Analysis

  • max time kernel
    70s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 15:54

General

  • Target

    cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db.exe

  • Size

    713KB

  • MD5

    1194cdb39cd66f8fd31141ea1a2438f2

  • SHA1

    c2f7b617b631c8ea25263f3343c343cb0b9a71f9

  • SHA256

    cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db

  • SHA512

    19eb5db13798343bfa5b339cbb52e9be169565e889701b58157b587003632915e7c952b4ad616cf8844fd2744b985a789fafb9fef78797e616a9095c4693c9f0

  • SSDEEP

    12288:2Bq1/STF3fQ4jC6tykkXvWQjhes30bhzBBXxSqMp1UK1Ea7:H/SG4jYv7n3izBKp1UK1Ea

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db.exe
    "C:\Users\Admin\AppData\Local\Temp\cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:980
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\FolderName\mata.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe "C:\Users\Admin\AppData\Local\Temp\FolderName\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1716
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat" "
          4⤵
            PID:436
      • C:\Users\Admin\AppData\Local\Temp\notepad .exe
        "C:\Users\Admin\AppData\Local\Temp\notepad .exe"
        2⤵
          PID:564
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\FolderName\stres.bat" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:848
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 300
            3⤵
            • Delays execution with timeout.exe
            PID:1428

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\FolderName\file.exe

        Filesize

        713KB

        MD5

        1194cdb39cd66f8fd31141ea1a2438f2

        SHA1

        c2f7b617b631c8ea25263f3343c343cb0b9a71f9

        SHA256

        cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db

        SHA512

        19eb5db13798343bfa5b339cbb52e9be169565e889701b58157b587003632915e7c952b4ad616cf8844fd2744b985a789fafb9fef78797e616a9095c4693c9f0

      • C:\Users\Admin\AppData\Local\Temp\FolderName\invs.vbs

        Filesize

        78B

        MD5

        c578d9653b22800c3eb6b6a51219bbb8

        SHA1

        a97aa251901bbe179a48dbc7a0c1872e163b1f2d

        SHA256

        20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

        SHA512

        3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

      • C:\Users\Admin\AppData\Local\Temp\FolderName\mata.bat

        Filesize

        69B

        MD5

        c96a3b31fc4a115c977ce5d8a3256f4f

        SHA1

        8c71b0d75099af30ac1fe33266e3970b47ba716d

        SHA256

        a5b672a4863abcf46556d2e606b2833e8897a3206e554ad93043a82a792df49e

        SHA512

        f4337e85ca0b3c0242c35a09f1ff7154c9e37ea3c7de3c2337385fb4b57e25a8550877ce2f37d023c94a3fa69b2b4e003207790297879d29a5bbe4856d0a0f48

      • C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat

        Filesize

        71B

        MD5

        068b098f8c807465a86da0256d8e22c7

        SHA1

        71f4205e5c884f829fc3f500cc4adf3828404a58

        SHA256

        1724823b6967f9d2931c3b55f09ee095a69ad8e13ae7b338ee22a5c56eeaf05d

        SHA512

        e9432cdebd7dff6f96aad870ea8e9713f618cadcfa720c0a10cd4d62b3f8d129d5efb1e170e6712afc23157d45f5e8c8f3bce80310a27d1e994e6e1af5314626

      • C:\Users\Admin\AppData\Local\Temp\FolderName\rundll11-.txt

        Filesize

        713KB

        MD5

        1194cdb39cd66f8fd31141ea1a2438f2

        SHA1

        c2f7b617b631c8ea25263f3343c343cb0b9a71f9

        SHA256

        cb93f6f8fb6b5d26e2301673e3a61df0857043b358d48227d58274c0d567d8db

        SHA512

        19eb5db13798343bfa5b339cbb52e9be169565e889701b58157b587003632915e7c952b4ad616cf8844fd2744b985a789fafb9fef78797e616a9095c4693c9f0

      • C:\Users\Admin\AppData\Local\Temp\FolderName\stres.bat

        Filesize

        211B

        MD5

        fcea7e008224fa9f82bba83e3562baf0

        SHA1

        f8ccd10830a0e5e979099a022fb07019e2ac479e

        SHA256

        0d9caf1dc4c3317085c4fd81a56df506c99dacb883c341a2250d8ef9beffbdba

        SHA512

        5083a7b3500841b05c879151cde2dda997cf70fbe0dbec5b218dc5efe37084af976fcb67511c92fff21f6b0b5dafdc01f03b448b731db56e7f1f851017467304

      • \Users\Admin\AppData\Local\Temp\notepad .exe

        Filesize

        52KB

        MD5

        278edbd499374bf73621f8c1f969d894

        SHA1

        a81170af14747781c5f5f51bb1215893136f0bc0

        SHA256

        c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

        SHA512

        93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

      • memory/436-63-0x0000000000000000-mapping.dmp

      • memory/848-66-0x0000000000000000-mapping.dmp

      • memory/980-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

        Filesize

        8KB

      • memory/980-65-0x00000000743D0000-0x000000007497B000-memory.dmp

        Filesize

        5.7MB

      • memory/980-55-0x00000000743D0000-0x000000007497B000-memory.dmp

        Filesize

        5.7MB

      • memory/980-70-0x00000000743D0000-0x000000007497B000-memory.dmp

        Filesize

        5.7MB

      • memory/1428-69-0x0000000000000000-mapping.dmp

      • memory/1716-59-0x0000000000000000-mapping.dmp

      • memory/1736-56-0x0000000000000000-mapping.dmp