Analysis

  • max time kernel
    31s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:24

General

  • Target

    6b0b1409bc1fb6cd592864cbe03c387aeac27f9131c09218fe51be60eb1ce6d8.exe

  • Size

    603KB

  • MD5

    9ca334239552fc1c58c71807f695b3ae

  • SHA1

    f7e6557df8c30734ad723726cdeb998c6bb39d54

  • SHA256

    6b0b1409bc1fb6cd592864cbe03c387aeac27f9131c09218fe51be60eb1ce6d8

  • SHA512

    4cffb46abaaf55ff92a1b125a6e80a2a8cfabe138bf3d1921433bff9b96d67038fac98f28849189389c0e7fdbd9a45a5c5a2810671a261794e48464118ccd530

  • SSDEEP

    12288:1Iny5DYTmIyjqt5oajO0RrpTl45qy/cL29YnxP/V2q/GLphEczezu:BUTm5jq/jBNBloP/ca6nx12VVh1e

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\6b0b1409bc1fb6cd592864cbe03c387aeac27f9131c09218fe51be60eb1ce6d8.exe
    "C:\Users\Admin\AppData\Local\Temp\6b0b1409bc1fb6cd592864cbe03c387aeac27f9131c09218fe51be60eb1ce6d8.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:1392
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1748
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1756
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:956
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1036
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1504
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1992
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1140
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1812
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:880
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1480
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:680

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4cf4dcdc6b19a0713e0f6bbb8a768dcb

            SHA1

            f717295fadd7b6294771a064be83601dd5fc0de1

            SHA256

            371caa4627a080c5e0cfe6c44fffd8695883a57820f82bf28caa5609fc91b011

            SHA512

            ecf66ea4dc10421bf08a37e7480593c6b7c9df3342b07809613e2aea53f5d86a6e5bd64479c1579bf450f96a6b5d271abb5abbcacbd04eb10bc8a5744d4914ce

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a504db38b1e33a4554b0cb148033403f

            SHA1

            3d0ff3cc08f04f2a5c39bce7da10f928d55c32d7

            SHA256

            cb33f31882bf1e73a95f50154c2e1277445c6e44560034525ebdbbda2054f162

            SHA512

            d8add0ccfbb07bec03615a7882ee2ba26bd988dc53590053af7782f196b010237ded13d290a9c6291ca142358159853211cbd0b52987d74e7ae780fb65f80968

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dc2ccfe9e40bee9df10880739d996ce1

            SHA1

            f352b42b803c9c43663fd35b27f176e87c012540

            SHA256

            13d6481944f8b207fb1a4d7144f3afdb517081d6632f36a1dee01b8adfe17bb2

            SHA512

            fa361e626d4eff23e723721fc3426cb07aa22d18fce794e8d4d9a3b1613865a68791a92e8f7fffa7779f2aff6d423cf36f7164812dd403828e58156e95bc746b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4726e6f064dd9a496d74ec3255054b43

            SHA1

            739e41881873219068e89134a6f98748dc41121a

            SHA256

            1b658f040a9c3b0acc2ea986e626b3bac33b873f62b387450b5ef4c34862c3d9

            SHA512

            994bcef5999ca1339f86ffa4552d82ca8bb933006fab6b6f72d171cbff6354ca91820d04d86087f213294fdd5b9a4b59bc2eb2a9c6bca075bb095ec4a30d6e72

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4726e6f064dd9a496d74ec3255054b43

            SHA1

            739e41881873219068e89134a6f98748dc41121a

            SHA256

            1b658f040a9c3b0acc2ea986e626b3bac33b873f62b387450b5ef4c34862c3d9

            SHA512

            994bcef5999ca1339f86ffa4552d82ca8bb933006fab6b6f72d171cbff6354ca91820d04d86087f213294fdd5b9a4b59bc2eb2a9c6bca075bb095ec4a30d6e72

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            6ce0c88e6d697ff5545432a655f75fb2

            SHA1

            4c244c4bd2d7c286383d168626b148b682e2bafe

            SHA256

            234060dd1c70dfa251200c8a35c082e93e19cac213cc78e4ee700f2858a71b79

            SHA512

            70c4e1b5504b0b2fa93271cacfb3d2ad391009610e85d3f5e36f1d6cf7d0f5ead7a252bdefb6ae4b3df76320f54064502fd9a0e17667e63d7f57bf2a082ddd95

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            6ce0c88e6d697ff5545432a655f75fb2

            SHA1

            4c244c4bd2d7c286383d168626b148b682e2bafe

            SHA256

            234060dd1c70dfa251200c8a35c082e93e19cac213cc78e4ee700f2858a71b79

            SHA512

            70c4e1b5504b0b2fa93271cacfb3d2ad391009610e85d3f5e36f1d6cf7d0f5ead7a252bdefb6ae4b3df76320f54064502fd9a0e17667e63d7f57bf2a082ddd95

          • \Users\Admin\AppData\Local\Temp\nso2530.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso2530.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2530.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2530.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2530.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4cf4dcdc6b19a0713e0f6bbb8a768dcb

            SHA1

            f717295fadd7b6294771a064be83601dd5fc0de1

            SHA256

            371caa4627a080c5e0cfe6c44fffd8695883a57820f82bf28caa5609fc91b011

            SHA512

            ecf66ea4dc10421bf08a37e7480593c6b7c9df3342b07809613e2aea53f5d86a6e5bd64479c1579bf450f96a6b5d271abb5abbcacbd04eb10bc8a5744d4914ce

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4cf4dcdc6b19a0713e0f6bbb8a768dcb

            SHA1

            f717295fadd7b6294771a064be83601dd5fc0de1

            SHA256

            371caa4627a080c5e0cfe6c44fffd8695883a57820f82bf28caa5609fc91b011

            SHA512

            ecf66ea4dc10421bf08a37e7480593c6b7c9df3342b07809613e2aea53f5d86a6e5bd64479c1579bf450f96a6b5d271abb5abbcacbd04eb10bc8a5744d4914ce

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4cf4dcdc6b19a0713e0f6bbb8a768dcb

            SHA1

            f717295fadd7b6294771a064be83601dd5fc0de1

            SHA256

            371caa4627a080c5e0cfe6c44fffd8695883a57820f82bf28caa5609fc91b011

            SHA512

            ecf66ea4dc10421bf08a37e7480593c6b7c9df3342b07809613e2aea53f5d86a6e5bd64479c1579bf450f96a6b5d271abb5abbcacbd04eb10bc8a5744d4914ce

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a504db38b1e33a4554b0cb148033403f

            SHA1

            3d0ff3cc08f04f2a5c39bce7da10f928d55c32d7

            SHA256

            cb33f31882bf1e73a95f50154c2e1277445c6e44560034525ebdbbda2054f162

            SHA512

            d8add0ccfbb07bec03615a7882ee2ba26bd988dc53590053af7782f196b010237ded13d290a9c6291ca142358159853211cbd0b52987d74e7ae780fb65f80968

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a504db38b1e33a4554b0cb148033403f

            SHA1

            3d0ff3cc08f04f2a5c39bce7da10f928d55c32d7

            SHA256

            cb33f31882bf1e73a95f50154c2e1277445c6e44560034525ebdbbda2054f162

            SHA512

            d8add0ccfbb07bec03615a7882ee2ba26bd988dc53590053af7782f196b010237ded13d290a9c6291ca142358159853211cbd0b52987d74e7ae780fb65f80968

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dc2ccfe9e40bee9df10880739d996ce1

            SHA1

            f352b42b803c9c43663fd35b27f176e87c012540

            SHA256

            13d6481944f8b207fb1a4d7144f3afdb517081d6632f36a1dee01b8adfe17bb2

            SHA512

            fa361e626d4eff23e723721fc3426cb07aa22d18fce794e8d4d9a3b1613865a68791a92e8f7fffa7779f2aff6d423cf36f7164812dd403828e58156e95bc746b

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4726e6f064dd9a496d74ec3255054b43

            SHA1

            739e41881873219068e89134a6f98748dc41121a

            SHA256

            1b658f040a9c3b0acc2ea986e626b3bac33b873f62b387450b5ef4c34862c3d9

            SHA512

            994bcef5999ca1339f86ffa4552d82ca8bb933006fab6b6f72d171cbff6354ca91820d04d86087f213294fdd5b9a4b59bc2eb2a9c6bca075bb095ec4a30d6e72

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            6ce0c88e6d697ff5545432a655f75fb2

            SHA1

            4c244c4bd2d7c286383d168626b148b682e2bafe

            SHA256

            234060dd1c70dfa251200c8a35c082e93e19cac213cc78e4ee700f2858a71b79

            SHA512

            70c4e1b5504b0b2fa93271cacfb3d2ad391009610e85d3f5e36f1d6cf7d0f5ead7a252bdefb6ae4b3df76320f54064502fd9a0e17667e63d7f57bf2a082ddd95

          • memory/880-87-0x0000000000000000-mapping.dmp

          • memory/956-64-0x0000000000000000-mapping.dmp

          • memory/1036-70-0x0000000000000000-mapping.dmp

          • memory/1140-81-0x0000000000000000-mapping.dmp

          • memory/1392-54-0x0000000075601000-0x0000000075603000-memory.dmp

            Filesize

            8KB

          • memory/1392-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1392-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1504-76-0x0000000000000000-mapping.dmp

          • memory/1748-58-0x0000000000000000-mapping.dmp

          • memory/1756-62-0x0000000000000000-mapping.dmp

          • memory/1768-61-0x0000000000000000-mapping.dmp

          • memory/1812-86-0x0000000000000000-mapping.dmp

          • memory/1828-57-0x0000000000000000-mapping.dmp

          • memory/1992-80-0x0000000000000000-mapping.dmp