Analysis

  • max time kernel
    108s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-10-2022 12:34

General

  • Target

    a545418278552272088bed5bf35de454921197600a7ae93e21d1ceb5773d8cdb.exe

  • Size

    972KB

  • MD5

    ba8b159444a741323d99faae8a2ca6c4

  • SHA1

    69c71968e3c9211dd2fd57fd3d20cf3abcc27b6f

  • SHA256

    a545418278552272088bed5bf35de454921197600a7ae93e21d1ceb5773d8cdb

  • SHA512

    0c300b33aed1654d7467fdc7eda60dccf18e9eff5f8220947a874a06a8d8d1d1c0dd1b9a9ca91e2814546cc3a49fc651ea40fec84e8da8ee1ffa71d4cba524b0

  • SSDEEP

    12288:74sW6mALpJFD/+/DtfpcBs0NOJLM2WIhbKzv1YXqjJ5nsLQFIBXbwBzvW/jcuNue:74r6jLD/MhRiNOJdWV1YajrsLaw

Malware Config

Extracted

Family

netwire

C2

194.5.98.194:3384

194.5.98.194:3387

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

    goodnews1234

  • 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.

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a545418278552272088bed5bf35de454921197600a7ae93e21d1ceb5773d8cdb.exe
    "C:\Users\Admin\AppData\Local\Temp\a545418278552272088bed5bf35de454921197600a7ae93e21d1ceb5773d8cdb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zJdSgrsru" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF717.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:984
    • C:\Users\Admin\AppData\Local\Temp\a545418278552272088bed5bf35de454921197600a7ae93e21d1ceb5773d8cdb.exe
      "{path}"
      2⤵
        PID:4596

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpF717.tmp
      Filesize

      1KB

      MD5

      2c2fc62f28a24c2a53e410f3150f5965

      SHA1

      940e369e9387a7f0df0dc34c625f3958eb4d0392

      SHA256

      20c507de0bdbf7a49e2943c83759c4f7cd0c533f0cfcdab0a802fd61afa040d5

      SHA512

      b072a1de59e3b290f0cbe3007735c2bdf7ef61443daf2c6a5dc5e70e03cc31c617dbbbc2ac9339c1705ee6ce6860c1fd2ae5d8ce8643f2130adcfef6af42c64b

    • memory/984-137-0x0000000000000000-mapping.dmp
    • memory/2008-132-0x0000000000A80000-0x0000000000B78000-memory.dmp
      Filesize

      992KB

    • memory/2008-133-0x0000000005AB0000-0x0000000006054000-memory.dmp
      Filesize

      5.6MB

    • memory/2008-134-0x00000000055A0000-0x0000000005632000-memory.dmp
      Filesize

      584KB

    • memory/2008-135-0x0000000005640000-0x00000000056DC000-memory.dmp
      Filesize

      624KB

    • memory/2008-136-0x0000000005520000-0x000000000552A000-memory.dmp
      Filesize

      40KB

    • memory/4596-139-0x0000000000000000-mapping.dmp
    • memory/4596-140-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/4596-142-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/4596-143-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/4596-144-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB