Analysis

  • max time kernel
    147s
  • max time network
    183s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    07/09/2021, 06:26

General

  • Target
    yes11.exe
  • Size 816KB
  • Sample210907-g68w2sfcfl
  • SHA256 284fa9b7685ebc3e71cf5d9956abe26103c8d9bafc29d3d417d4924dadfec00e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • 0815

C2
  • 185.206.212.37:1134

Signatures

  • RedLine

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

  • RedLine Payload 2 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yes11.exe
    "C:\Users\Admin\AppData\Local\Temp\yes11.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\yes11.exe
      "{path}"
      2⤵
        PID:768
      • C:\Users\Admin\AppData\Local\Temp\yes11.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1172

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1172-74-0x0000000000FD2000-0x0000000000FD3000-memory.dmp

          memory/1172-71-0x0000000000480000-0x00000000004AE000-memory.dmp

          memory/1172-76-0x0000000000FD4000-0x0000000000FD6000-memory.dmp

          memory/1172-72-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/1172-73-0x0000000000FD1000-0x0000000000FD2000-memory.dmp

          memory/1172-75-0x0000000000FD3000-0x0000000000FD4000-memory.dmp

          memory/1172-68-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/1172-70-0x0000000000370000-0x00000000003A0000-memory.dmp

          memory/1648-62-0x0000000000450000-0x0000000000451000-memory.dmp

          memory/1648-67-0x0000000000210000-0x000000000024D000-memory.dmp

          memory/1648-66-0x0000000005620000-0x0000000005676000-memory.dmp

          memory/1648-60-0x0000000001030000-0x0000000001031000-memory.dmp

          memory/1648-65-0x0000000000400000-0x0000000000404000-memory.dmp

          memory/1648-64-0x0000000000CD0000-0x0000000000D30000-memory.dmp

          memory/1648-63-0x00000000002A0000-0x00000000002A1000-memory.dmp