Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2022 17:42

General

  • Target

    e539e30456d5824fd3fa5b200f5578a8.exe

  • Size

    556KB

  • MD5

    e539e30456d5824fd3fa5b200f5578a8

  • SHA1

    df6effe3512f60d932c99f66cbc57351bacbac14

  • SHA256

    e7b7b828f1add6b862ccd69e5b0ecab7fc0926ed6e91f3f273c75a22edef2927

  • SHA512

    daf01e697e65a4d971da779c356fd65b44339a363bbb9649f2b6a2da0ceffabb6462dc7e81c53b52f1714fc204d816017f98cfaf55956d150c45a5408a0617ad

Malware Config

Extracted

Family

netwire

C2

185.140.53.154:3343

185.140.53.154:3345

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

    Pass@2022

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 3 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e539e30456d5824fd3fa5b200f5578a8.exe
    "C:\Users\Admin\AppData\Local\Temp\e539e30456d5824fd3fa5b200f5578a8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RkvSUOa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2464
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RkvSUOa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39AD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3180
    • C:\Users\Admin\AppData\Local\Temp\e539e30456d5824fd3fa5b200f5578a8.exe
      "C:\Users\Admin\AppData\Local\Temp\e539e30456d5824fd3fa5b200f5578a8.exe"
      2⤵
        PID:2260

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp39AD.tmp

      Filesize

      1KB

      MD5

      230228e029d02dcc041256eecd63fabe

      SHA1

      da4586ec306ef8d5119b69950c180e205f2d8b45

      SHA256

      133479318ef926795579feb2b4465ad86495ae5a328015e6d3eb07ffa262a4e8

      SHA512

      4b1356aac344849158415a6663b9410710219a5faac45a3edab8402caa63fd3079f02f96f8348441dc00b9b7af3e05746c169b6e0bf56c46a0e1f071c13e307c

    • memory/2260-146-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/2260-143-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/2260-141-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/2260-139-0x0000000000000000-mapping.dmp

    • memory/2464-145-0x0000000006280000-0x00000000062E6000-memory.dmp

      Filesize

      408KB

    • memory/2464-156-0x0000000007E60000-0x0000000007E6E000-memory.dmp

      Filesize

      56KB

    • memory/2464-137-0x0000000003000000-0x0000000003036000-memory.dmp

      Filesize

      216KB

    • memory/2464-135-0x0000000000000000-mapping.dmp

    • memory/2464-158-0x0000000007F50000-0x0000000007F58000-memory.dmp

      Filesize

      32KB

    • memory/2464-140-0x0000000005BE0000-0x0000000006208000-memory.dmp

      Filesize

      6.2MB

    • memory/2464-153-0x0000000007C30000-0x0000000007C4A000-memory.dmp

      Filesize

      104KB

    • memory/2464-157-0x0000000007F70000-0x0000000007F8A000-memory.dmp

      Filesize

      104KB

    • memory/2464-144-0x0000000005A60000-0x0000000005A82000-memory.dmp

      Filesize

      136KB

    • memory/2464-154-0x0000000007CA0000-0x0000000007CAA000-memory.dmp

      Filesize

      40KB

    • memory/2464-147-0x00000000062F0000-0x0000000006356000-memory.dmp

      Filesize

      408KB

    • memory/2464-155-0x0000000007EB0000-0x0000000007F46000-memory.dmp

      Filesize

      600KB

    • memory/2464-148-0x0000000006920000-0x000000000693E000-memory.dmp

      Filesize

      120KB

    • memory/2464-149-0x0000000006EF0000-0x0000000006F22000-memory.dmp

      Filesize

      200KB

    • memory/2464-150-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

      Filesize

      304KB

    • memory/2464-151-0x0000000006ED0000-0x0000000006EEE000-memory.dmp

      Filesize

      120KB

    • memory/2464-152-0x0000000008270000-0x00000000088EA000-memory.dmp

      Filesize

      6.5MB

    • memory/3180-136-0x0000000000000000-mapping.dmp

    • memory/3800-133-0x00000000055E0000-0x00000000055EA000-memory.dmp

      Filesize

      40KB

    • memory/3800-131-0x00000000059F0000-0x0000000005F94000-memory.dmp

      Filesize

      5.6MB

    • memory/3800-130-0x0000000000B10000-0x0000000000BA2000-memory.dmp

      Filesize

      584KB

    • memory/3800-132-0x0000000005540000-0x00000000055D2000-memory.dmp

      Filesize

      584KB

    • memory/3800-134-0x00000000079F0000-0x0000000007A8C000-memory.dmp

      Filesize

      624KB