Analysis

  • max time kernel
    26s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:29

General

  • Target

    36012605006d34fe8fd37f035804df883c7709033259b57a0ab4300899f33e1b.exe

  • Size

    603KB

  • MD5

    43cb6348fe518891a429cdec0fa10120

  • SHA1

    d4be8e2953d3309b83717ffb0e770fa9f014691e

  • SHA256

    36012605006d34fe8fd37f035804df883c7709033259b57a0ab4300899f33e1b

  • SHA512

    418ad51b781410862979782a9fa3d8e281b6c48be35b3de799a3b75e47d4621b8c07f750a64d58475b19d4a721430ba86bdf19fa8ae90d03055bad601cfc3598

  • SSDEEP

    12288:mIny5DYTgl/8RAoX0ZHv4EmKoXBrajH+KCl+y4tT:IUTgl/8RAoUAuoXBeNCAld

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\36012605006d34fe8fd37f035804df883c7709033259b57a0ab4300899f33e1b.exe
    "C:\Users\Admin\AppData\Local\Temp\36012605006d34fe8fd37f035804df883c7709033259b57a0ab4300899f33e1b.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:1980
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1564
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1208
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1816
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1380
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:784
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1344
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1280
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:748
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:296
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1516
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1736
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1520

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d5bdcc072396bf5ceebb8b5a713bdd61

            SHA1

            78bbc168d7942546edf6c1d8c2f87bc423ca6fb2

            SHA256

            e5f2d5681418610e3b8d6b4fef10aa114ae4483714cf9d9552e1d4b25df0d60d

            SHA512

            a666082e3b7c184c2b7fd423b71b048ecba4b18f6b483dab3ea783aa973b71d6ed64667d0d68aadced7547113c0bb5ed2a9621d9205708e849b601a6fc5ea2e1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ae1047d1c4ab6beeb60a862639b414a4

            SHA1

            c00a973fa88560637418bc40437442bf4a1d67ca

            SHA256

            43eb587b8c323d52aa531fd376278c9ad28975c2c55ccbdd7d7481067f4e6669

            SHA512

            9705e3e11bdfc64763dbe5002441ba13e735ac7767e8ed810e6fffe35ebd2c2e3a3c8a2c5a1c1754fec1c606afe7978544f5f680f737b9930e5bc03e43640427

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8a4b14fe79e4a7f2ba09d8a404d3ebfc

            SHA1

            429a50b2c3266f4c254ddda224cf5f4062dcaed0

            SHA256

            c267b70e277c99d3951ff405350e3387d9c62f12dd7fa759073a4200d19057ef

            SHA512

            3b94a8464d60658504bfdc197a827e2d041dbac4d093c2db42a8c3a8870253c0697ef0fe1ec38f09101b4b1b428c57cd1e7e6fe8182bee5208e0993751de8518

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2b16e2fb8319e1cab8c88e6b847bb715

            SHA1

            8987c135804db1310af0586ac5a4c32285676e93

            SHA256

            a6d4d86ee1ee6a3dc5d1976b580b4ab2f66b10365997ed5e7b941aa868c7b078

            SHA512

            9eca000b3c932cfa5e8786bc01e2a503179e50fadb42fec203b6bb68ece0d217f75b0c5aae3945025cae09758bd4779eeed51596c59102de8a69955662be7cc4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2b16e2fb8319e1cab8c88e6b847bb715

            SHA1

            8987c135804db1310af0586ac5a4c32285676e93

            SHA256

            a6d4d86ee1ee6a3dc5d1976b580b4ab2f66b10365997ed5e7b941aa868c7b078

            SHA512

            9eca000b3c932cfa5e8786bc01e2a503179e50fadb42fec203b6bb68ece0d217f75b0c5aae3945025cae09758bd4779eeed51596c59102de8a69955662be7cc4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            bc90e3e37e03125204633c6a677a54f8

            SHA1

            505eeac72362128314fe48d137b19d8b5459b81f

            SHA256

            c6d89d40510fafde374243599fef758d56e740b0c383aa8f8bec3016d008028b

            SHA512

            c3f0b66540d4143acf54997dbf7fa67194a95735d87f63e2e436396f67661dc705b4097de4f22db7868795c732da9ec86be449574f1acb3d35b38be02b0bfc70

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            bc90e3e37e03125204633c6a677a54f8

            SHA1

            505eeac72362128314fe48d137b19d8b5459b81f

            SHA256

            c6d89d40510fafde374243599fef758d56e740b0c383aa8f8bec3016d008028b

            SHA512

            c3f0b66540d4143acf54997dbf7fa67194a95735d87f63e2e436396f67661dc705b4097de4f22db7868795c732da9ec86be449574f1acb3d35b38be02b0bfc70

          • \Users\Admin\AppData\Local\Temp\nsy3768.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy3768.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3768.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3768.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3768.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d5bdcc072396bf5ceebb8b5a713bdd61

            SHA1

            78bbc168d7942546edf6c1d8c2f87bc423ca6fb2

            SHA256

            e5f2d5681418610e3b8d6b4fef10aa114ae4483714cf9d9552e1d4b25df0d60d

            SHA512

            a666082e3b7c184c2b7fd423b71b048ecba4b18f6b483dab3ea783aa973b71d6ed64667d0d68aadced7547113c0bb5ed2a9621d9205708e849b601a6fc5ea2e1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d5bdcc072396bf5ceebb8b5a713bdd61

            SHA1

            78bbc168d7942546edf6c1d8c2f87bc423ca6fb2

            SHA256

            e5f2d5681418610e3b8d6b4fef10aa114ae4483714cf9d9552e1d4b25df0d60d

            SHA512

            a666082e3b7c184c2b7fd423b71b048ecba4b18f6b483dab3ea783aa973b71d6ed64667d0d68aadced7547113c0bb5ed2a9621d9205708e849b601a6fc5ea2e1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d5bdcc072396bf5ceebb8b5a713bdd61

            SHA1

            78bbc168d7942546edf6c1d8c2f87bc423ca6fb2

            SHA256

            e5f2d5681418610e3b8d6b4fef10aa114ae4483714cf9d9552e1d4b25df0d60d

            SHA512

            a666082e3b7c184c2b7fd423b71b048ecba4b18f6b483dab3ea783aa973b71d6ed64667d0d68aadced7547113c0bb5ed2a9621d9205708e849b601a6fc5ea2e1

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ae1047d1c4ab6beeb60a862639b414a4

            SHA1

            c00a973fa88560637418bc40437442bf4a1d67ca

            SHA256

            43eb587b8c323d52aa531fd376278c9ad28975c2c55ccbdd7d7481067f4e6669

            SHA512

            9705e3e11bdfc64763dbe5002441ba13e735ac7767e8ed810e6fffe35ebd2c2e3a3c8a2c5a1c1754fec1c606afe7978544f5f680f737b9930e5bc03e43640427

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ae1047d1c4ab6beeb60a862639b414a4

            SHA1

            c00a973fa88560637418bc40437442bf4a1d67ca

            SHA256

            43eb587b8c323d52aa531fd376278c9ad28975c2c55ccbdd7d7481067f4e6669

            SHA512

            9705e3e11bdfc64763dbe5002441ba13e735ac7767e8ed810e6fffe35ebd2c2e3a3c8a2c5a1c1754fec1c606afe7978544f5f680f737b9930e5bc03e43640427

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8a4b14fe79e4a7f2ba09d8a404d3ebfc

            SHA1

            429a50b2c3266f4c254ddda224cf5f4062dcaed0

            SHA256

            c267b70e277c99d3951ff405350e3387d9c62f12dd7fa759073a4200d19057ef

            SHA512

            3b94a8464d60658504bfdc197a827e2d041dbac4d093c2db42a8c3a8870253c0697ef0fe1ec38f09101b4b1b428c57cd1e7e6fe8182bee5208e0993751de8518

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2b16e2fb8319e1cab8c88e6b847bb715

            SHA1

            8987c135804db1310af0586ac5a4c32285676e93

            SHA256

            a6d4d86ee1ee6a3dc5d1976b580b4ab2f66b10365997ed5e7b941aa868c7b078

            SHA512

            9eca000b3c932cfa5e8786bc01e2a503179e50fadb42fec203b6bb68ece0d217f75b0c5aae3945025cae09758bd4779eeed51596c59102de8a69955662be7cc4

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            bc90e3e37e03125204633c6a677a54f8

            SHA1

            505eeac72362128314fe48d137b19d8b5459b81f

            SHA256

            c6d89d40510fafde374243599fef758d56e740b0c383aa8f8bec3016d008028b

            SHA512

            c3f0b66540d4143acf54997dbf7fa67194a95735d87f63e2e436396f67661dc705b4097de4f22db7868795c732da9ec86be449574f1acb3d35b38be02b0bfc70

          • memory/296-86-0x0000000000000000-mapping.dmp

          • memory/748-81-0x0000000000000000-mapping.dmp

          • memory/784-70-0x0000000000000000-mapping.dmp

          • memory/952-58-0x0000000000000000-mapping.dmp

          • memory/1208-61-0x0000000000000000-mapping.dmp

          • memory/1280-80-0x0000000000000000-mapping.dmp

          • memory/1344-76-0x0000000000000000-mapping.dmp

          • memory/1380-64-0x0000000000000000-mapping.dmp

          • memory/1516-87-0x0000000000000000-mapping.dmp

          • memory/1564-59-0x0000000000000000-mapping.dmp

          • memory/1816-62-0x0000000000000000-mapping.dmp

          • memory/1980-54-0x0000000075521000-0x0000000075523000-memory.dmp

            Filesize

            8KB

          • memory/1980-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1980-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB