Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

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

General

  • Target

    6d623298fd0d82f53af96f93d0b5d8e80a0ea172f0659de1c9a875f4b340b548.exe

  • Size

    602KB

  • MD5

    8d711f9fb405537026e03d65c171ac01

  • SHA1

    0520eee4c5788d9d2841bd1ad7bd5a93d4222504

  • SHA256

    6d623298fd0d82f53af96f93d0b5d8e80a0ea172f0659de1c9a875f4b340b548

  • SHA512

    2067cb5ef5d4d639f0b2d95106e87663b88648ea410a298b19e632f930c2e34005a4cfd5bd2c408ecbe1ab72334c9800f5e20f65fe3ef1c17f58a8c645668e20

  • SSDEEP

    12288:rIny5DYTWqQ4ZNJGk0QF1vGkj9q4zfXJHuQXaC8XS2/YSX0i86cc:TUTW94DkQF0kRq4zft/SXS2/YSe

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\6d623298fd0d82f53af96f93d0b5d8e80a0ea172f0659de1c9a875f4b340b548.exe
    "C:\Users\Admin\AppData\Local\Temp\6d623298fd0d82f53af96f93d0b5d8e80a0ea172f0659de1c9a875f4b340b548.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:584
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2028
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:856
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1736
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1084
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1140
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:564
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1792
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1192
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1404
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1684
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:280

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4931f23630983b8586dbabc1e68e21cd

            SHA1

            2ae68b503dde81a6d948a56d9ab706d432507b7c

            SHA256

            c3e3c0021aa452cad8a0dd13ab19863ae7b07155ddd5b0305559d50d5f60b265

            SHA512

            df7e582cdcc46f2d677d66f6e4c4bc7a0d677594c07e98034d6f256afb72783c1eb668b8e0ac84afb740782686da4830aad2a10cd5947cf327434778d1551988

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9979608a9661980395173ed07e964fd7

            SHA1

            d381dce2cd0ccf1cee8b72a882756c4e9e48cf0a

            SHA256

            5b1424eb2cde4120f7d8e5569c13b948d448be69372ab7ae621c5ad84fe272d2

            SHA512

            49d4b6ce16c4e5ddb6ba5b4b8b509b94c4fce61552963609703d339fdd83183119f8d41df54b3b147da6d9c7ac8dcdfe9661fe159f5533b4c78c6e7b0c7b7291

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8e40d16083676e9b89838e9cd30195c4

            SHA1

            9631fe286efbb135b7db035f88888adff839e292

            SHA256

            6f354de5014427d31aca475b6eb72774537d50deb003e6f1e805368e2a376f57

            SHA512

            86908685223780e82b5e788f0605fb3b28aa10ca2b52cc9ae84d28400abde5e630ba82dea08f26c9553a2e3a756e9bbf6d8c4f22af6c105c11d9246e73f17246

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b37d739662fd895e2eedca4bded0c551

            SHA1

            c157a8f3bae6e49cab3d29b8e3679db72f007b35

            SHA256

            595f366d07d88d4c67a07d0b6416661eb35a1a5e5a8be1160c124c66fdd21587

            SHA512

            ccdc4fb343d6a1fc3db49b81532e4a5add54a8c36e55cfd2725b2693382af1dcaefccb56fc2876b2a52ee4fd17734b373c3b253f124629083c65964a75b91229

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b37d739662fd895e2eedca4bded0c551

            SHA1

            c157a8f3bae6e49cab3d29b8e3679db72f007b35

            SHA256

            595f366d07d88d4c67a07d0b6416661eb35a1a5e5a8be1160c124c66fdd21587

            SHA512

            ccdc4fb343d6a1fc3db49b81532e4a5add54a8c36e55cfd2725b2693382af1dcaefccb56fc2876b2a52ee4fd17734b373c3b253f124629083c65964a75b91229

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae96ddd90a9cdb65392f28181b97f49e

            SHA1

            1690d07ba5bba5befee76140ce4b29f62edee8ba

            SHA256

            6a737f4ba957f36080b22a271fd97b7b9ba2eb57ccbcb2a6dea33bad07b04a8f

            SHA512

            f1de4b57008d8441a2fdfefc5b7d0fff073f18b4a6a6eee0b89024b3d35ed98aa22a5025c9cc34d13ca39da494c0bdcad92268dfe4fd25d09860a031260825f9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae96ddd90a9cdb65392f28181b97f49e

            SHA1

            1690d07ba5bba5befee76140ce4b29f62edee8ba

            SHA256

            6a737f4ba957f36080b22a271fd97b7b9ba2eb57ccbcb2a6dea33bad07b04a8f

            SHA512

            f1de4b57008d8441a2fdfefc5b7d0fff073f18b4a6a6eee0b89024b3d35ed98aa22a5025c9cc34d13ca39da494c0bdcad92268dfe4fd25d09860a031260825f9

          • \Users\Admin\AppData\Local\Temp\nsoE6BA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoE6BA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoE6BA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoE6BA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoE6BA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4931f23630983b8586dbabc1e68e21cd

            SHA1

            2ae68b503dde81a6d948a56d9ab706d432507b7c

            SHA256

            c3e3c0021aa452cad8a0dd13ab19863ae7b07155ddd5b0305559d50d5f60b265

            SHA512

            df7e582cdcc46f2d677d66f6e4c4bc7a0d677594c07e98034d6f256afb72783c1eb668b8e0ac84afb740782686da4830aad2a10cd5947cf327434778d1551988

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4931f23630983b8586dbabc1e68e21cd

            SHA1

            2ae68b503dde81a6d948a56d9ab706d432507b7c

            SHA256

            c3e3c0021aa452cad8a0dd13ab19863ae7b07155ddd5b0305559d50d5f60b265

            SHA512

            df7e582cdcc46f2d677d66f6e4c4bc7a0d677594c07e98034d6f256afb72783c1eb668b8e0ac84afb740782686da4830aad2a10cd5947cf327434778d1551988

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4931f23630983b8586dbabc1e68e21cd

            SHA1

            2ae68b503dde81a6d948a56d9ab706d432507b7c

            SHA256

            c3e3c0021aa452cad8a0dd13ab19863ae7b07155ddd5b0305559d50d5f60b265

            SHA512

            df7e582cdcc46f2d677d66f6e4c4bc7a0d677594c07e98034d6f256afb72783c1eb668b8e0ac84afb740782686da4830aad2a10cd5947cf327434778d1551988

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9979608a9661980395173ed07e964fd7

            SHA1

            d381dce2cd0ccf1cee8b72a882756c4e9e48cf0a

            SHA256

            5b1424eb2cde4120f7d8e5569c13b948d448be69372ab7ae621c5ad84fe272d2

            SHA512

            49d4b6ce16c4e5ddb6ba5b4b8b509b94c4fce61552963609703d339fdd83183119f8d41df54b3b147da6d9c7ac8dcdfe9661fe159f5533b4c78c6e7b0c7b7291

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9979608a9661980395173ed07e964fd7

            SHA1

            d381dce2cd0ccf1cee8b72a882756c4e9e48cf0a

            SHA256

            5b1424eb2cde4120f7d8e5569c13b948d448be69372ab7ae621c5ad84fe272d2

            SHA512

            49d4b6ce16c4e5ddb6ba5b4b8b509b94c4fce61552963609703d339fdd83183119f8d41df54b3b147da6d9c7ac8dcdfe9661fe159f5533b4c78c6e7b0c7b7291

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8e40d16083676e9b89838e9cd30195c4

            SHA1

            9631fe286efbb135b7db035f88888adff839e292

            SHA256

            6f354de5014427d31aca475b6eb72774537d50deb003e6f1e805368e2a376f57

            SHA512

            86908685223780e82b5e788f0605fb3b28aa10ca2b52cc9ae84d28400abde5e630ba82dea08f26c9553a2e3a756e9bbf6d8c4f22af6c105c11d9246e73f17246

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b37d739662fd895e2eedca4bded0c551

            SHA1

            c157a8f3bae6e49cab3d29b8e3679db72f007b35

            SHA256

            595f366d07d88d4c67a07d0b6416661eb35a1a5e5a8be1160c124c66fdd21587

            SHA512

            ccdc4fb343d6a1fc3db49b81532e4a5add54a8c36e55cfd2725b2693382af1dcaefccb56fc2876b2a52ee4fd17734b373c3b253f124629083c65964a75b91229

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ae96ddd90a9cdb65392f28181b97f49e

            SHA1

            1690d07ba5bba5befee76140ce4b29f62edee8ba

            SHA256

            6a737f4ba957f36080b22a271fd97b7b9ba2eb57ccbcb2a6dea33bad07b04a8f

            SHA512

            f1de4b57008d8441a2fdfefc5b7d0fff073f18b4a6a6eee0b89024b3d35ed98aa22a5025c9cc34d13ca39da494c0bdcad92268dfe4fd25d09860a031260825f9

          • memory/564-81-0x0000000000000000-mapping.dmp

          • memory/584-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/584-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/584-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/584-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

            Filesize

            8KB

          • memory/856-61-0x0000000000000000-mapping.dmp

          • memory/916-60-0x0000000000000000-mapping.dmp

          • memory/1084-71-0x0000000000000000-mapping.dmp

          • memory/1140-77-0x0000000000000000-mapping.dmp

          • memory/1192-87-0x0000000000000000-mapping.dmp

          • memory/1404-88-0x0000000000000000-mapping.dmp

          • memory/1492-57-0x0000000000000000-mapping.dmp

          • memory/1736-64-0x0000000000000000-mapping.dmp

          • memory/1792-82-0x0000000000000000-mapping.dmp

          • memory/2028-58-0x0000000000000000-mapping.dmp