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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2023, 17:32

General

  • Target

    NEAS.f215c6f1e265c4cda451e50a892592f0.dll

  • Size

    323KB

  • MD5

    f215c6f1e265c4cda451e50a892592f0

  • SHA1

    a93483b0f23a6ff097eaf686cfb09b4080db57d4

  • SHA256

    49622d1be1fabbf967f39138bbbb2616b202f7535ca63e018343940f0fddcbca

  • SHA512

    0f2e0c4ff616eaf855d6bc9a07e1fa0d8d0424296a12921e4c1deca5b18e131a1cc3ab6aad554d9768bd1e5e1fb93ada515ba9d2bd1e8fea28819ab31ffb0a13

  • SSDEEP

    6144:b0Z+QKmJchRcTHKd0nSrVDcVEOFMOv+UUjFQAaTYpIw6gj5FvVbT9LNuT8MxJnZx:byfOhR6fnSxDceOFMOv+VxQAaiI41PZU

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in System32 directory 56 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 62 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.f215c6f1e265c4cda451e50a892592f0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.f215c6f1e265c4cda451e50a892592f0.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3692
      • C:\Users\Admin\AppData\Local\Temp\A400.tmp
        C:\Users\Admin\AppData\Local\Temp\A400.tmp
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        PID:5008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3692 -s 648
        3⤵
        • Program crash
        PID:2548
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3692 -ip 3692
    1⤵
      PID:756

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\A400.tmp

      Filesize

      145KB

      MD5

      c610e7ccd6859872c585b2a85d7dc992

      SHA1

      362b3d4b72e3add687c209c79b500b7c6a246d46

      SHA256

      14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

      SHA512

      8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

    • C:\Users\Admin\AppData\Local\Temp\A400.tmp

      Filesize

      145KB

      MD5

      c610e7ccd6859872c585b2a85d7dc992

      SHA1

      362b3d4b72e3add687c209c79b500b7c6a246d46

      SHA256

      14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

      SHA512

      8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

    • memory/3692-1-0x0000000001180000-0x00000000011B9000-memory.dmp

      Filesize

      228KB

    • memory/3692-0-0x0000000001180000-0x00000000011B9000-memory.dmp

      Filesize

      228KB

    • memory/3692-2-0x0000000051160000-0x00000000511B7000-memory.dmp

      Filesize

      348KB

    • memory/3692-13-0x0000000051160000-0x00000000511B7000-memory.dmp

      Filesize

      348KB