Analysis

  • max time kernel
    64s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:29

General

  • Target

    30d8647560bd1319b6929c270f9cc65a6547095abda9bb67fdf302eddc781660.exe

  • Size

    603KB

  • MD5

    84ffca4f8668b407b8bf750446be42c1

  • SHA1

    6ca88b40578367e45f716fde6e59d38fb6433ecf

  • SHA256

    30d8647560bd1319b6929c270f9cc65a6547095abda9bb67fdf302eddc781660

  • SHA512

    5d106fc11d5191761a3d2077c37a9d858c9042c8ff95ab957914541823111f0fa2bd211be0be267308ac761d821b75c1865be2196625b753e48e08a7ce6783ef

  • SSDEEP

    12288:uIny5DYTMI2mW9ixLCR6qMoEIeCaXUOg1p0Phv/g48dLqlu92:wUTMtvRRuCeP5M+hHX2LqX

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\30d8647560bd1319b6929c270f9cc65a6547095abda9bb67fdf302eddc781660.exe
    "C:\Users\Admin\AppData\Local\Temp\30d8647560bd1319b6929c270f9cc65a6547095abda9bb67fdf302eddc781660.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:1532
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:780
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:268
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1492
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1300
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:816
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1296
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1052
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1944
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1256
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:804
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1348

          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

            426559d9ceab3a001f5eb1ef6d91da9d

            SHA1

            5e7e6fbfb84f8c10dec4f161cfc90ad75ff375d1

            SHA256

            be4a653d9e95957b08ecc8ea9409b747d5e285eb667d1244af93416a2a58db58

            SHA512

            73d53a2e2a073dc64d9b68cc0b39b296b254e000253778c7975527d19b4b5c1bbb81e7f088341a6cc087c07c5a5e5333797f48b79588d7e3355b8e88a238dc6b

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

            244KB

            MD5

            ee2d8cb14a05506136f8088339afd6ad

            SHA1

            52f4727be71121225714128b4960ac07667f976c

            SHA256

            77d0872afa18ec195ff47370fedea6f510231c02f5a5d7a04ac1ca2f13e0a7ab

            SHA512

            0ca2853bc7f98dbca576c8fc7c119ba37e935400683798324eb6eee7b890c3e0e93da49efe0a6f21e1d74b4f8fe457826a270f9629ba51c59d4eeec78c2e23d4

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

            108KB

            MD5

            fa4b4ce1709b1ee78751cbe4b97b9808

            SHA1

            709fe552c89493879bcedd1bc22f9831680571ef

            SHA256

            c3697661617f02e5a02aaa5379b4f03499e276fdc8b56343e6603aed24077ba1

            SHA512

            3a0116606783ce45dc41dc258642e0a5019d4634717e101c8f5d609e7af4011dc53d862d61c51db5b8e9d3052996824be237a328d40f16c40c3768a748952b54

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

            176KB

            MD5

            b1664a8eb9c61594f90c0c35ae50dd20

            SHA1

            a9f2b0644f773fe2727e81ed1236a6f6d7e77b4b

            SHA256

            df9fe0da208852cbd8be2c7ad346a083b59d58e423daf599f4b1a5721dcc3571

            SHA512

            1e1e748501129c1c5ec3deb4e3b0249ba15f9edc5c31ffc4e3ff26ca24545d67fe87f3f0d5abe3ee90def0efaa9e45b002179d15f4d7b9ab3f8df18a9d00108f

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

            176KB

            MD5

            b1664a8eb9c61594f90c0c35ae50dd20

            SHA1

            a9f2b0644f773fe2727e81ed1236a6f6d7e77b4b

            SHA256

            df9fe0da208852cbd8be2c7ad346a083b59d58e423daf599f4b1a5721dcc3571

            SHA512

            1e1e748501129c1c5ec3deb4e3b0249ba15f9edc5c31ffc4e3ff26ca24545d67fe87f3f0d5abe3ee90def0efaa9e45b002179d15f4d7b9ab3f8df18a9d00108f

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

            159KB

            MD5

            083e4b7b59dc720b9f5c7639acecdbf2

            SHA1

            a5534fe97da5d39bc96c74a7d84924d032e651d6

            SHA256

            20648ed865a3e5c75abcda17b34807152acace466eaa4615b9f42085e10f7e40

            SHA512

            75ac5173e884663ccaf1c43c9f573ad90f6a749cbefd883d3b4d71869bbd96f6f1d0b75252fed9854699aa047d8dfd4f204999ed28c3c1346beb4810013a2071

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

            159KB

            MD5

            083e4b7b59dc720b9f5c7639acecdbf2

            SHA1

            a5534fe97da5d39bc96c74a7d84924d032e651d6

            SHA256

            20648ed865a3e5c75abcda17b34807152acace466eaa4615b9f42085e10f7e40

            SHA512

            75ac5173e884663ccaf1c43c9f573ad90f6a749cbefd883d3b4d71869bbd96f6f1d0b75252fed9854699aa047d8dfd4f204999ed28c3c1346beb4810013a2071

          • \Users\Admin\AppData\Local\Temp\nst96A7.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst96A7.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst96A7.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst96A7.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst96A7.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            426559d9ceab3a001f5eb1ef6d91da9d

            SHA1

            5e7e6fbfb84f8c10dec4f161cfc90ad75ff375d1

            SHA256

            be4a653d9e95957b08ecc8ea9409b747d5e285eb667d1244af93416a2a58db58

            SHA512

            73d53a2e2a073dc64d9b68cc0b39b296b254e000253778c7975527d19b4b5c1bbb81e7f088341a6cc087c07c5a5e5333797f48b79588d7e3355b8e88a238dc6b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            426559d9ceab3a001f5eb1ef6d91da9d

            SHA1

            5e7e6fbfb84f8c10dec4f161cfc90ad75ff375d1

            SHA256

            be4a653d9e95957b08ecc8ea9409b747d5e285eb667d1244af93416a2a58db58

            SHA512

            73d53a2e2a073dc64d9b68cc0b39b296b254e000253778c7975527d19b4b5c1bbb81e7f088341a6cc087c07c5a5e5333797f48b79588d7e3355b8e88a238dc6b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            426559d9ceab3a001f5eb1ef6d91da9d

            SHA1

            5e7e6fbfb84f8c10dec4f161cfc90ad75ff375d1

            SHA256

            be4a653d9e95957b08ecc8ea9409b747d5e285eb667d1244af93416a2a58db58

            SHA512

            73d53a2e2a073dc64d9b68cc0b39b296b254e000253778c7975527d19b4b5c1bbb81e7f088341a6cc087c07c5a5e5333797f48b79588d7e3355b8e88a238dc6b

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            ee2d8cb14a05506136f8088339afd6ad

            SHA1

            52f4727be71121225714128b4960ac07667f976c

            SHA256

            77d0872afa18ec195ff47370fedea6f510231c02f5a5d7a04ac1ca2f13e0a7ab

            SHA512

            0ca2853bc7f98dbca576c8fc7c119ba37e935400683798324eb6eee7b890c3e0e93da49efe0a6f21e1d74b4f8fe457826a270f9629ba51c59d4eeec78c2e23d4

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            ee2d8cb14a05506136f8088339afd6ad

            SHA1

            52f4727be71121225714128b4960ac07667f976c

            SHA256

            77d0872afa18ec195ff47370fedea6f510231c02f5a5d7a04ac1ca2f13e0a7ab

            SHA512

            0ca2853bc7f98dbca576c8fc7c119ba37e935400683798324eb6eee7b890c3e0e93da49efe0a6f21e1d74b4f8fe457826a270f9629ba51c59d4eeec78c2e23d4

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            fa4b4ce1709b1ee78751cbe4b97b9808

            SHA1

            709fe552c89493879bcedd1bc22f9831680571ef

            SHA256

            c3697661617f02e5a02aaa5379b4f03499e276fdc8b56343e6603aed24077ba1

            SHA512

            3a0116606783ce45dc41dc258642e0a5019d4634717e101c8f5d609e7af4011dc53d862d61c51db5b8e9d3052996824be237a328d40f16c40c3768a748952b54

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            b1664a8eb9c61594f90c0c35ae50dd20

            SHA1

            a9f2b0644f773fe2727e81ed1236a6f6d7e77b4b

            SHA256

            df9fe0da208852cbd8be2c7ad346a083b59d58e423daf599f4b1a5721dcc3571

            SHA512

            1e1e748501129c1c5ec3deb4e3b0249ba15f9edc5c31ffc4e3ff26ca24545d67fe87f3f0d5abe3ee90def0efaa9e45b002179d15f4d7b9ab3f8df18a9d00108f

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            083e4b7b59dc720b9f5c7639acecdbf2

            SHA1

            a5534fe97da5d39bc96c74a7d84924d032e651d6

            SHA256

            20648ed865a3e5c75abcda17b34807152acace466eaa4615b9f42085e10f7e40

            SHA512

            75ac5173e884663ccaf1c43c9f573ad90f6a749cbefd883d3b4d71869bbd96f6f1d0b75252fed9854699aa047d8dfd4f204999ed28c3c1346beb4810013a2071

          • memory/268-62-0x0000000000000000-mapping.dmp
          • memory/780-58-0x0000000000000000-mapping.dmp
          • memory/816-77-0x0000000000000000-mapping.dmp
          • memory/1052-82-0x0000000000000000-mapping.dmp
          • memory/1188-61-0x0000000000000000-mapping.dmp
          • memory/1256-88-0x0000000000000000-mapping.dmp
          • memory/1296-81-0x0000000000000000-mapping.dmp
          • memory/1300-71-0x0000000000000000-mapping.dmp
          • memory/1492-64-0x0000000000000000-mapping.dmp
          • memory/1532-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1532-54-0x0000000076941000-0x0000000076943000-memory.dmp
            Filesize

            8KB

          • memory/1532-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1532-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1944-87-0x0000000000000000-mapping.dmp
          • memory/2000-57-0x0000000000000000-mapping.dmp