Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 04:37

General

  • Target

    98edee6a736fd329af602c895531f560_JaffaCakes118.exe

  • Size

    636KB

  • MD5

    98edee6a736fd329af602c895531f560

  • SHA1

    5fece25803bdcb0f283fe479c70fdcd06042421c

  • SHA256

    bf1f247b36adba6085a563ea0d78d2a96cb4c523cbcbe2842a19dd214a0e655a

  • SHA512

    f52986e5916f1f3bd1efb8d7f0f7aa79da8818adbacc8f48e1eb41c3571f5ec1e8289ff7f2c42f8e45a49eaef58bd2a68d3e27a9f6fc930f432ab7067795ecc3

  • SSDEEP

    12288:BUSME+vHKKB9YP2BFc+2zgjSrN5bkab6zp8cDYd5AynZNE7y9toRSuFcUrlqk:5cfKLv+2zgkiVCqCvZNdoEuFcUQk

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

amechi.duckdns.org:4190

Mutex

3b3fb7d2-e471-4b8f-930b-90a0b4d21b99

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    amechi.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-11-30T09:04:45.886194136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4190

  • default_group

    PRINCE SA HANDWORK

  • 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

    3b3fb7d2-e471-4b8f-930b-90a0b4d21b99

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    amechi.duckdns.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 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 4 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\98edee6a736fd329af602c895531f560_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\98edee6a736fd329af602c895531f560_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:4564
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AxXDlVIQlS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp32A4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4648
    • C:\Users\Admin\AppData\Local\Temp\98edee6a736fd329af602c895531f560_JaffaCakes118.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:4716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\98edee6a736fd329af602c895531f560_JaffaCakes118.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\tmp32A4.tmp

    Filesize

    1KB

    MD5

    5bc7cd5d7c185b93a8a8dde01fd825e9

    SHA1

    ae4eb2e04583aaaa53375f3471d0bc70e24c0848

    SHA256

    a60b68d8140635ec85d4b07582a3251b8c79a6b554eefe4cd3c3b476fd73701f

    SHA512

    70a1da39578f69fa9072d368671208730925a9aaaa49ccac422a953bac2de88d5c7ab9aeb9a8a7733d6fd38a8b38ce4a210b51da0bf0450bc9c093eeb7fc77c9

  • memory/4564-10-0x0000000007D70000-0x0000000007DFE000-memory.dmp

    Filesize

    568KB

  • memory/4564-2-0x0000000005740000-0x0000000005CE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4564-4-0x0000000005120000-0x000000000512A000-memory.dmp

    Filesize

    40KB

  • memory/4564-5-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4564-6-0x0000000007CD0000-0x0000000007D6C000-memory.dmp

    Filesize

    624KB

  • memory/4564-7-0x0000000005730000-0x0000000005742000-memory.dmp

    Filesize

    72KB

  • memory/4564-8-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/4564-9-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4564-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/4564-3-0x0000000005070000-0x0000000005102000-memory.dmp

    Filesize

    584KB

  • memory/4564-18-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4564-1-0x0000000000620000-0x00000000006C6000-memory.dmp

    Filesize

    664KB

  • memory/4716-17-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4716-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4716-19-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4716-22-0x00000000059A0000-0x00000000059AA000-memory.dmp

    Filesize

    40KB

  • memory/4716-23-0x0000000005E00000-0x0000000005E1E000-memory.dmp

    Filesize

    120KB

  • memory/4716-24-0x0000000006720000-0x000000000672A000-memory.dmp

    Filesize

    40KB

  • memory/4716-25-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB

  • memory/4716-26-0x00000000746D0000-0x0000000074E80000-memory.dmp

    Filesize

    7.7MB