Analysis

  • max time kernel
    61s
  • max time network
    89s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    29/07/2021, 08:50

General

  • Target
    886cc521138c339c9278199461a50491.exe
  • Size 624KB
  • Sample210729-fv41a4bxtj
  • SHA256 5940ba33eed4285ac4adc24b4196e812c7f11e20e45290cbf89c856a80c7cac8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • MIX 29.07

C2
  • 185.215.113.17:18597

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
  • 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
  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\886cc521138c339c9278199461a50491.exe
    "C:\Users\Admin\AppData\Local\Temp\886cc521138c339c9278199461a50491.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Roaming\dahgarq\apineshpp.exe
      apineshpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1528

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1028-61-0x00000000005A0000-0x000000000066C000-memory.dmp

        memory/1028-60-0x00000000750C1000-0x00000000750C3000-memory.dmp

        memory/1028-62-0x0000000000400000-0x0000000000521000-memory.dmp

        memory/1528-68-0x0000000000400000-0x00000000004D7000-memory.dmp

        memory/1528-67-0x0000000000230000-0x000000000025F000-memory.dmp

        memory/1528-69-0x00000000005C0000-0x00000000005DB000-memory.dmp

        memory/1528-70-0x0000000001F40000-0x0000000001F5A000-memory.dmp

        memory/1528-73-0x00000000047F3000-0x00000000047F4000-memory.dmp

        memory/1528-72-0x00000000047F2000-0x00000000047F3000-memory.dmp

        memory/1528-71-0x00000000047F1000-0x00000000047F2000-memory.dmp

        memory/1528-74-0x00000000047F4000-0x00000000047F6000-memory.dmp