Analysis

  • max time kernel
    58s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01-11-2020 10:18

General

  • Target

    1.exe

  • Size

    1.7MB

  • MD5

    b94ad575e604d244b6f57abb25326abe

  • SHA1

    ff098b3d4acdacda023fd51961a26f4a8eea719e

  • SHA256

    96fadfece02fcc7d1b3f8e98c1df30dc61e9e8298543de46b54ad088f18aec59

  • SHA512

    8d594e8aa003748a54f2b3491dd30f507f92f512231430b682bb302729b2e3b3b0ce8ec73062d2285775750666d63d5efb3519cdf028c258222e3b7ea196abc5

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 4 IoCs
  • Deletes itself 1 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
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\1.exe
      "C:\Users\Admin\AppData\Local\Temp\1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del "C:\Users\Admin\AppData\Local\Temp\1.exe"
        3⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 3
          4⤵
          • Runs ping.exe
          PID:940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/940-13-0x0000000000000000-mapping.dmp

  • memory/1612-5-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1612-6-0x000000000042064A-mapping.dmp

  • memory/1612-7-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1612-8-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1612-9-0x0000000074110000-0x00000000747FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1760-12-0x0000000000000000-mapping.dmp

  • memory/1804-0-0x0000000074110000-0x00000000747FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1804-1-0x00000000012A0000-0x00000000012A1000-memory.dmp

    Filesize

    4KB

  • memory/1804-3-0x0000000000CE0000-0x0000000000D20000-memory.dmp

    Filesize

    256KB

  • memory/1804-4-0x00000000002F0000-0x0000000000306000-memory.dmp

    Filesize

    88KB