Analysis

  • max time kernel
    38s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:26

General

  • Target

    49d43206a3ac17340568ec2e4da419ae55ec5790f6eff640342dd2eb16405aba.exe

  • Size

    602KB

  • MD5

    afdb99a1f187fce5a9dcde4506d60c94

  • SHA1

    257839f7e3b4fd9b0e3b2a0a8d2bf94f18ac685f

  • SHA256

    49d43206a3ac17340568ec2e4da419ae55ec5790f6eff640342dd2eb16405aba

  • SHA512

    8ea7a3bd75ec786002db6d32b88a39724c29bb4e1f6181552f6c1a6abd18d4e3d207d54cf091fdb55e0c71872903330653b84d29788388bfe417a88ae0998927

  • SSDEEP

    12288:cIny5DYTWgtu/68ZwKB2ZwvIIkyX7zm3MUDFMAqPF:6UTWgtu/68Zwy6gX+3/bqt

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\49d43206a3ac17340568ec2e4da419ae55ec5790f6eff640342dd2eb16405aba.exe
    "C:\Users\Admin\AppData\Local\Temp\49d43206a3ac17340568ec2e4da419ae55ec5790f6eff640342dd2eb16405aba.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:1504
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:760
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1740
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1704
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:976
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:740
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1976
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1624
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1648
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1004
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1308

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            106KB

            MD5

            cc222eac586d6ff4a630cb64135b7a29

            SHA1

            bf07a9850279519c03dd24d61060b662c289c279

            SHA256

            e5f4df15c827e51ed3b27f069ae475ae7c5b5fd094711944a016fc7b44060858

            SHA512

            bc87d3d43c2ac3f886a15effc1042359ca5ca77c0e86933d5ac9dcfcccd4a85dc1238f2ef47c29655342c6dc2fd0ca5c92232c83a67a36df6af0787324d23aa8

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

            241KB

            MD5

            eb16a64fdf3e15c91aadcfc19fb0f972

            SHA1

            f8fb08d6c01ffe78fa5f776d46873734fa8a5aa1

            SHA256

            c6f34651635120d9d115b92f1621658ec02aee839c4fb3d49d3a66ea86ba7927

            SHA512

            3efe6ae80deac7a75f89c631dd573eba58109fd249e61c8d6afbfe5c41f602e8e27cba8f7aa4afe62d38c4d318dccc73a17dd3673e1b39f92c25f78fab2a74f4

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

            108KB

            MD5

            97a7b85635f05204181addd80fc294d0

            SHA1

            c216b00daf5ebb45c0c834b953ec7169ca9a56b5

            SHA256

            e9b39e9ec22b6e06eb8a455d2077421432f10a567961422521008e72856c3f3c

            SHA512

            7bd2db4483fceb8177d83dad10337859e60bbf035178a3cfcbc4f8dcd5df993d499cb3349e226b1511993a00f121c78eda29d2b14a752c1c117383de0301de3e

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

            176KB

            MD5

            697faf48f4c193fd439c9e72b579ebb4

            SHA1

            2404c13de9cdd3f5a4ae5082c65c756b53fd33e3

            SHA256

            abbd2978d50ab7839107f450698b53e93e469be2c39923064b2975bad6fca61c

            SHA512

            337fb38899ca9f59cc445f3c5ac2c18ad506785cd066da0bccd579cd279bf3d558f1e5104e1984b150314506d276c3315008dbe5b269b8d693165290914f908c

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

            176KB

            MD5

            697faf48f4c193fd439c9e72b579ebb4

            SHA1

            2404c13de9cdd3f5a4ae5082c65c756b53fd33e3

            SHA256

            abbd2978d50ab7839107f450698b53e93e469be2c39923064b2975bad6fca61c

            SHA512

            337fb38899ca9f59cc445f3c5ac2c18ad506785cd066da0bccd579cd279bf3d558f1e5104e1984b150314506d276c3315008dbe5b269b8d693165290914f908c

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

            159KB

            MD5

            69749a87ac04410a3df23d64eaa75896

            SHA1

            32f41832fa69220983b2414392d33ad995a069ff

            SHA256

            fb034d79a4cec41634da593be9bcf37527b2c484d18b9cc0060dfd44463ceafa

            SHA512

            a933059849ccb07bda5c38f81f5e421bd959b0ca0da0afc57ec6247382a9993a2ae4bb057f5dbfb42581fbbee58b41124ee8a2bde48b1fdc4afb9d8ae93a7f3b

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

            159KB

            MD5

            69749a87ac04410a3df23d64eaa75896

            SHA1

            32f41832fa69220983b2414392d33ad995a069ff

            SHA256

            fb034d79a4cec41634da593be9bcf37527b2c484d18b9cc0060dfd44463ceafa

            SHA512

            a933059849ccb07bda5c38f81f5e421bd959b0ca0da0afc57ec6247382a9993a2ae4bb057f5dbfb42581fbbee58b41124ee8a2bde48b1fdc4afb9d8ae93a7f3b

          • \Users\Admin\AppData\Local\Temp\nst5045.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst5045.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst5045.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst5045.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst5045.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cc222eac586d6ff4a630cb64135b7a29

            SHA1

            bf07a9850279519c03dd24d61060b662c289c279

            SHA256

            e5f4df15c827e51ed3b27f069ae475ae7c5b5fd094711944a016fc7b44060858

            SHA512

            bc87d3d43c2ac3f886a15effc1042359ca5ca77c0e86933d5ac9dcfcccd4a85dc1238f2ef47c29655342c6dc2fd0ca5c92232c83a67a36df6af0787324d23aa8

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cc222eac586d6ff4a630cb64135b7a29

            SHA1

            bf07a9850279519c03dd24d61060b662c289c279

            SHA256

            e5f4df15c827e51ed3b27f069ae475ae7c5b5fd094711944a016fc7b44060858

            SHA512

            bc87d3d43c2ac3f886a15effc1042359ca5ca77c0e86933d5ac9dcfcccd4a85dc1238f2ef47c29655342c6dc2fd0ca5c92232c83a67a36df6af0787324d23aa8

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cc222eac586d6ff4a630cb64135b7a29

            SHA1

            bf07a9850279519c03dd24d61060b662c289c279

            SHA256

            e5f4df15c827e51ed3b27f069ae475ae7c5b5fd094711944a016fc7b44060858

            SHA512

            bc87d3d43c2ac3f886a15effc1042359ca5ca77c0e86933d5ac9dcfcccd4a85dc1238f2ef47c29655342c6dc2fd0ca5c92232c83a67a36df6af0787324d23aa8

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            eb16a64fdf3e15c91aadcfc19fb0f972

            SHA1

            f8fb08d6c01ffe78fa5f776d46873734fa8a5aa1

            SHA256

            c6f34651635120d9d115b92f1621658ec02aee839c4fb3d49d3a66ea86ba7927

            SHA512

            3efe6ae80deac7a75f89c631dd573eba58109fd249e61c8d6afbfe5c41f602e8e27cba8f7aa4afe62d38c4d318dccc73a17dd3673e1b39f92c25f78fab2a74f4

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            eb16a64fdf3e15c91aadcfc19fb0f972

            SHA1

            f8fb08d6c01ffe78fa5f776d46873734fa8a5aa1

            SHA256

            c6f34651635120d9d115b92f1621658ec02aee839c4fb3d49d3a66ea86ba7927

            SHA512

            3efe6ae80deac7a75f89c631dd573eba58109fd249e61c8d6afbfe5c41f602e8e27cba8f7aa4afe62d38c4d318dccc73a17dd3673e1b39f92c25f78fab2a74f4

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            97a7b85635f05204181addd80fc294d0

            SHA1

            c216b00daf5ebb45c0c834b953ec7169ca9a56b5

            SHA256

            e9b39e9ec22b6e06eb8a455d2077421432f10a567961422521008e72856c3f3c

            SHA512

            7bd2db4483fceb8177d83dad10337859e60bbf035178a3cfcbc4f8dcd5df993d499cb3349e226b1511993a00f121c78eda29d2b14a752c1c117383de0301de3e

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            697faf48f4c193fd439c9e72b579ebb4

            SHA1

            2404c13de9cdd3f5a4ae5082c65c756b53fd33e3

            SHA256

            abbd2978d50ab7839107f450698b53e93e469be2c39923064b2975bad6fca61c

            SHA512

            337fb38899ca9f59cc445f3c5ac2c18ad506785cd066da0bccd579cd279bf3d558f1e5104e1984b150314506d276c3315008dbe5b269b8d693165290914f908c

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            69749a87ac04410a3df23d64eaa75896

            SHA1

            32f41832fa69220983b2414392d33ad995a069ff

            SHA256

            fb034d79a4cec41634da593be9bcf37527b2c484d18b9cc0060dfd44463ceafa

            SHA512

            a933059849ccb07bda5c38f81f5e421bd959b0ca0da0afc57ec6247382a9993a2ae4bb057f5dbfb42581fbbee58b41124ee8a2bde48b1fdc4afb9d8ae93a7f3b

          • memory/740-80-0x0000000000000000-mapping.dmp
          • memory/760-59-0x0000000000000000-mapping.dmp
          • memory/964-62-0x0000000000000000-mapping.dmp
          • memory/976-76-0x0000000000000000-mapping.dmp
          • memory/1324-58-0x0000000000000000-mapping.dmp
          • memory/1504-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1504-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1504-54-0x00000000768A1000-0x00000000768A3000-memory.dmp
            Filesize

            8KB

          • memory/1624-86-0x0000000000000000-mapping.dmp
          • memory/1648-87-0x0000000000000000-mapping.dmp
          • memory/1704-70-0x0000000000000000-mapping.dmp
          • memory/1740-64-0x0000000000000000-mapping.dmp
          • memory/1940-61-0x0000000000000000-mapping.dmp
          • memory/1976-81-0x0000000000000000-mapping.dmp