Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 22:26

General

  • Target

    JaffaCakes118_6102daa4935e016dea8dc3eec27d2ac1.exe

  • Size

    479KB

  • MD5

    6102daa4935e016dea8dc3eec27d2ac1

  • SHA1

    c5320bd4d54b856aa90bc7a92ca9ce5dc22e70ca

  • SHA256

    5d192cc1e5d9569479192b9ca7147953428158484ab4f5c0480ad220688fbfce

  • SHA512

    92d0683cc73ea1479426a5869cc66be21b28482069af8c8fceb69ea183d978d5f600323011c7944a1b618b11e3a56d4371aaf8dcc3238098c4388eccd5115b51

  • SSDEEP

    12288:P2yRPHfLlUN7Fl1dYySBrNoZZDetBHGTRNj:97wAySdNorDgBHGTRNj

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.157.160.229:60006

neoncorex.duckdns.org:60006

Mutex

1d5c6a3e-60c1-4684-aee7-fbdc0338bfa0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    neoncorex.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-29T18:43:26.772131836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    60006

  • default_group

    NANOSHIELD

  • 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

    1d5c6a3e-60c1-4684-aee7-fbdc0338bfa0

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.157.160.229

  • 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.

  • Nanocore family
  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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 6 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6102daa4935e016dea8dc3eec27d2ac1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6102daa4935e016dea8dc3eec27d2ac1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2624
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6102daa4935e016dea8dc3eec27d2ac1.exe" "C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2680
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {F5F28A26-20FC-414A-AE4A-B2EFA098B783} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe
      C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\dllinstallprint\dllinstallprint.exe

    Filesize

    479KB

    MD5

    6102daa4935e016dea8dc3eec27d2ac1

    SHA1

    c5320bd4d54b856aa90bc7a92ca9ce5dc22e70ca

    SHA256

    5d192cc1e5d9569479192b9ca7147953428158484ab4f5c0480ad220688fbfce

    SHA512

    92d0683cc73ea1479426a5869cc66be21b28482069af8c8fceb69ea183d978d5f600323011c7944a1b618b11e3a56d4371aaf8dcc3238098c4388eccd5115b51

  • memory/2528-0-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

    Filesize

    4KB

  • memory/2528-1-0x0000000000F70000-0x0000000000FEE000-memory.dmp

    Filesize

    504KB

  • memory/2528-2-0x0000000074CE0000-0x00000000753CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-3-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

    Filesize

    4KB

  • memory/2528-4-0x0000000074CE0000-0x00000000753CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-18-0x0000000074CE0000-0x00000000753CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-25-0x0000000000E70000-0x0000000000EEE000-memory.dmp

    Filesize

    504KB

  • memory/2920-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2920-20-0x0000000000690000-0x000000000069A000-memory.dmp

    Filesize

    40KB

  • memory/2920-21-0x00000000006A0000-0x00000000006BE000-memory.dmp

    Filesize

    120KB

  • memory/2920-22-0x00000000006C0000-0x00000000006CA000-memory.dmp

    Filesize

    40KB

  • memory/2920-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2920-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB