Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    02/06/2021, 11:25

General

  • Target
    57e49c2f93819090ae5ca6c336788c80.exe
  • Size 682KB
  • Sample210602-astsxed87x
  • SHA256 41a0df72651937574df4ef7141fc5153285a7fda23fc7db8f7772849ace8cfa9
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • MIX 02.06

C2
  • 185.215.113.17:18597

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57e49c2f93819090ae5ca6c336788c80.exe
    "C:\Users\Admin\AppData\Local\Temp\57e49c2f93819090ae5ca6c336788c80.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
      edspolishpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:608

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/608-66-0x0000000000230000-0x000000000025E000-memory.dmp

        memory/608-67-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/608-68-0x0000000000850000-0x000000000086A000-memory.dmp

        memory/608-69-0x0000000000870000-0x0000000000888000-memory.dmp

        memory/608-71-0x0000000001F92000-0x0000000001F93000-memory.dmp

        memory/608-70-0x0000000001F91000-0x0000000001F92000-memory.dmp

        memory/608-72-0x0000000001F93000-0x0000000001F94000-memory.dmp

        memory/608-73-0x0000000001F94000-0x0000000001F96000-memory.dmp

        memory/756-62-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/756-61-0x0000000000230000-0x00000000002FE000-memory.dmp

        memory/756-60-0x00000000750C1000-0x00000000750C3000-memory.dmp