Analysis

  • max time kernel
    156s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05-04-2023 21:48

General

  • Target

    MEMZ 3.0/MEMZ.exe

  • Size

    12KB

  • MD5

    a7bcf7ea8e9f3f36ebfb85b823e39d91

  • SHA1

    761168201520c199dba68add3a607922d8d4a86e

  • SHA256

    3ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42

  • SHA512

    89923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523

  • SSDEEP

    192:HMDLTxWDf/pl3cIEiwqZKBktLe3P+qf2jhP6B5b2yL3:H4IDH3cIqqvUWq+jhyT2yL

Score
6/10

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
    "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:928
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1460
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1944
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:988
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1500
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:680
    • C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /main
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\SysWOW64\notepad.exe
        "C:\Windows\System32\notepad.exe" \note.txt
        3⤵
          PID:584
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" https://google.co.ck/search?q=g3t+r3kt
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1936
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1936 CREDAT:275457 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1796
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x484
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1116

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      58984f660c873dd76271ebf5623f6fac

      SHA1

      83a2a52801a4eab034a0c42df99058c3852c45b3

      SHA256

      a7c0de1e64ea48fcd9669386deec239c09b6b1fad8d8a83215f0739b8db2db78

      SHA512

      6c85b47ceb37466407b7e03bd9cbb0401591ce63ec94acad11e3bc46bf25e882c3452afa7ab1e53a1e25480daef8ce3b92a0d0d7ede8d9a4447089a64dcea85c

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      a8c326d103edca069913158ee99f2a80

      SHA1

      8a97b4de65572a1ea368cd1928367ed3c9455892

      SHA256

      108cb10e6eee805f7abeebf52dcfb50928d304bd4ed7dad9309aafcc2be5b63f

      SHA512

      06d2e3a943a66f0b580bdc7329aa4eda6a90b212855391e6d97fe883d2a30c428e0fcc98d7b540396cf64f581cd2d449564c382e8c94265cc23105ead8d2df38

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      3fa45d79707f5a936c47757d04f76d44

      SHA1

      83e1c4b763e6ccb28b92417394f3547ed119375e

      SHA256

      2a73d5377a55a732e55133b81debb95df682b167f4a73a164f71b61813d64139

      SHA512

      f1802b1c33f2dd605f89e7d7e3ad1ffd6ec292d506bc052cc7f3161bd8325ff4b58f88e37d57461544508145b4760a24b35405acc9d25bd588a885f8ea01b01d

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      df67a417313e2fb3ac236e02d8664fee

      SHA1

      f5370930175e04e2ace1faaa21851a066429a158

      SHA256

      7d0eddf578b9f016b547107fcb738bf27731e3f8544e9c173f3c30397b30bdee

      SHA512

      029466f60c386d97c756ed47b16aca982ae4390df4ba601eaebf4dbab0a9296414d7cf32a3a3c360a9b1240abec5c244460bd136733741762417f49106e41f4f

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      f357bbe72ccb16d62f6e105cc6a487f4

      SHA1

      b48bf6186fb3cd83aded85c77c47b0e6a05a1102

      SHA256

      1f925a5cc9334a4e5edc00544b8fd241a66011d42dad9e24fc9e9e0c5f98b666

      SHA512

      59e44fe9309f78fc8fb5116da3c79d7c8a6b2f54569e66046cc3444fc561095fe45363b10cd59781f770c30903b30ab706b39a12e83696ee0ab0dc57af678824

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      6c431f8a4b83010b5ee76f0b116d81b0

      SHA1

      e94eb9e8280114f08d6f77c144b73c5c65c24c31

      SHA256

      0e1e46a61b4396a8df4f4e0d7b71d0d88681504c0272eba610c9f0fc4e599273

      SHA512

      c6ad53644af4cbf1fcb6378df86c76e1b6abf1c63d586d34558296ff0a2dfee87d7b3376a26e67d3c2fa77e2d7794170898938ba5eccc526c89aaccd43e5e427

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      c1286d01e11e7c3e6a4607ed71143e13

      SHA1

      10b2012c7599c9ff00827a93ebdd22c6fbecddd4

      SHA256

      ff3e9f183bf29d690471aebdf0fcda01b6f51f4f94ad64cd0c23688021064e90

      SHA512

      5bcd90e6c3c7f5264ef8455be1d8c359315ae3a8c35b1b3da76b9101bb6c0855bdcaf24b38c89d06367aa7abc37060196f6b0f6afd22cdc99d11307e6b2e43ea

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      746ce07dac73d02206127072c4af13c5

      SHA1

      b140d5509854b41cc2db0dfd45f15a3b975c96c4

      SHA256

      c71529cfb804a5bc6d1c69782fa085df762b98da957a6025eb0e717e0da242cd

      SHA512

      dc88c69203c02e8e9b7535e711310515bdd4a90b76f378d0509a8e049db088537460ef5bf6abe9b389a0b89a0a86c83c0a27b4b21ca18cfb3a911a85c64b82c7

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      def0fb488d89d6b57b6f53598246357f

      SHA1

      b782c80fba480abd7d36660f2425d675b2066f66

      SHA256

      904a4fba392bad638c3debcd7f637b974b50920d6df47d94120d5ad580aabf56

      SHA512

      bb459ec68e951c54b210b3da95c2cfbcbdeef3ca92196cb287e7f7daf1245d46c5c517cebfe6fc0f1f766ac510ac31c3a8a7df141223f80c6ad443825d0f5117

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      304B

      MD5

      a7758ba82e0ac8de1fef29c13dbdf55e

      SHA1

      fd27f89f7737f42ba1a2f2fd0d73688c5045e240

      SHA256

      f78c7617f4235741a848772611581559df084fffad0d662840520c08210140a7

      SHA512

      495f00618201eaf3c09aa6f74d6f000a7796fda8bb4b9fed7b6ce227d396c57b2c642f46ce562a63c19b55fbb8d3d9d09451be48c1b4c57340dd2779bca027f2

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      342B

      MD5

      0f0bad4ea4da678e62abe13bd8d6c26b

      SHA1

      a2878dd716bddfa7a6c83ac5b2742bfd061521d9

      SHA256

      73bf0f31a7312e73741027a912ee647b9cea1a7935804a4e124c96f60bbe1a62

      SHA512

      cb293b56ba10ed30b49cf3a0e6a6a2814315b75b2b21f88e1e969402d6899b6984046a60c4f6f369325dc7bc849fe29686a3665c48fed2998c4955f36cf540a7

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\jo5ozfo\imagestore.dat
      Filesize

      9KB

      MD5

      b192d4ebd0bd490b0c64119509b3b0ab

      SHA1

      8133aea85abaa3cb6d812affcd13ee6a0d9ee1a5

      SHA256

      e9ceb2d0bb938ce6274dcd087467f42aef4ea0cb92bf9d73d1838c48a2da15ff

      SHA512

      a96a818e52ef5b9b30eb63b25e451e66083f6e14eb2cda66c5ce88af49b9290ec35535b83720d50c6f01a9feaf3bfcff05e10f564846f95e168f8e25bc06066c

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BA5D7P93\favicon[2].ico
      Filesize

      5KB

      MD5

      f3418a443e7d841097c714d69ec4bcb8

      SHA1

      49263695f6b0cdd72f45cf1b775e660fdc36c606

      SHA256

      6da5620880159634213e197fafca1dde0272153be3e4590818533fab8d040770

      SHA512

      82d017c4b7ec8e0c46e8b75da0ca6a52fd8bce7fcf4e556cbdf16b49fc81be9953fe7e25a05f63ecd41c7272e8bb0a9fd9aedf0ac06cb6032330b096b3702563

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\SKXYVKI3\suggestions[1].en-US
      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Users\Admin\AppData\Local\Temp\CabDEEC.tmp
      Filesize

      61KB

      MD5

      fc4666cbca561e864e7fdf883a9e6661

      SHA1

      2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

      SHA256

      10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

      SHA512

      c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    • C:\Users\Admin\AppData\Local\Temp\CabDFBD.tmp
      Filesize

      61KB

      MD5

      e71c8443ae0bc2e282c73faead0a6dd3

      SHA1

      0c110c1b01e68edfacaeae64781a37b1995fa94b

      SHA256

      95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

      SHA512

      b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

    • C:\Users\Admin\AppData\Local\Temp\TarDEEF.tmp
      Filesize

      161KB

      MD5

      73b4b714b42fc9a6aaefd0ae59adb009

      SHA1

      efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

      SHA256

      c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

      SHA512

      73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

    • C:\Users\Admin\AppData\Local\Temp\TarE02F.tmp
      Filesize

      161KB

      MD5

      be2bec6e8c5653136d3e72fe53c98aa3

      SHA1

      a8182d6db17c14671c3d5766c72e58d87c0810de

      SHA256

      1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

      SHA512

      0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    • C:\Users\Admin\AppData\Local\Temp\~DF787DE13BA41C3E55.TMP
      Filesize

      16KB

      MD5

      15e8c5393491b8b3f6ebe433a233fd7b

      SHA1

      7ca205d63a63a137a82faf3c18317eb1abf30b7f

      SHA256

      3a1c703c269bb5bd89c73e180376d7fd204416bf5e76cb1e41986edb163da30c

      SHA512

      8f470b32d6b40e5481f94a41a5b3a1e85b101415826c211aba137e795c81469522761b11202c90d058590b796caa17f3778cceb7f699321f3ad947ddfaefb9a7

    • C:\note.txt
      Filesize

      218B

      MD5

      afa6955439b8d516721231029fb9ca1b

      SHA1

      087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

      SHA256

      8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

      SHA512

      5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf