Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07-04-2023 01:02

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 38 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:2044
    • 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:1164
    • 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:972
    • 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:1996
    • 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:2008
    • 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:1340
    • 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:464
      • C:\Windows\SysWOW64\notepad.exe
        "C:\Windows\System32\notepad.exe" \note.txt
        3⤵
          PID:696
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" https://google.co.ck/search?q=how+to+remove+memz+trojan+virus
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:368
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:368 CREDAT:275457 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1448
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x488
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1616

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      61KB

      MD5

      e71c8443ae0bc2e282c73faead0a6dd3

      SHA1

      0c110c1b01e68edfacaeae64781a37b1995fa94b

      SHA256

      95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

      SHA512

      b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

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

      Filesize

      304B

      MD5

      ce677511b76e75463a63fe0b355eedd2

      SHA1

      6ed2aeb269745ee6ab381e616a9abb2ed8ca40fb

      SHA256

      3f453df86e78c6bd9ca41e39e587a7ef1d94f702b19602b7f4e4c4d58c318e68

      SHA512

      f8f3e166b7f1a4b315477eb91b02324bc1f1eb4a7b1d3a9f7b5136104750b9e1ced8e895bb4064a423e1fb2076167bc26c3fc36285c96eb38c9752e81238e011

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

      Filesize

      304B

      MD5

      bd4827e3814d3ba9b57026dfb75047d4

      SHA1

      32e7307fe5457efa00c9afd1f4fb4bd055b53c17

      SHA256

      ea5e69e08ba7a108a75c7b86ec647266ac264a154699cc7940f080a8fd90ecca

      SHA512

      36c2921e36ef3c68cdde0f8e868efb09f4835a52134dffe848c6b7b42d4f0c9f27129ba19bb00ab645acaf88aad5fb46676ec09cd39011ee73bc51592dffb653

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

      Filesize

      304B

      MD5

      3095613b648b65b6b831bb47b53fe105

      SHA1

      54eb84583225a03afdbbb76ba5d6ce1d3b683fc9

      SHA256

      8bde22ad14eacee1b539dd7631277366740f6205c26fb88873a841a0ba51879c

      SHA512

      837b44e4df98b63cf0c82662457f4e5476c4f72cc46a02fe869b1ac66d779c868e15d48f8a8dfa5db3476da09e0cd85e5a754e12e14e760427c89ae280176de7

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

      Filesize

      304B

      MD5

      6b67b88a7ca2033a034df4c992ff0461

      SHA1

      637fb900e5b5c205aee3416099cfb1866d5ddc6f

      SHA256

      f50efda0dbaeeb082b62774758160382672522e420e4bbacd71c558c84e0a607

      SHA512

      99ef4ad212d7d863ccf5cd910c13da99af8bbdeda91eacb6c139ae7a773755c1245074e09fe6c4bc634dc18397f117b7ca8615b5d8db8e9fbdd982214c8daedd

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

      Filesize

      304B

      MD5

      ba5a30f1d72ff59f82e36b0a07c331c8

      SHA1

      b7e6260457a5cf4b69029b59dd067e013e39353e

      SHA256

      63a7d3b98dda6283c7ab4fb24e9c1092101aa761634d9b4b44073b3d0f3a9176

      SHA512

      c7217561eef61354b5f5860fb8440cbb7f072ee5bc2dcb0a6655c0f8c907b639400584490de890b45c4a5d4e33b5a3f8815aa0f86a8385a1acb120b753402e5e

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

      Filesize

      304B

      MD5

      54a859472757ed1c3cb6631b9a6e2390

      SHA1

      047be80fc9374e205ad0067d8228677b8dafe792

      SHA256

      36ae97d2626f9b11d82681fbf3a80ccacc96aa51a34626d15a59dd8b4283589a

      SHA512

      0f4210940c85294bcb64b0b34a592a5dba4f41aeece615284ab72725f93fab475756bbe3b903a2a658475c4cbec331fc0ba5f5935d4ed2ef18a140219dc0afb7

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

      Filesize

      342B

      MD5

      20413f97670290da3a4efe3783f5dd2b

      SHA1

      326f669bcc239dbb22cdf4e236084d029bea0907

      SHA256

      ae329e83a19504e5d56208d36d4d758ee526705d11ab32a96d475968fdb959d1

      SHA512

      c6adfffff477b713539800fa16f30eb1c590fa0fdc5dbe28445baee72aafd5b4904d408b08c03cdf3d3ec5475a867c817c72b0a4e0078351c0d7af38430df00d

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\62yy7f8\imagestore.dat

      Filesize

      9KB

      MD5

      d3b8cfb79a7278ca9a361024d9f0898e

      SHA1

      0be06768fe4d6ebb4082c1f7a67bdb6acfbec58d

      SHA256

      3052072c4fd8147469ced74e799764226d3a32d290f5aafd8f0699b00d4238a2

      SHA512

      51ab5a66adb0f2e5d1ddd44a3b70757e859cd85461867a1f28925d4929dedfdd5d275e857e6d83011ee3c7cf14a0b4b286763edc2bde878ecd5a38adf5d0e8df

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

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\T22XS5WA\favicon[2].ico

      Filesize

      5KB

      MD5

      f3418a443e7d841097c714d69ec4bcb8

      SHA1

      49263695f6b0cdd72f45cf1b775e660fdc36c606

      SHA256

      6da5620880159634213e197fafca1dde0272153be3e4590818533fab8d040770

      SHA512

      82d017c4b7ec8e0c46e8b75da0ca6a52fd8bce7fcf4e556cbdf16b49fc81be9953fe7e25a05f63ecd41c7272e8bb0a9fd9aedf0ac06cb6032330b096b3702563

    • C:\Users\Admin\AppData\Local\Temp\CabEC07.tmp

      Filesize

      61KB

      MD5

      fc4666cbca561e864e7fdf883a9e6661

      SHA1

      2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

      SHA256

      10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

      SHA512

      c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    • C:\Users\Admin\AppData\Local\Temp\TarEC09.tmp

      Filesize

      161KB

      MD5

      73b4b714b42fc9a6aaefd0ae59adb009

      SHA1

      efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

      SHA256

      c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

      SHA512

      73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

    • C:\Users\Admin\AppData\Local\Temp\TarEE12.tmp

      Filesize

      161KB

      MD5

      be2bec6e8c5653136d3e72fe53c98aa3

      SHA1

      a8182d6db17c14671c3d5766c72e58d87c0810de

      SHA256

      1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

      SHA512

      0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\QRCI5CAY.txt

      Filesize

      608B

      MD5

      da0d45de47f41625e2656166758956dc

      SHA1

      e0734a5fec1eecabae3ec356045b4daf2e3ae627

      SHA256

      b5d23e157ddceab2295c8c7dbc5ec7ac94c26fb1a5d54db095cae115a42635c4

      SHA512

      4928947e32b5e35c6fb7baa1ac5074cdb7e53b6655af7970ce1ac2a9b548facb47d0edbd492cc675c17dd3cd744a088fb9e765ba66438cbe655788de922d53e5

    • C:\note.txt

      Filesize

      218B

      MD5

      afa6955439b8d516721231029fb9ca1b

      SHA1

      087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

      SHA256

      8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

      SHA512

      5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf