Analysis

  • max time kernel
    40s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 14:13

General

  • Target

    93f28b6e8d34555c3f36d18483145a5fd70c0209dfdd23267783aad6798265ad.exe

  • Size

    561KB

  • MD5

    0808dabeb15c92ce7fdc7f38c029b5e0

  • SHA1

    2cfa71561ef16c2c8156056ddf155933826456bc

  • SHA256

    93f28b6e8d34555c3f36d18483145a5fd70c0209dfdd23267783aad6798265ad

  • SHA512

    1e0b5eadb647d33c53730fde88aa66cec3062ccacbcfd894f00587a47287ee24f3f732f27779df1acfd7581da2e0f42ba231f3f7dbac74be7c167ef5fad13bb9

  • SSDEEP

    12288:cPRYzebfyC1wIBO8oZZbMGnpt6EusuGWbDw84MSFZ:tzyftwiO8o0GrNuGWXm

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\93f28b6e8d34555c3f36d18483145a5fd70c0209dfdd23267783aad6798265ad.exe
    "C:\Users\Admin\AppData\Local\Temp\93f28b6e8d34555c3f36d18483145a5fd70c0209dfdd23267783aad6798265ad.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:1116
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1476
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1560
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1308
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:824
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1864
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1108
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1752
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:664
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:852

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f76341f7b02439f5535cb3a1ab692240

            SHA1

            352d584336f3929c3ffe5085bf0c8e945c3ebc61

            SHA256

            872da3d6e9435c092ef2f3008b2e595848f89f3771b77f0a32db62773be534f0

            SHA512

            96df349d9d99d89c9a27595892438988f8d1a4183cf67aa82d3f953c41af18d630cbde462e041532460ef566264ec6210b1c2d49806065b04c4fed5ac4bf7843

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dc2f914e92fa33dc545e505e94b6f608

            SHA1

            7b4dd418f2a8dd17f67c9254d727bf2b242d0246

            SHA256

            914b51a085ce10a042f593cc1557184bcf2f2a1a6a3c88b61ee2e2ec0c2a4f0d

            SHA512

            7e241acb63bbfa5ce585ee9f99199771f5bfb846d622556fce3b6a2acb2bd07ca314ee1d6afc100a82f29446dc98e0e5a0290f3e43261e51de561790af2f72a6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            20b6c5df46f4a5e3e468b65f949c5afc

            SHA1

            a4909fabd9a277e7d16ad23b5161355fc3a92d19

            SHA256

            316951f566f790f9652eabe3f839f6a6fe03d750e31c97b05ef06a97423ac386

            SHA512

            2b08d3e47db37751a0826dfbe0bb824f25b4b11f5f5d0aa3c54eea001ca4069c8ea0c67cd2a21678913363cac8ff740b27addabf43203a97c2509922364eb9db

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2bd240160374ba795e2cd6e6d80d250c

            SHA1

            16ddd1ad17ab2c8d0c3f2100d421363b8e8d600d

            SHA256

            6fcfa29db928cca9cccb3121f082ac4087fd7c25ca0e20d3cc6b0e42b12a5a2b

            SHA512

            4b7140aab72126ff6a6b2bc79ef9e3063130b56b559098005764726ce2ff37a9a103ad4ae4f0ed6818a614a764eb3beec30522ca9b2dde0dd15c4617e5933bae

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2bd240160374ba795e2cd6e6d80d250c

            SHA1

            16ddd1ad17ab2c8d0c3f2100d421363b8e8d600d

            SHA256

            6fcfa29db928cca9cccb3121f082ac4087fd7c25ca0e20d3cc6b0e42b12a5a2b

            SHA512

            4b7140aab72126ff6a6b2bc79ef9e3063130b56b559098005764726ce2ff37a9a103ad4ae4f0ed6818a614a764eb3beec30522ca9b2dde0dd15c4617e5933bae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7c87bf0f39b1615da9be61c4497b1e0

            SHA1

            251aab11207467b0dd833834d55762fa20d1f4b5

            SHA256

            fb423398f9235e10a4e1f6f60e4ff4cded51e8f6384d15b2fb1d57be2af3dd75

            SHA512

            fd8662ac286e11fa95cd41ce9cf259ae502e88b78998c839106f147dafcd5f0a8a28d2cc51d22559f79885c7d9257f1c8e79dbf2e6515f5a97fbaf6ad9ea70e8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7c87bf0f39b1615da9be61c4497b1e0

            SHA1

            251aab11207467b0dd833834d55762fa20d1f4b5

            SHA256

            fb423398f9235e10a4e1f6f60e4ff4cded51e8f6384d15b2fb1d57be2af3dd75

            SHA512

            fd8662ac286e11fa95cd41ce9cf259ae502e88b78998c839106f147dafcd5f0a8a28d2cc51d22559f79885c7d9257f1c8e79dbf2e6515f5a97fbaf6ad9ea70e8

          • \Users\Admin\AppData\Local\Temp\nsj4FB9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj4FB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj4FB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj4FB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj4FB9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f76341f7b02439f5535cb3a1ab692240

            SHA1

            352d584336f3929c3ffe5085bf0c8e945c3ebc61

            SHA256

            872da3d6e9435c092ef2f3008b2e595848f89f3771b77f0a32db62773be534f0

            SHA512

            96df349d9d99d89c9a27595892438988f8d1a4183cf67aa82d3f953c41af18d630cbde462e041532460ef566264ec6210b1c2d49806065b04c4fed5ac4bf7843

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f76341f7b02439f5535cb3a1ab692240

            SHA1

            352d584336f3929c3ffe5085bf0c8e945c3ebc61

            SHA256

            872da3d6e9435c092ef2f3008b2e595848f89f3771b77f0a32db62773be534f0

            SHA512

            96df349d9d99d89c9a27595892438988f8d1a4183cf67aa82d3f953c41af18d630cbde462e041532460ef566264ec6210b1c2d49806065b04c4fed5ac4bf7843

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f76341f7b02439f5535cb3a1ab692240

            SHA1

            352d584336f3929c3ffe5085bf0c8e945c3ebc61

            SHA256

            872da3d6e9435c092ef2f3008b2e595848f89f3771b77f0a32db62773be534f0

            SHA512

            96df349d9d99d89c9a27595892438988f8d1a4183cf67aa82d3f953c41af18d630cbde462e041532460ef566264ec6210b1c2d49806065b04c4fed5ac4bf7843

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dc2f914e92fa33dc545e505e94b6f608

            SHA1

            7b4dd418f2a8dd17f67c9254d727bf2b242d0246

            SHA256

            914b51a085ce10a042f593cc1557184bcf2f2a1a6a3c88b61ee2e2ec0c2a4f0d

            SHA512

            7e241acb63bbfa5ce585ee9f99199771f5bfb846d622556fce3b6a2acb2bd07ca314ee1d6afc100a82f29446dc98e0e5a0290f3e43261e51de561790af2f72a6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dc2f914e92fa33dc545e505e94b6f608

            SHA1

            7b4dd418f2a8dd17f67c9254d727bf2b242d0246

            SHA256

            914b51a085ce10a042f593cc1557184bcf2f2a1a6a3c88b61ee2e2ec0c2a4f0d

            SHA512

            7e241acb63bbfa5ce585ee9f99199771f5bfb846d622556fce3b6a2acb2bd07ca314ee1d6afc100a82f29446dc98e0e5a0290f3e43261e51de561790af2f72a6

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            20b6c5df46f4a5e3e468b65f949c5afc

            SHA1

            a4909fabd9a277e7d16ad23b5161355fc3a92d19

            SHA256

            316951f566f790f9652eabe3f839f6a6fe03d750e31c97b05ef06a97423ac386

            SHA512

            2b08d3e47db37751a0826dfbe0bb824f25b4b11f5f5d0aa3c54eea001ca4069c8ea0c67cd2a21678913363cac8ff740b27addabf43203a97c2509922364eb9db

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2bd240160374ba795e2cd6e6d80d250c

            SHA1

            16ddd1ad17ab2c8d0c3f2100d421363b8e8d600d

            SHA256

            6fcfa29db928cca9cccb3121f082ac4087fd7c25ca0e20d3cc6b0e42b12a5a2b

            SHA512

            4b7140aab72126ff6a6b2bc79ef9e3063130b56b559098005764726ce2ff37a9a103ad4ae4f0ed6818a614a764eb3beec30522ca9b2dde0dd15c4617e5933bae

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c7c87bf0f39b1615da9be61c4497b1e0

            SHA1

            251aab11207467b0dd833834d55762fa20d1f4b5

            SHA256

            fb423398f9235e10a4e1f6f60e4ff4cded51e8f6384d15b2fb1d57be2af3dd75

            SHA512

            fd8662ac286e11fa95cd41ce9cf259ae502e88b78998c839106f147dafcd5f0a8a28d2cc51d22559f79885c7d9257f1c8e79dbf2e6515f5a97fbaf6ad9ea70e8

          • memory/664-87-0x0000000000000000-mapping.dmp

          • memory/824-70-0x0000000000000000-mapping.dmp

          • memory/1108-81-0x0000000000000000-mapping.dmp

          • memory/1116-54-0x0000000076681000-0x0000000076683000-memory.dmp

            Filesize

            8KB

          • memory/1116-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1116-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1308-64-0x0000000000000000-mapping.dmp

          • memory/1476-59-0x0000000000000000-mapping.dmp

          • memory/1548-61-0x0000000000000000-mapping.dmp

          • memory/1560-62-0x0000000000000000-mapping.dmp

          • memory/1676-58-0x0000000000000000-mapping.dmp

          • memory/1752-86-0x0000000000000000-mapping.dmp

          • memory/1864-76-0x0000000000000000-mapping.dmp

          • memory/1972-80-0x0000000000000000-mapping.dmp