Analysis

  • max time kernel
    112s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    05/03/2021, 16:02

General

  • Target
    Smash Installer for Windows/1.exe
  • Size 877KB
  • Sample210305-kal2t1vmv2
  • SHA256 1fd155e7fc507bd4df5d7c8ee6f5bf97cff1c38c8d2980d5ab6724065f22e2dc
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • RedLine

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

  • Executes dropped EXE 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Smash Installer for Windows\1.exe
    "C:\Users\Admin\AppData\Local\Temp\Smash Installer for Windows\1.exe"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
      C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3608
      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        "{path}"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1344

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1344-26-0x00000000059D0000-0x00000000059D1000-memory.dmp

        memory/1344-28-0x0000000005A70000-0x0000000005A71000-memory.dmp

        memory/1344-36-0x0000000008A00000-0x0000000008A01000-memory.dmp

        memory/1344-35-0x0000000005331000-0x0000000005332000-memory.dmp

        memory/1344-34-0x0000000006F90000-0x0000000006F91000-memory.dmp

        memory/1344-31-0x00000000073B0000-0x00000000073B1000-memory.dmp

        memory/1344-30-0x0000000006CB0000-0x0000000006CB1000-memory.dmp

        memory/1344-29-0x0000000005CD0000-0x0000000005CD1000-memory.dmp

        memory/1344-15-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/1344-27-0x0000000005A30000-0x0000000005A31000-memory.dmp

        memory/1344-25-0x0000000005F40000-0x0000000005F41000-memory.dmp

        memory/1344-19-0x0000000073A40000-0x000000007412E000-memory.dmp

        memory/1344-22-0x00000000051E0000-0x00000000051E1000-memory.dmp

        memory/1344-23-0x0000000005330000-0x0000000005331000-memory.dmp

        memory/1344-24-0x0000000005780000-0x0000000005781000-memory.dmp

        memory/3608-5-0x0000000073A40000-0x000000007412E000-memory.dmp

        memory/3608-6-0x0000000000370000-0x0000000000371000-memory.dmp

        memory/3608-8-0x00000000051F0000-0x00000000051F1000-memory.dmp

        memory/3608-14-0x0000000008550000-0x0000000008597000-memory.dmp

        memory/3608-13-0x0000000004EB0000-0x0000000004EBB000-memory.dmp

        memory/3608-12-0x0000000008330000-0x0000000008331000-memory.dmp

        memory/3608-11-0x0000000004F10000-0x0000000004F11000-memory.dmp

        memory/3608-10-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

        memory/3608-9-0x0000000004CF0000-0x0000000004CF1000-memory.dmp