Resubmissions

11/07/2022, 14:55

220711-sar47sabcq10

08/07/2022, 11:16

220708-nc4tkacaar10

Analysis

  • max time kernel
    112s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08/07/2022, 11:16

General

  • Target
    41afcc620b9a87add5322f3f17d563bb.exe
  • Size 75KB
  • Sample220708-nc4tkacaar
  • SHA256 7418fd3ec75f43bed921ecf2df4ba922fbd86c2e1e158bf309bbee13d4374125
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • netwire

C2
  • 194.5.98.176:3363

  • 194.5.98.176:3365

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • offline_keylogger

    true

  • password

    power2022

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 4 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41afcc620b9a87add5322f3f17d563bb.exe
    "C:\Users\Admin\AppData\Local\Temp\41afcc620b9a87add5322f3f17d563bb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4472
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
        PID:3644

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3644-147-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/3644-146-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/3644-145-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/3644-143-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/4236-140-0x0000000029B50000-0x0000000029BE2000-memory.dmp

          memory/4236-130-0x0000000000220000-0x0000000000238000-memory.dmp

          memory/4236-141-0x000000002A1A0000-0x000000002A744000-memory.dmp

          memory/4472-134-0x0000000005730000-0x0000000005752000-memory.dmp

          memory/4472-139-0x0000000006C00000-0x0000000006C1A000-memory.dmp

          memory/4472-138-0x0000000007D60000-0x00000000083DA000-memory.dmp

          memory/4472-137-0x00000000066F0000-0x000000000670E000-memory.dmp

          memory/4472-136-0x00000000060B0000-0x0000000006116000-memory.dmp

          memory/4472-135-0x0000000005F90000-0x0000000005FF6000-memory.dmp

          memory/4472-133-0x00000000058B0000-0x0000000005ED8000-memory.dmp

          memory/4472-132-0x0000000002DD0000-0x0000000002E06000-memory.dmp