Analysis

  • max time kernel
    28s
  • max time network
    27s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    16/02/2021, 18:57

General

  • Target
    9f6e248d46dd74f5c1e1c28cf74dd214.exe
  • Size 512KB
  • Sample210216-tk9qa9lrjs
  • SHA256 9024b91ce7d51dcba37b1c4d50e89d0819ef236f2e8adaac8e935dbdc49de99c
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f6e248d46dd74f5c1e1c28cf74dd214.exe
    "C:\Users\Admin\AppData\Local\Temp\9f6e248d46dd74f5c1e1c28cf74dd214.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1712

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1396-7-0x000007FEF7160000-0x000007FEF73DA000-memory.dmp

        memory/1712-11-0x00000000069A0000-0x00000000069B1000-memory.dmp

        memory/1712-16-0x0000000006CD0000-0x0000000006CFC000-memory.dmp

        memory/1712-21-0x00000000095F4000-0x00000000095F6000-memory.dmp

        memory/1712-20-0x0000000006D00000-0x0000000006D2A000-memory.dmp

        memory/1712-19-0x00000000095F3000-0x00000000095F4000-memory.dmp

        memory/1712-12-0x0000000006A80000-0x0000000006A91000-memory.dmp

        memory/1712-14-0x0000000000290000-0x00000000002C6000-memory.dmp

        memory/1712-15-0x0000000000400000-0x0000000000439000-memory.dmp

        memory/1712-13-0x0000000073A50000-0x000000007413E000-memory.dmp

        memory/1712-17-0x00000000095F1000-0x00000000095F2000-memory.dmp

        memory/1712-18-0x00000000095F2000-0x00000000095F3000-memory.dmp

        memory/1752-5-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/1752-2-0x00000000009A0000-0x00000000009B1000-memory.dmp

        memory/1752-3-0x0000000075EB1000-0x0000000075EB3000-memory.dmp

        memory/1752-4-0x0000000000880000-0x000000000094F000-memory.dmp