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Analysis

  • max time kernel
    147s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/09/2024, 15:43

General

  • Target

    f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe

  • Size

    918KB

  • MD5

    f3f9184bcd70e29b2e5f8158bf563631

  • SHA1

    5ca76c85e3f1793d3fb239dbb8de63e2cff6f48b

  • SHA256

    f2d649742b53fe02fca59829fed91f928fdbe5dab012bbf62ebb91148806c5d2

  • SHA512

    d0c192a7ecbbdb9e574ea3d40aedfbfcd415267baf22e8813bf9c89ee59b4af9ac6574fe0220789817fdc3da78d40216106168c90f5b436660307c270b2b3a35

  • SSDEEP

    24576:SB9/QFCnBAu+GnMr3jYyEJusetjYRx0BtO/tiuIvkor91bJCCvP1lCRODh7kwSt8:DCnBAuWvkcbXrPa4

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

backupdns.hopto.org:2266

127.0.0.1:2266

Mutex

85ac4869-a607-40fe-a1c1-4bce2d8e1d63

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-07-13T07:40:19.639778236Z

  • 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

    2266

  • default_group

    Default

  • 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

    85ac4869-a607-40fe-a1c1-4bce2d8e1d63

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    backupdns.hopto.org

  • 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.

  • Drops startup file 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f3f9184bcd70e29b2e5f8158bf563631_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /query
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3116
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /sc MINUTE /tn svhost /MO 1 /tr "C:\Users\Admin\AppData\Roaming\svhost\svhost.exe\
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1124
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp82CC.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp82CC.tmp

    Filesize

    1KB

    MD5

    c6f0625bf4c1cdfb699980c9243d3b22

    SHA1

    43de1fe580576935516327f17b5da0c656c72851

    SHA256

    8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

    SHA512

    9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

  • memory/2536-1-0x00000000009B0000-0x0000000000A84000-memory.dmp

    Filesize

    848KB

  • memory/2536-2-0x0000000002E30000-0x0000000002E74000-memory.dmp

    Filesize

    272KB

  • memory/2536-3-0x0000000001440000-0x000000000144C000-memory.dmp

    Filesize

    48KB

  • memory/2536-6-0x00000000053D0000-0x0000000005408000-memory.dmp

    Filesize

    224KB

  • memory/2536-7-0x0000000005540000-0x00000000055DC000-memory.dmp

    Filesize

    624KB

  • memory/2536-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

    Filesize

    4KB

  • memory/3428-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3428-11-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/3428-12-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/3428-10-0x00000000748C2000-0x00000000748C3000-memory.dmp

    Filesize

    4KB

  • memory/3428-17-0x00000000748C2000-0x00000000748C3000-memory.dmp

    Filesize

    4KB

  • memory/3428-18-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/3428-19-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB