Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 03:36

General

  • Target

    d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll

  • Size

    180KB

  • MD5

    ea09d18a8cc061db85f745cae0306d0a

  • SHA1

    979cd4d046b86733b69de4f62aaf97fa218c0c5b

  • SHA256

    d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2

  • SHA512

    50d505c4a7b70dde6205390550c3b673b0a491468471685063f2f541d1e1be742c739fc4bf21a456a9ca56b1e83f79d79a6a2f8f6b8be77cfc5865b669f61e94

  • SSDEEP

    3072:R/q9D8TGRg+2P0XSE0+7GHms91/Eg+lJKkarUTKeaVa/+UJCmwEgC5Vi8tvuGM:I8CgNPISQXsj/MlmYHOa/BJlwEgC5Vin

Malware Config

Signatures

  • Detects executables containing base64 encoded User Agent 3 IoCs
  • Blocklisted process makes network request 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Adds Run key to start application
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1752-0-0x0000000010000000-0x0000000010065000-memory.dmp

    Filesize

    404KB

  • memory/1752-2-0x0000000010000000-0x0000000010065000-memory.dmp

    Filesize

    404KB

  • memory/1752-1-0x0000000010000000-0x0000000010065000-memory.dmp

    Filesize

    404KB

  • memory/1752-4-0x0000000010000000-0x0000000010065000-memory.dmp

    Filesize

    404KB