Analysis

  • max time kernel
    66s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-02-2021 10:18

General

  • Target

    frank_2021-02-22_02-03.exe

  • Size

    347KB

  • MD5

    5ae9b47fd2a505049a7f6f405f6f512c

  • SHA1

    fe53ef52e27877450865d074ef2f3e67e2af2ca3

  • SHA256

    708c8e26689e83a82460bfcf611f78eaf39ee6e77e12c23ea012489deb57e72c

  • SHA512

    677ea2876ddf6ba738e7eee769c100264b4eaf850ffbf92dba531d1b0351b43ac235c70500bacea8ddd502aefc133ffa0330e855ca3a9eeb35cac300dfca4ec5

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\frank_2021-02-22_02-03.exe
    "C:\Users\Admin\AppData\Local\Temp\frank_2021-02-22_02-03.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\frank_2021-02-22_02-03.exe
      "C:\Users\Admin\AppData\Local\Temp\frank_2021-02-22_02-03.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3680
      • C:\Windows\SysWOW64\cmd.exe
        /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\frank_2021-02-22_02-03.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3548
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 3
          4⤵
          • Delays execution with timeout.exe
          PID:2908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1400-2-0x00000000025C0000-0x00000000025C1000-memory.dmp

    Filesize

    4KB

  • memory/1400-3-0x0000000002570000-0x00000000025A9000-memory.dmp

    Filesize

    228KB

  • memory/2908-8-0x0000000000000000-mapping.dmp

  • memory/3548-7-0x0000000000000000-mapping.dmp

  • memory/3680-5-0x000000000041EA5D-mapping.dmp

  • memory/3680-4-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/3680-6-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB