Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:51

General

  • Target

    e4085bf8fe37ee40233a53b33a5eb6c30573f5a9819943dd6c2c8dc0b830230f.exe

  • Size

    445KB

  • MD5

    27743a3fe9f75883752922893cc818cf

  • SHA1

    aac546157ffb9c090ba969ddbf3890fff701b40d

  • SHA256

    e4085bf8fe37ee40233a53b33a5eb6c30573f5a9819943dd6c2c8dc0b830230f

  • SHA512

    7cea23b48d7e4e755e0a374d1992c1dcf965fc52f53e349333a3cede5b2091f7e2c85abc878b8bb29d29191b3fd4a7625ad4cda36b234c3f2b949e7a5225bc2f

  • SSDEEP

    12288:FdPHanX/XgNqqY/be3G/QZMJBZDDRiM+lX0i:FdPHanvgNqqQe3WZDM5b

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\e4085bf8fe37ee40233a53b33a5eb6c30573f5a9819943dd6c2c8dc0b830230f.exe
    "C:\Users\Admin\AppData\Local\Temp\e4085bf8fe37ee40233a53b33a5eb6c30573f5a9819943dd6c2c8dc0b830230f.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:3008
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4968
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4928
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2828
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4300
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:892
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5016
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4832
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:444
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2336
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1380
          • 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:2772
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3620

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq6410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            23b8f1debce258fb51a289ebed1aef95

            SHA1

            7d30c6a1e9f8914b3f65da70990ef66858bc7b07

            SHA256

            2d3aeab96a34ec8aa376ea27bfc66a8d8beb4cfc50f0621b36c3bcf9461ce144

            SHA512

            46d1c1023a7361e10ea6a701df9b2f75634dbac61f7d97698b02da5130c9c0e66c6e64899d76ba5a7c345be1ed5662f515e9adb83f2ecc9215e865c1361687b4

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

            106KB

            MD5

            23b8f1debce258fb51a289ebed1aef95

            SHA1

            7d30c6a1e9f8914b3f65da70990ef66858bc7b07

            SHA256

            2d3aeab96a34ec8aa376ea27bfc66a8d8beb4cfc50f0621b36c3bcf9461ce144

            SHA512

            46d1c1023a7361e10ea6a701df9b2f75634dbac61f7d97698b02da5130c9c0e66c6e64899d76ba5a7c345be1ed5662f515e9adb83f2ecc9215e865c1361687b4

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

            106KB

            MD5

            23b8f1debce258fb51a289ebed1aef95

            SHA1

            7d30c6a1e9f8914b3f65da70990ef66858bc7b07

            SHA256

            2d3aeab96a34ec8aa376ea27bfc66a8d8beb4cfc50f0621b36c3bcf9461ce144

            SHA512

            46d1c1023a7361e10ea6a701df9b2f75634dbac61f7d97698b02da5130c9c0e66c6e64899d76ba5a7c345be1ed5662f515e9adb83f2ecc9215e865c1361687b4

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

            106KB

            MD5

            23b8f1debce258fb51a289ebed1aef95

            SHA1

            7d30c6a1e9f8914b3f65da70990ef66858bc7b07

            SHA256

            2d3aeab96a34ec8aa376ea27bfc66a8d8beb4cfc50f0621b36c3bcf9461ce144

            SHA512

            46d1c1023a7361e10ea6a701df9b2f75634dbac61f7d97698b02da5130c9c0e66c6e64899d76ba5a7c345be1ed5662f515e9adb83f2ecc9215e865c1361687b4

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

            241KB

            MD5

            4d964730914ff1a93a07b1856301f4a1

            SHA1

            fc21c50f95e1feba9bc0654d83c81b79e256d973

            SHA256

            e6d57d7e01654d7f8cc3325e18c9b4c97f3050d3fb05bc6299f38bc608c3671b

            SHA512

            387640458a3976a9f68bdc8628ca5f45a0ed2e7fcde5777606871150b57b2b8f83bb22660b3f21bf41a1a64aa83a308b26a7f91af16715ae3b5b8e2eabb39e12

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

            241KB

            MD5

            4d964730914ff1a93a07b1856301f4a1

            SHA1

            fc21c50f95e1feba9bc0654d83c81b79e256d973

            SHA256

            e6d57d7e01654d7f8cc3325e18c9b4c97f3050d3fb05bc6299f38bc608c3671b

            SHA512

            387640458a3976a9f68bdc8628ca5f45a0ed2e7fcde5777606871150b57b2b8f83bb22660b3f21bf41a1a64aa83a308b26a7f91af16715ae3b5b8e2eabb39e12

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

            241KB

            MD5

            4d964730914ff1a93a07b1856301f4a1

            SHA1

            fc21c50f95e1feba9bc0654d83c81b79e256d973

            SHA256

            e6d57d7e01654d7f8cc3325e18c9b4c97f3050d3fb05bc6299f38bc608c3671b

            SHA512

            387640458a3976a9f68bdc8628ca5f45a0ed2e7fcde5777606871150b57b2b8f83bb22660b3f21bf41a1a64aa83a308b26a7f91af16715ae3b5b8e2eabb39e12

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

            108KB

            MD5

            484b120fb671d578384d1c8562fe6e26

            SHA1

            d5d8a9a187772aee93fa3f60d225f5e6876e8f9a

            SHA256

            8a7eb03773d35c1f821413e3fbe65ca8c588d3cec8e419ba8ee0c9cb713136e8

            SHA512

            e6be01fcf24710a269f82d5001c2e2b74b802f63c045ff7dffc90deadc9c4d655ba98c6a03bf03bf959bf6ca751aaa20060e6b63c4295fb1f01322037ae8d116

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

            108KB

            MD5

            484b120fb671d578384d1c8562fe6e26

            SHA1

            d5d8a9a187772aee93fa3f60d225f5e6876e8f9a

            SHA256

            8a7eb03773d35c1f821413e3fbe65ca8c588d3cec8e419ba8ee0c9cb713136e8

            SHA512

            e6be01fcf24710a269f82d5001c2e2b74b802f63c045ff7dffc90deadc9c4d655ba98c6a03bf03bf959bf6ca751aaa20060e6b63c4295fb1f01322037ae8d116

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

            176KB

            MD5

            e4d2486d2ffc2c22bbbdf2de86712834

            SHA1

            7672b57e7f2b040ee20dd2efe5f35fc528362c0b

            SHA256

            52aaae3be1f4a3b138b1fe00a34389da6eb2e5b363b0ad2d48b48472d4e36525

            SHA512

            2e3f440302fa4d7114db15f22dd5b482bf187f813f20c91ee092d8186efec59c013596076bcccf1f5f836c2c84514cf77317ff71083bc5752f72381b25769d5c

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

            176KB

            MD5

            e4d2486d2ffc2c22bbbdf2de86712834

            SHA1

            7672b57e7f2b040ee20dd2efe5f35fc528362c0b

            SHA256

            52aaae3be1f4a3b138b1fe00a34389da6eb2e5b363b0ad2d48b48472d4e36525

            SHA512

            2e3f440302fa4d7114db15f22dd5b482bf187f813f20c91ee092d8186efec59c013596076bcccf1f5f836c2c84514cf77317ff71083bc5752f72381b25769d5c

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

            176KB

            MD5

            e4d2486d2ffc2c22bbbdf2de86712834

            SHA1

            7672b57e7f2b040ee20dd2efe5f35fc528362c0b

            SHA256

            52aaae3be1f4a3b138b1fe00a34389da6eb2e5b363b0ad2d48b48472d4e36525

            SHA512

            2e3f440302fa4d7114db15f22dd5b482bf187f813f20c91ee092d8186efec59c013596076bcccf1f5f836c2c84514cf77317ff71083bc5752f72381b25769d5c

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

            158KB

            MD5

            cec151c550fd3e280f4df1facf00e648

            SHA1

            9cd4f1b43f2f319fbee0bd582d27f593f6c3c2b0

            SHA256

            e3289b691ae383c8acec93f7e04e0af1980624b7e9df87bab8964b9418cf59d3

            SHA512

            10dbab26ac399d0502a74e2429d45edbe0b72dea67a08f098438ba97b354ef0824b458a8b6ec649e97a3949de7832daddbe55b5dc93d7e038ab36131652d810b

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

            158KB

            MD5

            cec151c550fd3e280f4df1facf00e648

            SHA1

            9cd4f1b43f2f319fbee0bd582d27f593f6c3c2b0

            SHA256

            e3289b691ae383c8acec93f7e04e0af1980624b7e9df87bab8964b9418cf59d3

            SHA512

            10dbab26ac399d0502a74e2429d45edbe0b72dea67a08f098438ba97b354ef0824b458a8b6ec649e97a3949de7832daddbe55b5dc93d7e038ab36131652d810b

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

            158KB

            MD5

            cec151c550fd3e280f4df1facf00e648

            SHA1

            9cd4f1b43f2f319fbee0bd582d27f593f6c3c2b0

            SHA256

            e3289b691ae383c8acec93f7e04e0af1980624b7e9df87bab8964b9418cf59d3

            SHA512

            10dbab26ac399d0502a74e2429d45edbe0b72dea67a08f098438ba97b354ef0824b458a8b6ec649e97a3949de7832daddbe55b5dc93d7e038ab36131652d810b

          • memory/444-158-0x0000000000000000-mapping.dmp
          • memory/892-146-0x0000000000000000-mapping.dmp
          • memory/1380-165-0x0000000000000000-mapping.dmp
          • memory/1824-135-0x0000000000000000-mapping.dmp
          • memory/2336-164-0x0000000000000000-mapping.dmp
          • memory/2828-140-0x0000000000000000-mapping.dmp
          • memory/4300-141-0x0000000000000000-mapping.dmp
          • memory/4832-157-0x0000000000000000-mapping.dmp
          • memory/4928-139-0x0000000000000000-mapping.dmp
          • memory/4968-136-0x0000000000000000-mapping.dmp
          • memory/5016-152-0x0000000000000000-mapping.dmp