Analysis

  • max time kernel
    119s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    24-10-2021 05:39

General

  • Target

    Stumpers.exe

  • Size

    389KB

  • MD5

    600a6843f8c555c0d54de21596daf2f5

  • SHA1

    0cb686583dacfa4d6e5e7309ad323b02df723c16

  • SHA256

    a059841f9de1c6f01abf02a6f111f871185ff8cfcbfb8a841bb2401164960fe8

  • SHA512

    3bc3ec7ebd5847c88a706cc8fa0b2d741bd2b1ec59de92611e0207791f764e8b29e2f47c391e3827e56c020931e1643ecf1e59939e35111b52fe0c2293ca792f

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
    "C:\Users\Admin\AppData\Local\Temp\Stumpers.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
      C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
      2⤵
        PID:640
      • C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
        C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
        2⤵
          PID:1652
        • C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
          C:\Users\Admin\AppData\Local\Temp\Stumpers.exe
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:660

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/660-57-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-59-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-58-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-60-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-61-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-62-0x0000000000418D66-mapping.dmp
      • memory/660-63-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB

      • memory/660-65-0x00000000049D0000-0x00000000049D1000-memory.dmp
        Filesize

        4KB

      • memory/1172-54-0x0000000000130000-0x0000000000131000-memory.dmp
        Filesize

        4KB

      • memory/1172-56-0x00000000048F0000-0x00000000048F1000-memory.dmp
        Filesize

        4KB