Analysis

  • max time kernel
    73s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 20:25

General

  • Target

    ac6a61494e80c341a697337a58bdb360d90f664209552da1ca7d6883f2a162cd.exe

  • Size

    581KB

  • MD5

    3f0ecd1a87ee7dfaf4b312c3a4c5d46f

  • SHA1

    db22305b0e6158c9f2dd6b91021dd4be2d946ecf

  • SHA256

    ac6a61494e80c341a697337a58bdb360d90f664209552da1ca7d6883f2a162cd

  • SHA512

    0620caf458419f9b9be9591e51a2a98e647c7e384e22048dcd739b546c88ad77b899ac5189bde7117aa04f77fc141c8bf4e220eb72336559a07630016beee665

  • SSDEEP

    12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0U4:ufplNFgxG5eZngb0P

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 7 IoCs
  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac6a61494e80c341a697337a58bdb360d90f664209552da1ca7d6883f2a162cd.exe
    "C:\Users\Admin\AppData\Local\Temp\ac6a61494e80c341a697337a58bdb360d90f664209552da1ca7d6883f2a162cd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
      C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl3
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1320
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1320 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2044
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
        3⤵
          PID:1756
      • C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
        C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:872
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
          3⤵
            PID:472
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\1.vbs"
            3⤵
              PID:1672

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nbfile0.exe

          Filesize

          467KB

          MD5

          74869a0346ab36bbba85022612505121

          SHA1

          2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

          SHA256

          6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

          SHA512

          723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

        • C:\Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • C:\Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\9GD4CAHR.txt

          Filesize

          608B

          MD5

          aed9ffb1579a4c4eeb7abfe3aedcac9f

          SHA1

          60601a305089b53dee03002b43af85e12b607817

          SHA256

          e101101c5c3b0547d3dc69d4612b0eb8cdd9c0fefbd3d8411b164b0af5fcc6d0

          SHA512

          58331561ee50a45cbcc7673bb4859d3818faae41e41f11cbd7527812bd56d549f02b49ef975f2f4350df11496f46d64ddacaf833cba7e53157a8181ffd619e19

        • C:\newsetup.vbs

          Filesize

          651B

          MD5

          4736e7158c27f244482f5a614b9dbdae

          SHA1

          d3a0e95a81e9e3ec95cfd596b25749a0e24e27b9

          SHA256

          b8229bc8d6b0013858fb9599cb510afa4566a439164b2c7444c449540a124acc

          SHA512

          cebf895dd3ec3822c42b78bac49c685b063cb5afcbcfb3850b073cb118d086c5fa75ec50b6e73d90e14f2c6b595752ad87910b8cf27378424d72a9ea309bf824

        • \Users\Admin\AppData\Local\Temp\nbfile0.exe

          Filesize

          467KB

          MD5

          74869a0346ab36bbba85022612505121

          SHA1

          2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

          SHA256

          6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

          SHA512

          723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

        • \Users\Admin\AppData\Local\Temp\nbfile0.exe

          Filesize

          467KB

          MD5

          74869a0346ab36bbba85022612505121

          SHA1

          2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

          SHA256

          6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

          SHA512

          723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

        • \Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • \Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • \Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • \Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • \Users\Admin\AppData\Local\Temp\nbfile1.exe

          Filesize

          52KB

          MD5

          c4ddf11ebdbf9d8397d710d2cb4e2fab

          SHA1

          8008c97e7d6ff92deb3e1755a614f4afedca92b9

          SHA256

          67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

          SHA512

          3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

        • memory/872-68-0x0000000075E11000-0x0000000075E13000-memory.dmp

          Filesize

          8KB

        • memory/956-63-0x0000000000400000-0x000000000048A000-memory.dmp

          Filesize

          552KB

        • memory/956-59-0x0000000000400000-0x000000000048A000-memory.dmp

          Filesize

          552KB

        • memory/1928-58-0x00000000004A0000-0x000000000052A000-memory.dmp

          Filesize

          552KB