Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    23/02/2022, 12:31

General

  • Target
    e0149b299e7295b128b1718310805095.exe
  • Size 662KB
  • Sample220223-pp2emsbddm
  • SHA256 79fa3363eeb543f7b97729d016d926820156b2a549a78000899a2a3b44721c8e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • mix23.02

C2
  • 185.215.113.17:7700

Attributes
  • auth_value

    01f69adbb995dbb7baf5965c625438ea

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • 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
  • Loads dropped DLL 2 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e0149b299e7295b128b1718310805095.exe
    "C:\Users\Admin\AppData\Local\Temp\e0149b299e7295b128b1718310805095.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Users\Admin\AppData\Roaming\Green\neofim.exe
      neofim.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1092

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1092-67-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

        memory/1092-68-0x0000000004BA1000-0x0000000004BA2000-memory.dmp

        memory/1092-72-0x0000000004BA4000-0x0000000004BA6000-memory.dmp

        memory/1092-70-0x0000000004BA2000-0x0000000004BA3000-memory.dmp

        memory/1092-71-0x0000000004BA3000-0x0000000004BA4000-memory.dmp

        memory/1092-63-0x0000000000760000-0x0000000000794000-memory.dmp

        memory/1092-65-0x0000000000250000-0x0000000000289000-memory.dmp

        memory/1092-64-0x0000000000220000-0x000000000024B000-memory.dmp

        memory/1092-66-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1092-69-0x0000000002250000-0x0000000002282000-memory.dmp

        memory/1632-59-0x0000000000400000-0x00000000004D4000-memory.dmp

        memory/1632-55-0x00000000006BB000-0x0000000000727000-memory.dmp

        memory/1632-56-0x00000000006BB000-0x0000000000727000-memory.dmp

        memory/1632-57-0x0000000000250000-0x000000000031E000-memory.dmp

        memory/1632-58-0x0000000075801000-0x0000000075803000-memory.dmp