Analysis

  • max time kernel
    45s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17-11-2020 12:34

General

  • Target

    41d4bcdb9da7c94b1b5e6e88a8518390.exe

  • Size

    344KB

  • MD5

    f863b6b0881ef40a9919d966ea754c87

  • SHA1

    74f2013fc0df5a96d5edfcd77659fabe260c4a1d

  • SHA256

    1b189602123e4dba4522d442877fb0862a8fbbc4cc6d187954ba27039bea7d9c

  • SHA512

    1d3029129a596e9e049590164f04983c7f3cd94a2e94948a30f82279527e4a8b85f714b18b02d709ea42c3f119a1fefc627bd31b5077123b1a03db375224b735

Malware Config

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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41d4bcdb9da7c94b1b5e6e88a8518390.exe
    "C:\Users\Admin\AppData\Local\Temp\41d4bcdb9da7c94b1b5e6e88a8518390.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:740
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 3
        3⤵
        • Runs ping.exe
        PID:616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/616-7-0x0000000000000000-mapping.dmp

  • memory/740-6-0x0000000000000000-mapping.dmp

  • memory/1320-0-0x000000000087C000-0x000000000087D000-memory.dmp

    Filesize

    4KB

  • memory/1320-1-0x0000000002080000-0x0000000002091000-memory.dmp

    Filesize

    68KB

  • memory/1320-2-0x0000000002200000-0x0000000002211000-memory.dmp

    Filesize

    68KB

  • memory/1320-3-0x0000000074570000-0x0000000074C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/1320-4-0x00000000021C0000-0x00000000021E4000-memory.dmp

    Filesize

    144KB

  • memory/1320-5-0x0000000002430000-0x0000000002452000-memory.dmp

    Filesize

    136KB