Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 18:35

General

  • Target

    085835acd102be8ae20f06e3bcd1c286_JaffaCakes118.exe

  • Size

    265KB

  • MD5

    085835acd102be8ae20f06e3bcd1c286

  • SHA1

    6b094f2758e3eb5de80694332c7c230cddd4d56c

  • SHA256

    dfaef1fc73070ec9c9c82054c45852aed5bd3cbf3d05b1e5dc3e0da7d9c8bf60

  • SHA512

    949609cab86dc8edb2188c95a10dc82db87eab8a61032e608b057adfe710d2dfc4d97f229930ad2650c520d44a5f3de68acdd3850bd10ca8dc37ef73c11cd5aa

  • SSDEEP

    6144:xCOpqpmLKQFA+C+DLztBFUY+kzdCJe6Dcr5u:jpqprQo+3zNUYirAr

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

84.38.133.178:6498

Mutex

34997c50-6cd9-4e52-8d4a-91b63f55380d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    84.38.133.178

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-23T22:29:43.876535636Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6498

  • default_group

    New Logz

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    34997c50-6cd9-4e52-8d4a-91b63f55380d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    84.38.133.178

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • 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).

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\085835acd102be8ae20f06e3bcd1c286_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\085835acd102be8ae20f06e3bcd1c286_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BKruiAd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3776.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2896
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DSL Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3AE1.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1404
  • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    1⤵
      PID:2800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3776.tmp

      Filesize

      1KB

      MD5

      28a030c7e73df0bc6ae6ab4bd7b588cc

      SHA1

      708b9cc656cb69a5d50218157e478ba7427671f5

      SHA256

      7a106127d8ee23947af7a1b4daa25fc2f417f618f265779c6497da9468a41a11

      SHA512

      d0a26796e720a07c8ea674be61fa32fb6cdfbad0cd4519336ffc18f1dc7c6d63316f5077c802b61401e884a41ba65d4ce2fe7b39e13638b70fa0b4551f71cf0a

    • C:\Users\Admin\AppData\Local\Temp\tmp3AE1.tmp

      Filesize

      1KB

      MD5

      40b11ef601fb28f9b2e69d36857bf2ec

      SHA1

      b6454020ad2ceed193f4792b77001d0bd741b370

      SHA256

      c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

      SHA512

      e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

    • memory/2800-12-0x00007FF9382D0000-0x00007FF938C71000-memory.dmp

      Filesize

      9.6MB

    • memory/2800-4-0x00007FF9382D0000-0x00007FF938C71000-memory.dmp

      Filesize

      9.6MB

    • memory/2800-13-0x00000000010F0000-0x0000000001100000-memory.dmp

      Filesize

      64KB

    • memory/2800-5-0x00000000010F0000-0x0000000001100000-memory.dmp

      Filesize

      64KB

    • memory/2800-7-0x00007FF9382D0000-0x00007FF938C71000-memory.dmp

      Filesize

      9.6MB

    • memory/2800-6-0x000000001A830000-0x000000001AC04000-memory.dmp

      Filesize

      3.8MB

    • memory/2800-8-0x000000001AE50000-0x000000001AF86000-memory.dmp

      Filesize

      1.2MB

    • memory/2800-9-0x00000000010F0000-0x0000000001100000-memory.dmp

      Filesize

      64KB

    • memory/2800-3-0x0000000000DB0000-0x0000000000DD0000-memory.dmp

      Filesize

      128KB

    • memory/2800-14-0x00000000010F0000-0x0000000001100000-memory.dmp

      Filesize

      64KB

    • memory/3924-30-0x0000000001150000-0x0000000001160000-memory.dmp

      Filesize

      64KB

    • memory/3924-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3924-22-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB

    • memory/3924-23-0x0000000001150000-0x0000000001160000-memory.dmp

      Filesize

      64KB

    • memory/3924-29-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB

    • memory/4104-10-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB

    • memory/4104-11-0x0000000000D00000-0x0000000000D10000-memory.dmp

      Filesize

      64KB

    • memory/4104-15-0x0000000000D00000-0x0000000000D10000-memory.dmp

      Filesize

      64KB

    • memory/4104-16-0x0000000000D00000-0x0000000000D10000-memory.dmp

      Filesize

      64KB

    • memory/4104-2-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB

    • memory/4104-24-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB

    • memory/4104-1-0x0000000000D00000-0x0000000000D10000-memory.dmp

      Filesize

      64KB

    • memory/4104-0-0x0000000075530000-0x0000000075AE1000-memory.dmp

      Filesize

      5.7MB