Analysis

  • max time kernel
    113s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-07-2022 13:33

General

  • Target

    3e0f6cacce5c9bb96d68914bbe5af3a4850988c562d236392fb99814456db40b.exe

  • Size

    504KB

  • MD5

    ca2b658c2635de5b50eaf2a9db941da5

  • SHA1

    6b69f3a7437cc4aff6fbed6c7290c5d67811964d

  • SHA256

    3e0f6cacce5c9bb96d68914bbe5af3a4850988c562d236392fb99814456db40b

  • SHA512

    79ae2c412892baa2dea2168d662ec373bbd6ea07efd46289c4ccf920715459aa5452209baf4ad9cfab44f57014d66f07295680b81cfc9a1971d26514f4092db3

Malware Config

Extracted

Family

netwire

C2

ddns.catamosky.biz:4668

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    JULY

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • offline_keylogger

    true

  • password

    Trinidado1@

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 5 IoCs
  • Netwire

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e0f6cacce5c9bb96d68914bbe5af3a4850988c562d236392fb99814456db40b.exe
    "C:\Users\Admin\AppData\Local\Temp\3e0f6cacce5c9bb96d68914bbe5af3a4850988c562d236392fb99814456db40b.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\skype\vbc.vbs"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1140
      • C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe
        "C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe
          "C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe"
          4⤵
          • Executes dropped EXE
          PID:2016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • C:\Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • C:\Users\Admin\AppData\Local\Temp\skype\vbc.vbs

    Filesize

    1024B

    MD5

    d58ccde93895be5c0959350635722206

    SHA1

    a503b4724a27885da1d873d765eafa6881e1a000

    SHA256

    8dbb89ec1dccff9010457f47b53a62d7d2164948cf2b45c60ac00b39666ab970

    SHA512

    bb06d33b038e9b8cbf2cdc231c9e4f82281e33b3da45d3f15d39d4d48ce38c20fe41386d3239bd1ab34301047734adb9a3c26f1101dd73c9ba855264345dc098

  • \Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • \Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • \Users\Admin\AppData\Local\Temp\skype\vbc.exe

    Filesize

    504KB

    MD5

    8c7109c8ad93bf6b87f46a5457059dd4

    SHA1

    467e4b4bfcf01500296e13a325ac2820e9e43123

    SHA256

    c8472b111712a4d8d9533347d463cd07d293d924928d80c3ebb65d6d3984fe3b

    SHA512

    39616a63bb55a9a313fc80e50866796264c575f37a97a41c7d7ed0e420025a0caa8c5b1b81dbce86bb5924894aabb0aae92eb5f99c119178429a084b37c7dd21

  • memory/1140-58-0x0000000000000000-mapping.dmp

  • memory/1480-56-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1480-57-0x0000000075871000-0x0000000075873000-memory.dmp

    Filesize

    8KB

  • memory/2016-70-0x0000000000000000-mapping.dmp

  • memory/2016-72-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/2016-75-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/2016-76-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/2016-77-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/2040-64-0x0000000000000000-mapping.dmp

  • memory/2040-73-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB