Analysis

  • max time kernel
    120s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    25/09/2021, 20:31

General

  • Target
    0c90ff848d05b4ea21c46896d421f825.exe
  • Size 547KB
  • Sample210925-zaqppsdghp
  • SHA256 a4260ab00a78d568cc36ad8a43cff5633bfd365e34d2378ccc11f42a56067f76
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • mix26.09

C2
  • 185.215.113.15:6043

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

    suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Downloads MZ/PE file
  • Executes dropped EXE 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c90ff848d05b4ea21c46896d421f825.exe
    "C:\Users\Admin\AppData\Local\Temp\0c90ff848d05b4ea21c46896d421f825.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Roaming\sliders\monns.exe
      monns.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2548

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2064-116-0x0000000000400000-0x0000000000510000-memory.dmp

        memory/2064-115-0x00000000022A0000-0x000000000236F000-memory.dmp

        memory/2548-127-0x0000000005690000-0x0000000005691000-memory.dmp

        memory/2548-129-0x0000000002510000-0x0000000002511000-memory.dmp

        memory/2548-121-0x0000000000400000-0x00000000004C6000-memory.dmp

        memory/2548-122-0x0000000000800000-0x000000000081F000-memory.dmp

        memory/2548-123-0x0000000004B80000-0x0000000004B81000-memory.dmp

        memory/2548-124-0x0000000002450000-0x000000000246E000-memory.dmp

        memory/2548-125-0x0000000005080000-0x0000000005081000-memory.dmp

        memory/2548-126-0x0000000002550000-0x0000000002551000-memory.dmp

        memory/2548-128-0x0000000002590000-0x0000000002591000-memory.dmp

        memory/2548-130-0x0000000002512000-0x0000000002513000-memory.dmp

        memory/2548-120-0x00000000004D0000-0x000000000061A000-memory.dmp

        memory/2548-131-0x0000000002513000-0x0000000002514000-memory.dmp

        memory/2548-132-0x0000000002514000-0x0000000002516000-memory.dmp

        memory/2548-133-0x00000000057A0000-0x00000000057A1000-memory.dmp

        memory/2548-134-0x00000000069A0000-0x00000000069A1000-memory.dmp

        memory/2548-135-0x0000000006B70000-0x0000000006B71000-memory.dmp

        memory/2548-136-0x0000000007120000-0x0000000007121000-memory.dmp

        memory/2548-137-0x0000000007470000-0x0000000007471000-memory.dmp

        memory/2548-138-0x0000000007560000-0x0000000007561000-memory.dmp

        memory/2548-139-0x0000000007760000-0x0000000007761000-memory.dmp