Analysis

  • max time kernel
    80s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:35

General

  • Target

    0202703e168d489402eefe2cb53749e10ea31510d034f85d6dd4d0b33762d775.exe

  • Size

    603KB

  • MD5

    d6acd74ebbe255d6bbc231c782c8bc6e

  • SHA1

    0f14dad17d259a2e8fdd1e1d30360302a5a1da72

  • SHA256

    0202703e168d489402eefe2cb53749e10ea31510d034f85d6dd4d0b33762d775

  • SHA512

    00884c2a8e85ca8a00d82d8a30993e26c110667b480d79e4e221c2de21fa86bdd23066aceb4cba13c29402e4d71c33ed7bcc692b02d137c7b3eefe8413269aba

  • SSDEEP

    12288:wIny5DYTmI1RrJM/6IdN57vf/OWo4esLkfhtO7/on:OUTmORy/BdfkmLiO7Qn

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\0202703e168d489402eefe2cb53749e10ea31510d034f85d6dd4d0b33762d775.exe
    "C:\Users\Admin\AppData\Local\Temp\0202703e168d489402eefe2cb53749e10ea31510d034f85d6dd4d0b33762d775.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:796
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:524
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1308
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:696
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1524
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:552
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1688
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1760
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:692
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1084
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1092
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:608
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1968

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe20d53d72c5c59bcb1d7afbdb1bf6d3

            SHA1

            d6c4f803c217b5a831357f67a744579e8c2f9428

            SHA256

            43408eb5f1383867b7e3c35c72dc4768c76f5d61f25252fb325a0c1837732970

            SHA512

            c8e48f7e37068f1fe704627c4cdf15c2ddf9599c12be5967301b55686e62d6e55c8803a4ad08aa79858b50e2984f7e97bc92e1030b6c3ec30ad98c53cd734cb8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            51ebedfb7be7b220ca2ed465e9969fc5

            SHA1

            57bee7d929851d5813cac89b4e7108028d980e6a

            SHA256

            873f5152b7dd691754e82fc95236ab2cbc800dfd564744c054ea98dafb687482

            SHA512

            9eef9f6bae5e38c2659e2b0bce483a9b7cefc88e1dfbdfac9e039e97181a32a01a4443ebe4f1f041b692a233bbf532c796f23bf1d055a9969b3b0b7d8475c96c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            70e12f75c7197998170995f0fb3d0501

            SHA1

            734e4e276d6d044d977d630b280b1bc95d0a7c9a

            SHA256

            9aa068f4a0e89c8f9d48caa1ee1ed23be4928d565ae82b5cdceeb1c307ffa0a2

            SHA512

            a821e76c37daeabc0325c47ee3bfa9e0bba91782fa58bd82bc120d735317405cd34eb0f32df9441eced9a32d550436977a559b231e6be79e0e717d99947d4442

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7f5de31a01953571932f84d0bcee57d

            SHA1

            406cfeeb16ab95e93376415eeb8f027967974100

            SHA256

            26fcf799d88fdf0d5f1ce7fc67309d2ec467a439219c512f62e5e23a37021ebe

            SHA512

            5f4faaf3e64db85c2fb71cb0b88b11b7639e3eb46d5658732d566fafadc964de971931f3859009ad65200ee92764b471a302edca56f34dc791ce89fccd94ab54

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7f5de31a01953571932f84d0bcee57d

            SHA1

            406cfeeb16ab95e93376415eeb8f027967974100

            SHA256

            26fcf799d88fdf0d5f1ce7fc67309d2ec467a439219c512f62e5e23a37021ebe

            SHA512

            5f4faaf3e64db85c2fb71cb0b88b11b7639e3eb46d5658732d566fafadc964de971931f3859009ad65200ee92764b471a302edca56f34dc791ce89fccd94ab54

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2b11eadf209b571c3f986346f6f22077

            SHA1

            519527b855e7efc957fec0c131f3998cc9440fab

            SHA256

            beb3a81c3d7d904111417a3adf26165a085053599437fcb10166d5aa8b2e88aa

            SHA512

            ad3dbe08e037084f5bf36c23131395cc79a33a2e3b5a7bf6c2cdb4a01b0aa3e6a434571bb3d8c9bc83fa4b2e20a894d0780644231d51d5e2d10cb915686f4b84

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2b11eadf209b571c3f986346f6f22077

            SHA1

            519527b855e7efc957fec0c131f3998cc9440fab

            SHA256

            beb3a81c3d7d904111417a3adf26165a085053599437fcb10166d5aa8b2e88aa

            SHA512

            ad3dbe08e037084f5bf36c23131395cc79a33a2e3b5a7bf6c2cdb4a01b0aa3e6a434571bb3d8c9bc83fa4b2e20a894d0780644231d51d5e2d10cb915686f4b84

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseBB76.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe20d53d72c5c59bcb1d7afbdb1bf6d3

            SHA1

            d6c4f803c217b5a831357f67a744579e8c2f9428

            SHA256

            43408eb5f1383867b7e3c35c72dc4768c76f5d61f25252fb325a0c1837732970

            SHA512

            c8e48f7e37068f1fe704627c4cdf15c2ddf9599c12be5967301b55686e62d6e55c8803a4ad08aa79858b50e2984f7e97bc92e1030b6c3ec30ad98c53cd734cb8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe20d53d72c5c59bcb1d7afbdb1bf6d3

            SHA1

            d6c4f803c217b5a831357f67a744579e8c2f9428

            SHA256

            43408eb5f1383867b7e3c35c72dc4768c76f5d61f25252fb325a0c1837732970

            SHA512

            c8e48f7e37068f1fe704627c4cdf15c2ddf9599c12be5967301b55686e62d6e55c8803a4ad08aa79858b50e2984f7e97bc92e1030b6c3ec30ad98c53cd734cb8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe20d53d72c5c59bcb1d7afbdb1bf6d3

            SHA1

            d6c4f803c217b5a831357f67a744579e8c2f9428

            SHA256

            43408eb5f1383867b7e3c35c72dc4768c76f5d61f25252fb325a0c1837732970

            SHA512

            c8e48f7e37068f1fe704627c4cdf15c2ddf9599c12be5967301b55686e62d6e55c8803a4ad08aa79858b50e2984f7e97bc92e1030b6c3ec30ad98c53cd734cb8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            51ebedfb7be7b220ca2ed465e9969fc5

            SHA1

            57bee7d929851d5813cac89b4e7108028d980e6a

            SHA256

            873f5152b7dd691754e82fc95236ab2cbc800dfd564744c054ea98dafb687482

            SHA512

            9eef9f6bae5e38c2659e2b0bce483a9b7cefc88e1dfbdfac9e039e97181a32a01a4443ebe4f1f041b692a233bbf532c796f23bf1d055a9969b3b0b7d8475c96c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            51ebedfb7be7b220ca2ed465e9969fc5

            SHA1

            57bee7d929851d5813cac89b4e7108028d980e6a

            SHA256

            873f5152b7dd691754e82fc95236ab2cbc800dfd564744c054ea98dafb687482

            SHA512

            9eef9f6bae5e38c2659e2b0bce483a9b7cefc88e1dfbdfac9e039e97181a32a01a4443ebe4f1f041b692a233bbf532c796f23bf1d055a9969b3b0b7d8475c96c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            70e12f75c7197998170995f0fb3d0501

            SHA1

            734e4e276d6d044d977d630b280b1bc95d0a7c9a

            SHA256

            9aa068f4a0e89c8f9d48caa1ee1ed23be4928d565ae82b5cdceeb1c307ffa0a2

            SHA512

            a821e76c37daeabc0325c47ee3bfa9e0bba91782fa58bd82bc120d735317405cd34eb0f32df9441eced9a32d550436977a559b231e6be79e0e717d99947d4442

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7f5de31a01953571932f84d0bcee57d

            SHA1

            406cfeeb16ab95e93376415eeb8f027967974100

            SHA256

            26fcf799d88fdf0d5f1ce7fc67309d2ec467a439219c512f62e5e23a37021ebe

            SHA512

            5f4faaf3e64db85c2fb71cb0b88b11b7639e3eb46d5658732d566fafadc964de971931f3859009ad65200ee92764b471a302edca56f34dc791ce89fccd94ab54

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2b11eadf209b571c3f986346f6f22077

            SHA1

            519527b855e7efc957fec0c131f3998cc9440fab

            SHA256

            beb3a81c3d7d904111417a3adf26165a085053599437fcb10166d5aa8b2e88aa

            SHA512

            ad3dbe08e037084f5bf36c23131395cc79a33a2e3b5a7bf6c2cdb4a01b0aa3e6a434571bb3d8c9bc83fa4b2e20a894d0780644231d51d5e2d10cb915686f4b84

          • memory/524-57-0x0000000000000000-mapping.dmp

          • memory/552-64-0x0000000000000000-mapping.dmp

          • memory/692-82-0x0000000000000000-mapping.dmp

          • memory/696-61-0x0000000000000000-mapping.dmp

          • memory/796-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/796-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/796-54-0x0000000074D71000-0x0000000074D73000-memory.dmp

            Filesize

            8KB

          • memory/796-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/928-81-0x0000000000000000-mapping.dmp

          • memory/1084-87-0x0000000000000000-mapping.dmp

          • memory/1092-88-0x0000000000000000-mapping.dmp

          • memory/1308-58-0x0000000000000000-mapping.dmp

          • memory/1524-62-0x0000000000000000-mapping.dmp

          • memory/1688-71-0x0000000000000000-mapping.dmp

          • memory/1760-77-0x0000000000000000-mapping.dmp