Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2023, 19:54

General

  • Target

    NEAS.5496539d02433cdad79b51f14c823b10.dll

  • Size

    882KB

  • MD5

    5496539d02433cdad79b51f14c823b10

  • SHA1

    02bf37756f2bf6939755f953874f3bff264c4c3a

  • SHA256

    150b05233f2642737b0ee78cdf2e3e580b4b4c89080ec2afb56993e7441cf032

  • SHA512

    bf5da23c9a496eccec734993c4461fb20588364b53250458e1ebcac5b6978a0bacf55aea225e32ad1ae34fe735e9e89a4405cfa500aaa4bc796aff8af827c384

  • SSDEEP

    12288:sfcaMBkR4bQjTOACprMhqoFyR0dZoQ/qseDJF1RjmYNElWdGbRixr4Z57jTp:uFMBkR42+UYy/TeDJF1Rj/+oQTp

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 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.5496539d02433cdad79b51f14c823b10.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.5496539d02433cdad79b51f14c823b10.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3892
      • C:\Users\Admin\AppData\Local\Temp\E09C.tmp
        C:\Users\Admin\AppData\Local\Temp\E09C.tmp
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        PID:4952
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 632
        3⤵
        • Program crash
        PID:2152
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3892 -ip 3892
    1⤵
      PID:4340

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\E09C.tmp

      Filesize

      145KB

      MD5

      c610e7ccd6859872c585b2a85d7dc992

      SHA1

      362b3d4b72e3add687c209c79b500b7c6a246d46

      SHA256

      14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

      SHA512

      8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

    • C:\Users\Admin\AppData\Local\Temp\E09C.tmp

      Filesize

      145KB

      MD5

      c610e7ccd6859872c585b2a85d7dc992

      SHA1

      362b3d4b72e3add687c209c79b500b7c6a246d46

      SHA256

      14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

      SHA512

      8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

    • memory/3892-0-0x0000000002420000-0x0000000002454000-memory.dmp

      Filesize

      208KB

    • memory/3892-1-0x0000000002420000-0x0000000002454000-memory.dmp

      Filesize

      208KB