Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    12-07-2024 02:47

General

  • Target

    3bb6d930276295c23c1c3f4ec185b5b2_JaffaCakes118.exe

  • Size

    641KB

  • MD5

    3bb6d930276295c23c1c3f4ec185b5b2

  • SHA1

    20f2b7641034cdecf356b6709a815c91133c6a0b

  • SHA256

    c053301127b648916dd0ec9318a9cd0f48a1acde54962e680ad94cf1167a4ef3

  • SHA512

    ba34bd9949a8ec5246d85d967199a7579217e66ff9f20a5d57cf0469675381e6d52fb97466a7c3a2432db93fba83634b674fb08d32173d530ee44736d186446c

  • SSDEEP

    12288:WipG/rTvtwNgC0Wt9KhyUarOFz8kPGu+xWG59J4PBgj/Y+npSfyZyg8HyvV:W+G/rTvtER0Wt0yU0OFve53TbhnpSfyO

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

bobbyino.duckdns.org:6672

Mutex

b35f15a0-51d6-4b6a-89be-2b86ac57733c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    bobbyino.duckdns.org

  • backup_dns_server

    bobbyino.duckdns.org

  • buffer_size

    65535

  • build_time

    2020-11-23T10:20:23.936986936Z

  • 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

    6672

  • 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

    b35f15a0-51d6-4b6a-89be-2b86ac57733c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    bobbyino.duckdns.org

  • primary_dns_server

    bobbyino.duckdns.org

  • 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.

  • 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
  • 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bb6d930276295c23c1c3f4ec185b5b2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3bb6d930276295c23c1c3f4ec185b5b2_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Users\Admin\AppData\Local\Temp\3bb6d930276295c23c1c3f4ec185b5b2_JaffaCakes118.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2300
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBAA8.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2664
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBB74.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3048

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBAA8.tmp
    Filesize

    1KB

    MD5

    7969d8277aaaa6694b8c6ce5ae764e46

    SHA1

    192f76117318e5af8522370352238c8ebfcfb206

    SHA256

    1a7bc887bc65a33f32615c04218d88997446dd3bd47fd9af192b157f8264085b

    SHA512

    fdbc403db899c024ff27ecfd48b4cf8567ff09df6269e1cb2640479a41beb3b3fcffd35620a52889913fd2d044bcd6446baa63a447661e186dd971870d479153

  • C:\Users\Admin\AppData\Local\Temp\tmpBB74.tmp
    Filesize

    1KB

    MD5

    9f0deb7cf87b4ae4efde9cc98ff481db

    SHA1

    760265641ce176e555c64bedb494f6f75fd0bd27

    SHA256

    a57110ccf892c8ca9c9b28b2608f4d37a8b5df1bfcf1411e7c62b500e82fabda

    SHA512

    6517829d9a09df437a340485bb87183c7a80135a76296308120e0ab385f5ffa7369a2ace9655ffaf1c594869cc6a20015520b6b0c681217b641b3c58127a29de

  • memory/2300-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-17-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-31-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2300-5-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-15-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2300-11-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-9-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-21-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2300-22-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2300-7-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2300-20-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2652-23-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2652-3-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2652-0-0x00000000741A1000-0x00000000741A2000-memory.dmp
    Filesize

    4KB

  • memory/2652-2-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2652-1-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB

  • memory/2652-4-0x00000000741A0000-0x000000007474B000-memory.dmp
    Filesize

    5.7MB