Analysis

  • max time kernel
    91s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-02-2023 01:23

General

  • Target

    c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe

  • Size

    237KB

  • MD5

    06167414f9e8c6eeafd8d769c0fb8f1f

  • SHA1

    b20b33f159f92f28f08ba44b2146a4e9b060a50b

  • SHA256

    c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2

  • SHA512

    d3af4323e3cd75661cbf52f7929a9fafbf00dccb7d100502c1730c4c630ad259a78307b2200d1aa9cf61c76d549f4edaec41bc132bf3fecfe47bc66018707319

  • SSDEEP

    3072:Bo1NawlLkh+Q5aeZyjl968GWKolUNe7PPIfvdOGiM/E1+TBVALn2tKTvQzb9jSlC:qDLK+7X1OofjBMk+TBVA/e5Wb

Malware Config

Signatures

  • Detect rhadamanthys stealer shellcode 2 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Blocklisted process makes network request 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Program crash 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe
    "C:\Users\Admin\AppData\Local\Temp\c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Windows\system32\rundll32.exe
      "C:\Users\Admin\AppData\Roaming\nsis_unse566ecc.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8ET|ADUAagBDAGH|AHoAdgBtAE2rAFA|AGkXAHEtAln|SIPsKOgEAgD|AEiDxCjDzMz|zEyJRCQYSIn|VCQQSIlMJAj+XQFIi0QkMEiJ2wQkgQE4SG8ACEhvx0QkEC0B6w6BAV8QSIPAAY8BEIEBt0BIOZYAcyWfA4v|DCRIA8hIi8HXSItMqwFUewAD0f9Ii8qKCYgI6|3BZgVlSIsEJWD+8|AzyUiLUBhI|zvRdDZIg8Ig|0iLAkg7wnQq|2aDeEgYdRpM|4tAUGZBgzhru3QHERFLdQgREHj|EC50BUiLAOuv1UiLSP0AwWoAQP9TVVZXQVRBVe9BVkFXXQFmgTn|TVpNi|hMi|K|SIvZD4X88|BM|2NJPEGBPAlQv0UAAA+F6vPwQe+LhAmI8|CFwEi|jTwBD4TWahGDd7wJjC0BD4THOQH|i2cgRItfHIv|dyREi08YTAP|4UwD2UgD8TN|yUWFyQ+EpPPw|02LxEGLEEUz|9JIA9OKAoTA|3QdQcHKDQ++vcD6AAFEA9C|EXX|7EGB+qr8DXz|dA6DwQFJg8D|BEE7yXNp68b|i8EPtwxORYv|LItMA+t0WDN97aoQdFFBixTBAP|TM8mKAkyLwm|rD8HJyBEDyOUQ7wFBigDVEO0zwD8z9kE7DLbgEKYA|4PGAYP4CHLu|+sKSIvLQf|Vv0mJBPeDxeQQxL8EO28Ycq9mAUH|X0FeQV1BXF|3Xl1bMxdIgexg|QFkAIvp6Gb+|3||SIXAD4SYdSDrTI2vAYsrEMgz||vom30gjV8ETI3|RUYz0ovL|1T7JGiAIEyL4A+E9Wt1IEWoEDPAi9O+kSBIiXwkIKYgcH6AIEiL8A+ES3Ug|qYgUEiNVghEjb9HQEiNjCSFEUjfi9jofP1+II1W1UjeIBDiIczz8Ohnfu8gRIsGjVcIQSB6piBYyiGJhCSAhxLt3vPwiw7aIFiJjLEkcREHMJEg6DHvIIv9nC0yTItdOkiD9|tsSIogMEyJZN8kOEyLpBoyTIndXIQBhCTchxGGknY5AY1HSzCMJPDz8L9Ji9To6fwFMIrdnHgySI2EeDJBgP|zIY1PbEQwGP6kAoPpAXXzgbz+eDIhUmV4dU2Ld4Qk9CIxlCT4NQH|wkg72HI4g|p|bHYzRI1JQPoAT5RBuACYAKYgQMoiz|h0GUS2MMAxSY33VCRskSBJg+hsu+hrgjBIi86mIHj|SIX|dBKLVUL5TI4wGzFIjUwkQB||10iBxHQhYSQtCAAtAQ==
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • outlook_office_path
      • outlook_win_path
      PID:4092
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 4092 -s 524
        3⤵
        • Program crash
        PID:4260
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 696
      2⤵
      • Program crash
      PID:3204
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5084 -ip 5084
    1⤵
      PID:4364
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 368 -p 4092 -ip 4092
      1⤵
        PID:4692

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\nsis_unse566ecc.dll

        Filesize

        49KB

        MD5

        832890fded186835970d1d3302590138

        SHA1

        5385703e9dcde43e60928b2e9c941b7232468a6a

        SHA256

        438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

        SHA512

        5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

      • C:\Users\Admin\AppData\Roaming\nsis_unse566ecc.dll

        Filesize

        49KB

        MD5

        832890fded186835970d1d3302590138

        SHA1

        5385703e9dcde43e60928b2e9c941b7232468a6a

        SHA256

        438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

        SHA512

        5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

      • memory/4092-140-0x000002E0CFD50000-0x000002E0CFD57000-memory.dmp

        Filesize

        28KB

      • memory/4092-148-0x00007FF4CEE30000-0x00007FF4CEF2A000-memory.dmp

        Filesize

        1000KB

      • memory/4092-147-0x00007FF9DDFB0000-0x00007FF9DDFC2000-memory.dmp

        Filesize

        72KB

      • memory/4092-146-0x00007FF4CEE30000-0x00007FF4CEF2A000-memory.dmp

        Filesize

        1000KB

      • memory/4092-141-0x00007FF4CEE30000-0x00007FF4CEF2A000-memory.dmp

        Filesize

        1000KB

      • memory/4092-137-0x0000000000000000-mapping.dmp

      • memory/5084-136-0x0000000000B01000-0x0000000000B12000-memory.dmp

        Filesize

        68KB

      • memory/5084-132-0x0000000000ADE000-0x0000000000AFE000-memory.dmp

        Filesize

        128KB

      • memory/5084-142-0x0000000000ADE000-0x0000000000AFE000-memory.dmp

        Filesize

        128KB

      • memory/5084-143-0x0000000000B01000-0x0000000000B12000-memory.dmp

        Filesize

        68KB

      • memory/5084-144-0x0000000000400000-0x0000000000759000-memory.dmp

        Filesize

        3.3MB

      • memory/5084-145-0x0000000002550000-0x000000000256D000-memory.dmp

        Filesize

        116KB

      • memory/5084-135-0x0000000002550000-0x000000000256D000-memory.dmp

        Filesize

        116KB

      • memory/5084-134-0x0000000000400000-0x0000000000759000-memory.dmp

        Filesize

        3.3MB

      • memory/5084-133-0x00000000024A0000-0x00000000024C5000-memory.dmp

        Filesize

        148KB