Analysis

  • max time kernel
    44s
  • 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 10:08

General

  • Target

    eb298fc563db8e2a137ab6b4912ad5b46c2368a2911298afdbad14590eaf2b97.exe

  • Size

    603KB

  • MD5

    03bb314ae0a8b2707553e0844b99ca5a

  • SHA1

    519e9eb649f15026a4cdfa37f3aed3106d379459

  • SHA256

    eb298fc563db8e2a137ab6b4912ad5b46c2368a2911298afdbad14590eaf2b97

  • SHA512

    2c30f0b622552c0528c26e6f2da0a033a0017fc91d7dc90a1b500e1ee93eccf4686c5da0d923bba907bece88abab5cb07d2ba87417193db8c476270af568e11c

  • SSDEEP

    12288:uIny5DYTeYsyUuU3U+5A7z0FtvruaaIiFLeSLvr:wUTeYeugA74jvLaeSrr

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\eb298fc563db8e2a137ab6b4912ad5b46c2368a2911298afdbad14590eaf2b97.exe
    "C:\Users\Admin\AppData\Local\Temp\eb298fc563db8e2a137ab6b4912ad5b46c2368a2911298afdbad14590eaf2b97.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:1032
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1240
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:556
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:580
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1460
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1572
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:928
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:276
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1408
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1772
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1496
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1988

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            037c1d22116924371f14d60267455025

            SHA1

            a17dc9cd055bca1c1587d36e64eba5e454b3eceb

            SHA256

            db6e86097f5877f7de386d588ef28d1d27fbbef551e7b78d9db91035d40e7258

            SHA512

            928e181e31d1821734ed0754249388b18814498f102b7975d897060be74c3f1ff14808110339560720df583cfc48a66aa46264feefe1a2f9a880a13c893eea0c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            406a1a21b517495c79ced24d573bd547

            SHA1

            4f443aeb5a136aaf47ad47850d01883e1aa45289

            SHA256

            d5446229e487b1248964e3e18da3fbc3df78ac2ca9eae376ef7f9d00c23fef8c

            SHA512

            a4d64f6c74bea65435c32d91a863947faffddf7182749dec7b48e05936c6152046221c755fc59cd5e8bc1878a77d3fc236a3880cfd3c708b54216825e51483dd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8f71405d516a474f254e83a03e531187

            SHA1

            f621bef507361d6eab25a02365f94f61def76d44

            SHA256

            f32415e22c27e552974e7e47f9a6004a16a80451ba4aa170d163bce4298e74fd

            SHA512

            4b148ea8475c22c95ecefc27e5beb21ad40e68313c184eeb9bd6f217eb43a3c97252cf44e4b1d0928869c8d22571092d5f238b3ff5c4072fe091cb73843c2917

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            29787320b35ca321837229baa6963480

            SHA1

            fdf0a139b96e204fe1183a2a97342f5c5b009628

            SHA256

            8b8fe9f8d6b4f1f0ea77064f51920188aa942e33940a753cea052399ece524df

            SHA512

            471ffd91a5a9b96d05a206a91a28c7afd2593c4a7aa382963eeef64f1b434120defff7b741a8a8b64039ad09824e8498acb77af69908ae6a65dc04dee1dd82fa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            29787320b35ca321837229baa6963480

            SHA1

            fdf0a139b96e204fe1183a2a97342f5c5b009628

            SHA256

            8b8fe9f8d6b4f1f0ea77064f51920188aa942e33940a753cea052399ece524df

            SHA512

            471ffd91a5a9b96d05a206a91a28c7afd2593c4a7aa382963eeef64f1b434120defff7b741a8a8b64039ad09824e8498acb77af69908ae6a65dc04dee1dd82fa

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1e1e33fe94faf95821cb7dd445042733

            SHA1

            3a3198e73d50b35d793db377202f3a3512dc1fe0

            SHA256

            b6a1dac1fad44316629344ae420a33423bbefdb7d8f8a7cd2089c49aac839d65

            SHA512

            5e0284a45cc57d75b4ae748a046dcfa3e731cf15835bccb8ce6ad6461b14581eabad41bee03b81a96125fd03e0e231f74a0077a4863262a9917809f045976f3e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1e1e33fe94faf95821cb7dd445042733

            SHA1

            3a3198e73d50b35d793db377202f3a3512dc1fe0

            SHA256

            b6a1dac1fad44316629344ae420a33423bbefdb7d8f8a7cd2089c49aac839d65

            SHA512

            5e0284a45cc57d75b4ae748a046dcfa3e731cf15835bccb8ce6ad6461b14581eabad41bee03b81a96125fd03e0e231f74a0077a4863262a9917809f045976f3e

          • \Users\Admin\AppData\Local\Temp\nsjA2E7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjA2E7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA2E7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA2E7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA2E7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            037c1d22116924371f14d60267455025

            SHA1

            a17dc9cd055bca1c1587d36e64eba5e454b3eceb

            SHA256

            db6e86097f5877f7de386d588ef28d1d27fbbef551e7b78d9db91035d40e7258

            SHA512

            928e181e31d1821734ed0754249388b18814498f102b7975d897060be74c3f1ff14808110339560720df583cfc48a66aa46264feefe1a2f9a880a13c893eea0c

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            037c1d22116924371f14d60267455025

            SHA1

            a17dc9cd055bca1c1587d36e64eba5e454b3eceb

            SHA256

            db6e86097f5877f7de386d588ef28d1d27fbbef551e7b78d9db91035d40e7258

            SHA512

            928e181e31d1821734ed0754249388b18814498f102b7975d897060be74c3f1ff14808110339560720df583cfc48a66aa46264feefe1a2f9a880a13c893eea0c

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            037c1d22116924371f14d60267455025

            SHA1

            a17dc9cd055bca1c1587d36e64eba5e454b3eceb

            SHA256

            db6e86097f5877f7de386d588ef28d1d27fbbef551e7b78d9db91035d40e7258

            SHA512

            928e181e31d1821734ed0754249388b18814498f102b7975d897060be74c3f1ff14808110339560720df583cfc48a66aa46264feefe1a2f9a880a13c893eea0c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            406a1a21b517495c79ced24d573bd547

            SHA1

            4f443aeb5a136aaf47ad47850d01883e1aa45289

            SHA256

            d5446229e487b1248964e3e18da3fbc3df78ac2ca9eae376ef7f9d00c23fef8c

            SHA512

            a4d64f6c74bea65435c32d91a863947faffddf7182749dec7b48e05936c6152046221c755fc59cd5e8bc1878a77d3fc236a3880cfd3c708b54216825e51483dd

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            406a1a21b517495c79ced24d573bd547

            SHA1

            4f443aeb5a136aaf47ad47850d01883e1aa45289

            SHA256

            d5446229e487b1248964e3e18da3fbc3df78ac2ca9eae376ef7f9d00c23fef8c

            SHA512

            a4d64f6c74bea65435c32d91a863947faffddf7182749dec7b48e05936c6152046221c755fc59cd5e8bc1878a77d3fc236a3880cfd3c708b54216825e51483dd

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8f71405d516a474f254e83a03e531187

            SHA1

            f621bef507361d6eab25a02365f94f61def76d44

            SHA256

            f32415e22c27e552974e7e47f9a6004a16a80451ba4aa170d163bce4298e74fd

            SHA512

            4b148ea8475c22c95ecefc27e5beb21ad40e68313c184eeb9bd6f217eb43a3c97252cf44e4b1d0928869c8d22571092d5f238b3ff5c4072fe091cb73843c2917

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            29787320b35ca321837229baa6963480

            SHA1

            fdf0a139b96e204fe1183a2a97342f5c5b009628

            SHA256

            8b8fe9f8d6b4f1f0ea77064f51920188aa942e33940a753cea052399ece524df

            SHA512

            471ffd91a5a9b96d05a206a91a28c7afd2593c4a7aa382963eeef64f1b434120defff7b741a8a8b64039ad09824e8498acb77af69908ae6a65dc04dee1dd82fa

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1e1e33fe94faf95821cb7dd445042733

            SHA1

            3a3198e73d50b35d793db377202f3a3512dc1fe0

            SHA256

            b6a1dac1fad44316629344ae420a33423bbefdb7d8f8a7cd2089c49aac839d65

            SHA512

            5e0284a45cc57d75b4ae748a046dcfa3e731cf15835bccb8ce6ad6461b14581eabad41bee03b81a96125fd03e0e231f74a0077a4863262a9917809f045976f3e

          • memory/276-80-0x0000000000000000-mapping.dmp

          • memory/548-86-0x0000000000000000-mapping.dmp

          • memory/556-60-0x0000000000000000-mapping.dmp

          • memory/580-61-0x0000000000000000-mapping.dmp

          • memory/928-76-0x0000000000000000-mapping.dmp

          • memory/1032-54-0x0000000076411000-0x0000000076413000-memory.dmp

            Filesize

            8KB

          • memory/1032-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1032-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1240-58-0x0000000000000000-mapping.dmp

          • memory/1408-81-0x0000000000000000-mapping.dmp

          • memory/1460-64-0x0000000000000000-mapping.dmp

          • memory/1572-70-0x0000000000000000-mapping.dmp

          • memory/1772-87-0x0000000000000000-mapping.dmp

          • memory/2008-57-0x0000000000000000-mapping.dmp