  SHA512

                  652361165574dbc2401c9a1a8fb283a16c779b9234579f9dd3df055382b3ed6e0be9ccd543bebcbb4a342db3da13c83a68acdf1b505d74d9bb03d9de5fbd1498

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  04dc717bccd0d7077e9c9a578a2cac02

                  SHA1

                  38e342383a610118b71da0204624f592c87d9e21

                  SHA256

                  7919d724b0f2b2deaf85aa1e9fba5347a860ceb5e64140dbe0dcdaacb8a71a59

                  SHA512

                  652361165574dbc2401c9a1a8fb283a16c779b9234579f9dd3df055382b3ed6e0be9ccd543bebcbb4a342db3da13c83a68acdf1b505d74d9bb03d9de5fbd1498

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  04dc717bccd0d7077e9c9a578a2cac02

                  SHA1

                  38e342383a610118b71da0204624f592c87d9e21

                  SHA256

                  7919d724b0f2b2deaf85aa1e9fba5347a860ceb5e64140dbe0dcdaacb8a71a59

                  SHA512

                  652361165574dbc2401c9a1a8fb283a16c779b9234579f9dd3df055382b3ed6e0be9ccd543bebcbb4a342db3da13c83a68acdf1b505d74d9bb03d9de5fbd1498

                • memory/1944-138-0x0000000000350000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1944-133-0x0000000000350000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1944-170-0x0000000000350000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB