Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2024 21:17

General

  • Target

    cf12822d8f2e31868bb1dfab10232cc9_JaffaCakes118.exe

  • Size

    597KB

  • MD5

    cf12822d8f2e31868bb1dfab10232cc9

  • SHA1

    b0e1ee698421d26aae0f2aa77b62f3d534b1b614

  • SHA256

    7ae21c83bb2f8dcb09f047011fc4915c86bd3e9a3c6cd6478d85be02ad04a7e3

  • SHA512

    72b768f44e01b6e8e3b9467872deba7f62d82f155d7d4ebd744d415304d183a35f5ec974e270bc8ec5302cc3d73a96f3e1dad6b2c3c0e820ffb3f55a466e496e

  • SSDEEP

    12288:E5LifQXaHC14Eu+VZhEOct5GrFUqnZVdwpBM/:U4QKHC3rzh4t5GpwfM/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

xp18.ddns.net:1012

Mutex

ef6b2072-3b38-4899-b925-378df7ad2d73

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    xp18.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-04-23T05:59:24.479035036Z

  • 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

    1012

  • 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

    ef6b2072-3b38-4899-b925-378df7ad2d73

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    xp18.ddns.net

  • 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.

  • Nanocore family
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 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\cf12822d8f2e31868bb1dfab10232cc9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cf12822d8f2e31868bb1dfab10232cc9_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\cf12822d8f2e31868bb1dfab10232cc9_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
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5226.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2276
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp53AD.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5226.tmp

    Filesize

    1KB

    MD5

    fd771ddb87f862180c630bebd6075edb

    SHA1

    325d61f78373a876eca6e91df1957e5a9340c3f7

    SHA256

    009bee8d39d8ec182fa2eec25eaa5147f53156779b8e6cc1f52a533962cce761

    SHA512

    410f61486211a9c9ad8f404de9fc1f297fadacd12e34a8e8d86cd8435481dfcec69846d2d2f8f91add3d9c54e9e5e2a5662645ff2be78c6149ce56933d3d1bf7

  • C:\Users\Admin\AppData\Local\Temp\tmp53AD.tmp

    Filesize

    1KB

    MD5

    bbb0d424bb7cb3b0e6aeb68cf82b8f5f

    SHA1

    7e95dcd21a27ee53e5c23ed5a163df56a43d572a

    SHA256

    08d6bee474edf0151a0d8ff942ba9e6a1efe069585c63477abd1c7bd8046e130

    SHA512

    0dc790a415f9717f6e7633c1d5f2749a2eca5582c5bbe114119c3ddba6d4e4d0df48029622e2fe07f94d8ae97c334b88691b7721da50ada261449769ae31d466

  • memory/2136-0-0x00000000747C1000-0x00000000747C2000-memory.dmp

    Filesize

    4KB

  • memory/2136-1-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2136-2-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2136-3-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2136-4-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2136-17-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2824-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-18-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2824-16-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-26-0x00000000747C0000-0x0000000074D6B000-memory.dmp

    Filesize

    5.7MB