Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    9168ae7b93f21f836955a8b6b7bc4ff801060012d32b62874a1ab42f688f242e.exe

  • Size

    602KB

  • MD5

    9a9a7a423698afaf4757640ae830d863

  • SHA1

    f8b53d2f3e9b08e9a41ed928755ffd68875f70ef

  • SHA256

    9168ae7b93f21f836955a8b6b7bc4ff801060012d32b62874a1ab42f688f242e

  • SHA512

    cefe5e100ae5b0cc5fd09bc83572f15a3a102ff45c050af885b68fde54a268bf4094feb84bac2ce650f375bf4d1725a6683dce5c182c3fa0bc5c68b60198a706

  • SSDEEP

    12288:4Iny5DYTaVR4OowEMpfEi1QX5Vjce0h5u/eA4FM1nw:WUTazVpDgVoS/ee

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\9168ae7b93f21f836955a8b6b7bc4ff801060012d32b62874a1ab42f688f242e.exe
    "C:\Users\Admin\AppData\Local\Temp\9168ae7b93f21f836955a8b6b7bc4ff801060012d32b62874a1ab42f688f242e.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:536
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:952
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:948
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1744
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2016
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1680
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:624
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1216
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1652
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1860
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1644
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:472

          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

            1c9aa8dd89b621d14530fda0312ac887

            SHA1

            89430bdcaebdcd608de91fb6914a97784d19857d

            SHA256

            7ab12ae7d483f55fd182cf69cf6af867814af3cb03e6b9776caab89e93a21416

            SHA512

            905775e7b52b7d4d1a736156b153b102ab13561a624bf5bba2fb4e1617762a1a5e732538e8c952157496a0334adb2e26694c9f04e040fc24c7211b7fc47b4b04

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

            241KB

            MD5

            2c975735310d05ce99f848a08f57974d

            SHA1

            fa0cd49e80472b86fdd317fc07761cd97da956d0

            SHA256

            3b9ad46f5ce558a1dc2056557d402c76053f852300cc9fda8817c8a9657dfff9

            SHA512

            d106d1bc7164114fbc1422e5f203b9a7284834fd387ea643ab566f7221d5fc27f5c5ccfc5c6ebdf90090ae88642dbf8c0778666c5b90273ece22e26e998427b9

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

            108KB

            MD5

            c40f1d2571632b1b330510bcfd43b333

            SHA1

            ca0aec9f9857439e72ac9c8e60919954bbd6f490

            SHA256

            54767a7f3e907b1127da7aa233ea61b3c95dfc4682573f5afb2fbb8b79db46ea

            SHA512

            26e6b2740a73225e8064cade847d6a0119910d5faecf6e7b982888af41c2ef3398f646ad48cb2dbf995852842ea231c5a8e9a7d1a6ee37638c81db568052052d

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

            176KB

            MD5

            50f7e6cb12bf6c52cd5f6199bda5c411

            SHA1

            597ab1255c2c1d8b297b01dcc746aecce5307259

            SHA256

            6ff7d95be09a5130a027a43d177bcb8ff09135f8d279cea970442f4744356fa7

            SHA512

            8b62ef3fa98e2ed7b517b98bbe89c922681d119f4c77e33bcbc77418a94ab31345800ea0c319a36c6a945c219ce3f44e06a0bdd927cc72f1aef179b2dac0de9b

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

            176KB

            MD5

            50f7e6cb12bf6c52cd5f6199bda5c411

            SHA1

            597ab1255c2c1d8b297b01dcc746aecce5307259

            SHA256

            6ff7d95be09a5130a027a43d177bcb8ff09135f8d279cea970442f4744356fa7

            SHA512

            8b62ef3fa98e2ed7b517b98bbe89c922681d119f4c77e33bcbc77418a94ab31345800ea0c319a36c6a945c219ce3f44e06a0bdd927cc72f1aef179b2dac0de9b

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

            158KB

            MD5

            a55be8143e1fab2bf0cd03d5afc86ec5

            SHA1

            4c9c0b7e2cd0945e3bdc7bf5342d40b86dc47740

            SHA256

            d06ef4aad9c668506bd2c6e62bfaa8f3c1033a83ade5ec6292e602975cc717bb

            SHA512

            3cc49c44d7180639a950f35514a4524c4a0fa95ebfd24876f94803638541706f14e77c47ad2ab8b79cf4729b4e787001143dac34d1b9d9067631c729e4c55dc8

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

            158KB

            MD5

            a55be8143e1fab2bf0cd03d5afc86ec5

            SHA1

            4c9c0b7e2cd0945e3bdc7bf5342d40b86dc47740

            SHA256

            d06ef4aad9c668506bd2c6e62bfaa8f3c1033a83ade5ec6292e602975cc717bb

            SHA512

            3cc49c44d7180639a950f35514a4524c4a0fa95ebfd24876f94803638541706f14e77c47ad2ab8b79cf4729b4e787001143dac34d1b9d9067631c729e4c55dc8

          • \Users\Admin\AppData\Local\Temp\nsoF950.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF950.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF950.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF950.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF950.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1c9aa8dd89b621d14530fda0312ac887

            SHA1

            89430bdcaebdcd608de91fb6914a97784d19857d

            SHA256

            7ab12ae7d483f55fd182cf69cf6af867814af3cb03e6b9776caab89e93a21416

            SHA512

            905775e7b52b7d4d1a736156b153b102ab13561a624bf5bba2fb4e1617762a1a5e732538e8c952157496a0334adb2e26694c9f04e040fc24c7211b7fc47b4b04

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1c9aa8dd89b621d14530fda0312ac887

            SHA1

            89430bdcaebdcd608de91fb6914a97784d19857d

            SHA256

            7ab12ae7d483f55fd182cf69cf6af867814af3cb03e6b9776caab89e93a21416

            SHA512

            905775e7b52b7d4d1a736156b153b102ab13561a624bf5bba2fb4e1617762a1a5e732538e8c952157496a0334adb2e26694c9f04e040fc24c7211b7fc47b4b04

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1c9aa8dd89b621d14530fda0312ac887

            SHA1

            89430bdcaebdcd608de91fb6914a97784d19857d

            SHA256

            7ab12ae7d483f55fd182cf69cf6af867814af3cb03e6b9776caab89e93a21416

            SHA512

            905775e7b52b7d4d1a736156b153b102ab13561a624bf5bba2fb4e1617762a1a5e732538e8c952157496a0334adb2e26694c9f04e040fc24c7211b7fc47b4b04

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2c975735310d05ce99f848a08f57974d

            SHA1

            fa0cd49e80472b86fdd317fc07761cd97da956d0

            SHA256

            3b9ad46f5ce558a1dc2056557d402c76053f852300cc9fda8817c8a9657dfff9

            SHA512

            d106d1bc7164114fbc1422e5f203b9a7284834fd387ea643ab566f7221d5fc27f5c5ccfc5c6ebdf90090ae88642dbf8c0778666c5b90273ece22e26e998427b9

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2c975735310d05ce99f848a08f57974d

            SHA1

            fa0cd49e80472b86fdd317fc07761cd97da956d0

            SHA256

            3b9ad46f5ce558a1dc2056557d402c76053f852300cc9fda8817c8a9657dfff9

            SHA512

            d106d1bc7164114fbc1422e5f203b9a7284834fd387ea643ab566f7221d5fc27f5c5ccfc5c6ebdf90090ae88642dbf8c0778666c5b90273ece22e26e998427b9

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            c40f1d2571632b1b330510bcfd43b333

            SHA1

            ca0aec9f9857439e72ac9c8e60919954bbd6f490

            SHA256

            54767a7f3e907b1127da7aa233ea61b3c95dfc4682573f5afb2fbb8b79db46ea

            SHA512

            26e6b2740a73225e8064cade847d6a0119910d5faecf6e7b982888af41c2ef3398f646ad48cb2dbf995852842ea231c5a8e9a7d1a6ee37638c81db568052052d

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            50f7e6cb12bf6c52cd5f6199bda5c411

            SHA1

            597ab1255c2c1d8b297b01dcc746aecce5307259

            SHA256

            6ff7d95be09a5130a027a43d177bcb8ff09135f8d279cea970442f4744356fa7

            SHA512

            8b62ef3fa98e2ed7b517b98bbe89c922681d119f4c77e33bcbc77418a94ab31345800ea0c319a36c6a945c219ce3f44e06a0bdd927cc72f1aef179b2dac0de9b

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            a55be8143e1fab2bf0cd03d5afc86ec5

            SHA1

            4c9c0b7e2cd0945e3bdc7bf5342d40b86dc47740

            SHA256

            d06ef4aad9c668506bd2c6e62bfaa8f3c1033a83ade5ec6292e602975cc717bb

            SHA512

            3cc49c44d7180639a950f35514a4524c4a0fa95ebfd24876f94803638541706f14e77c47ad2ab8b79cf4729b4e787001143dac34d1b9d9067631c729e4c55dc8

          • memory/536-58-0x0000000000000000-mapping.dmp
          • memory/624-76-0x0000000000000000-mapping.dmp
          • memory/948-61-0x0000000000000000-mapping.dmp
          • memory/952-59-0x0000000000000000-mapping.dmp
          • memory/1116-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1116-54-0x0000000074D61000-0x0000000074D63000-memory.dmp
            Filesize

            8KB

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

            4.4MB

          • memory/1216-81-0x0000000000000000-mapping.dmp
          • memory/1652-86-0x0000000000000000-mapping.dmp
          • memory/1680-70-0x0000000000000000-mapping.dmp
          • memory/1744-62-0x0000000000000000-mapping.dmp
          • memory/1860-87-0x0000000000000000-mapping.dmp
          • memory/1928-80-0x0000000000000000-mapping.dmp
          • memory/2016-64-0x0000000000000000-mapping.dmp