Analysis

  • max time kernel
    31s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 14:07

General

  • Target

    2e6778856f7c4a444db1af45bddd9522296c1896fb8d04c4ca8512f2b0d41981.exe

  • Size

    831KB

  • MD5

    ae8fdd6debd0fce5a153e0c816d08cea

  • SHA1

    32cb552920d0cbf2b3dc08b166120f5730421394

  • SHA256

    2e6778856f7c4a444db1af45bddd9522296c1896fb8d04c4ca8512f2b0d41981

  • SHA512

    c0169acd7642dcf337733e7f08a63279a32cc170b6cbeb8cd6a0856deacdf91adcf95e116f8b3bf763c77b8205b1c09fed3bbb563f1c0deb1659f987eab395c0

  • SSDEEP

    24576:1rfGR2wDeRMTa/IilvttO1BB/GOXxmHB8EF:1YYRMTabFtO1BB/G++B8

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\2e6778856f7c4a444db1af45bddd9522296c1896fb8d04c4ca8512f2b0d41981.exe
    "C:\Users\Admin\AppData\Local\Temp\2e6778856f7c4a444db1af45bddd9522296c1896fb8d04c4ca8512f2b0d41981.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:1348
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1312
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:736
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:960
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1800
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1028
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1604
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1480
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1724
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1844
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1644
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:804

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6b950cad96707fd21ad3bf5f62f565eb

            SHA1

            d50ef4c793cceed89c023c6990dde417de13ecb1

            SHA256

            7cecc0ea51cd7a56c717b157803c9aa36f8cb29f0b6f71384266cde3e7b1925e

            SHA512

            27bd18bab047085c9c25f561ed05a32ef57a121369d5edb30395cb9ce3e0ea83f6d276c5cb8c3b8eb1d9ca6fc9ba6784bb12681c5d56c1f5d2b73f478b8513b9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            428KB

            MD5

            0fc3a15f026bc83b992548dfd6a557ff

            SHA1

            fd3fc548ac639ec34266088e4fa9eca27d92ef46

            SHA256

            1805046e2b4065f4b2eed5e984a8bee04262b798e97ff6c290a8152615208f09

            SHA512

            88bc5118d0d474c51d8c34de4c7bf44da90e66d27bd4f24668a0afe8223a195b54dc8282717f3233ce89f80b3eacc2bc59e7cf5881a0c9ac4eb53a9edfc7a8f5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            a5b30c984230b9ac0b762b37a1b7ca5c

            SHA1

            6b62de6f1ecc3ec459337d1cbd984550c49fea92

            SHA256

            204a48ccfdd399ed83faa2ed98b62cfa44c413c0de88d2e4e6dd86fd4aaa2a69

            SHA512

            c80ba5dd54b3665a3b1dd7d08d4f769c1a666e4ce0ca349aabef5bc32375638d7b1040d4117677e2c0f1c983dd4e38e38263228daa4d3355a208d97167efca67

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            4690b00116e377b9bb12e02b00c335de

            SHA1

            10ee7783b2cfd7cfa0e0d79342063210b04482e6

            SHA256

            6c9488d82573956f8abedf51c94dd6abd31b4448142c55dc949e23c121c2bf19

            SHA512

            3e04b63762b21aa6b66bd3fb2b17941467699986f537495afe20667486e300a6ab8b0ebb8f42e8fe720075d0644b7d4b0cd3fe24f54432ad7f128784f936321a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            4690b00116e377b9bb12e02b00c335de

            SHA1

            10ee7783b2cfd7cfa0e0d79342063210b04482e6

            SHA256

            6c9488d82573956f8abedf51c94dd6abd31b4448142c55dc949e23c121c2bf19

            SHA512

            3e04b63762b21aa6b66bd3fb2b17941467699986f537495afe20667486e300a6ab8b0ebb8f42e8fe720075d0644b7d4b0cd3fe24f54432ad7f128784f936321a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            b6e634edd5ac8e336eba6b82952b7d46

            SHA1

            a2c643b0227daf5c0d1d700dbd6aad5f117fd782

            SHA256

            26c016e061a337e0deec4fc798f950ed324ec5a27a321cb33fd32623dc6cbe48

            SHA512

            33fcbc917ce92fa96b9407ba6c927260c45b2638aab47e69f2dc850adc1508bd1fb2379dc31e863ee4c9e154ce3f4994b5c04e773a21acc0576a978d3f9a92bb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            b6e634edd5ac8e336eba6b82952b7d46

            SHA1

            a2c643b0227daf5c0d1d700dbd6aad5f117fd782

            SHA256

            26c016e061a337e0deec4fc798f950ed324ec5a27a321cb33fd32623dc6cbe48

            SHA512

            33fcbc917ce92fa96b9407ba6c927260c45b2638aab47e69f2dc850adc1508bd1fb2379dc31e863ee4c9e154ce3f4994b5c04e773a21acc0576a978d3f9a92bb

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6b950cad96707fd21ad3bf5f62f565eb

            SHA1

            d50ef4c793cceed89c023c6990dde417de13ecb1

            SHA256

            7cecc0ea51cd7a56c717b157803c9aa36f8cb29f0b6f71384266cde3e7b1925e

            SHA512

            27bd18bab047085c9c25f561ed05a32ef57a121369d5edb30395cb9ce3e0ea83f6d276c5cb8c3b8eb1d9ca6fc9ba6784bb12681c5d56c1f5d2b73f478b8513b9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6b950cad96707fd21ad3bf5f62f565eb

            SHA1

            d50ef4c793cceed89c023c6990dde417de13ecb1

            SHA256

            7cecc0ea51cd7a56c717b157803c9aa36f8cb29f0b6f71384266cde3e7b1925e

            SHA512

            27bd18bab047085c9c25f561ed05a32ef57a121369d5edb30395cb9ce3e0ea83f6d276c5cb8c3b8eb1d9ca6fc9ba6784bb12681c5d56c1f5d2b73f478b8513b9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6b950cad96707fd21ad3bf5f62f565eb

            SHA1

            d50ef4c793cceed89c023c6990dde417de13ecb1

            SHA256

            7cecc0ea51cd7a56c717b157803c9aa36f8cb29f0b6f71384266cde3e7b1925e

            SHA512

            27bd18bab047085c9c25f561ed05a32ef57a121369d5edb30395cb9ce3e0ea83f6d276c5cb8c3b8eb1d9ca6fc9ba6784bb12681c5d56c1f5d2b73f478b8513b9

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            428KB

            MD5

            0fc3a15f026bc83b992548dfd6a557ff

            SHA1

            fd3fc548ac639ec34266088e4fa9eca27d92ef46

            SHA256

            1805046e2b4065f4b2eed5e984a8bee04262b798e97ff6c290a8152615208f09

            SHA512

            88bc5118d0d474c51d8c34de4c7bf44da90e66d27bd4f24668a0afe8223a195b54dc8282717f3233ce89f80b3eacc2bc59e7cf5881a0c9ac4eb53a9edfc7a8f5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            428KB

            MD5

            0fc3a15f026bc83b992548dfd6a557ff

            SHA1

            fd3fc548ac639ec34266088e4fa9eca27d92ef46

            SHA256

            1805046e2b4065f4b2eed5e984a8bee04262b798e97ff6c290a8152615208f09

            SHA512

            88bc5118d0d474c51d8c34de4c7bf44da90e66d27bd4f24668a0afe8223a195b54dc8282717f3233ce89f80b3eacc2bc59e7cf5881a0c9ac4eb53a9edfc7a8f5

          • \Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            a5b30c984230b9ac0b762b37a1b7ca5c

            SHA1

            6b62de6f1ecc3ec459337d1cbd984550c49fea92

            SHA256

            204a48ccfdd399ed83faa2ed98b62cfa44c413c0de88d2e4e6dd86fd4aaa2a69

            SHA512

            c80ba5dd54b3665a3b1dd7d08d4f769c1a666e4ce0ca349aabef5bc32375638d7b1040d4117677e2c0f1c983dd4e38e38263228daa4d3355a208d97167efca67

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            4690b00116e377b9bb12e02b00c335de

            SHA1

            10ee7783b2cfd7cfa0e0d79342063210b04482e6

            SHA256

            6c9488d82573956f8abedf51c94dd6abd31b4448142c55dc949e23c121c2bf19

            SHA512

            3e04b63762b21aa6b66bd3fb2b17941467699986f537495afe20667486e300a6ab8b0ebb8f42e8fe720075d0644b7d4b0cd3fe24f54432ad7f128784f936321a

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            b6e634edd5ac8e336eba6b82952b7d46

            SHA1

            a2c643b0227daf5c0d1d700dbd6aad5f117fd782

            SHA256

            26c016e061a337e0deec4fc798f950ed324ec5a27a321cb33fd32623dc6cbe48

            SHA512

            33fcbc917ce92fa96b9407ba6c927260c45b2638aab47e69f2dc850adc1508bd1fb2379dc31e863ee4c9e154ce3f4994b5c04e773a21acc0576a978d3f9a92bb

          • memory/1348-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

            Filesize

            8KB

          • memory/1348-69-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/1348-55-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/1348-91-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB