Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-08-2024 18:03

General

  • Target

    8716ee641f0572d128d1261c9393f4af_JaffaCakes118.exe

  • Size

    768KB

  • MD5

    8716ee641f0572d128d1261c9393f4af

  • SHA1

    c448efffce2c2abacd30cfa3fd3e6458c35866c8

  • SHA256

    1eb67ff1a8f16725e58ab95f31a3302f55196e10ba9bcde26960e87aea921c6b

  • SHA512

    e80ec05d1a0052ed0144a4c132580ac6c8bc7074a91d0e14b9d00107fe05b0c2689d37fb78ebb27ada2978a38dc2d21bdf8d23b66c30821a764be894a2a3a05e

  • SSDEEP

    12288:WrZbyG+NkqSVRUM51k0shDxOVZnXBsYpz8nt+VKfuWx1Zqvsuly3oX:M+NELUMrk0sh9sVRsYgtaW1Ay3O

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newme12.3utilities.com:83

newme122.3utilities.com:83

Mutex

0b9895da-57b4-4ef2-a7fc-2eac158f889d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newme122.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-16T08:33:46.447540436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    83

  • default_group

    MAintain

  • 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

    0b9895da-57b4-4ef2-a7fc-2eac158f889d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newme12.3utilities.com

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8716ee641f0572d128d1261c9393f4af_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8716ee641f0572d128d1261c9393f4af_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iuynvJpnxq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp25B3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:644
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2540-13-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-20-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-19-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-18-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-15-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/2540-11-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/4720-3-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

    Filesize

    4KB

  • memory/4720-5-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/4720-16-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/4720-4-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/4720-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

    Filesize

    4KB

  • memory/4720-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/4720-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB