Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2024 09:03

General

  • Target

    eac33a8ca4b4f6d5f62ad4213cdc8079_JaffaCakes118.exe

  • Size

    2.2MB

  • MD5

    eac33a8ca4b4f6d5f62ad4213cdc8079

  • SHA1

    05a036b00742b23305192f1c3f2044c27c971abc

  • SHA256

    4b47ecff546748d8c35339a6608780733736e26ac76deb68971c83841b28710c

  • SHA512

    0aac29c17ea04f320de30f938f07c563c66cc6d0cde516707215b60ae389c2467fb6d626980115ff5de8044d497790ca8cb2b13cd072036bb97c8f217ef40f76

  • SSDEEP

    49152:Q2GV7D5sm5sy+Ol498fjbK0Amc4JHiMIWH5ddm6d2R16qMNVNLL6:Q2M7D5sm55+OS98fiz4HhH5dI6AcrNLG

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.48:4488

Mutex

0ccdecad-0899-45d4-aa28-34c7e592b23b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-22T00:54:08.580070336Z

  • 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

    4488

  • default_group

    PRODUCTS

  • 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

    0ccdecad-0899-45d4-aa28-34c7e592b23b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.97.48

  • 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
  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 IoCs
  • 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
  • UPX packed file 15 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eac33a8ca4b4f6d5f62ad4213cdc8079_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eac33a8ca4b4f6d5f62ad4213cdc8079_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c test.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Users\Admin\AppData\Local\Temp\test.exe
        test.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3920
        • C:\Windows\SysWOW64\notepad.exe
          "C:\Windows\system32\notepad.exe"
          4⤵
          • Drops startup file
          • System Location Discovery: System Language Discovery
          PID:4840
        • C:\Users\Admin\AppData\Local\Temp\test.exe
          test.exe
          4⤵
          • Executes dropped EXE
          • 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:2212
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "SCSI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE82D.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:4052
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "SCSI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE87C.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:848
        • C:\Users\Admin\AppData\Local\Temp\test.exe
          "C:\Users\Admin\AppData\Local\Temp\test.exe" 2 2212 240641468
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:5092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\test.exe

    Filesize

    556KB

    MD5

    4f8c873b5d7a91daf870117f1fa7899c

    SHA1

    fd3157965bd41c96134aa384d3d2a473cd34a928

    SHA256

    04ca7678a00fe66ce4eeffdbcf8a48974468a874287f013af736541851403eef

    SHA512

    5bde62b364000257904d9bd2200557df573a78fdd6ff8b26b5ea9a63b6aa43d43a38fe6469fdef849706ebdfdcb0f45518f44ced64cce9c4c87539e85e48d25b

  • C:\Users\Admin\AppData\Local\Temp\tmpE82D.tmp

    Filesize

    1KB

    MD5

    daa959fa3888b5436fb93b6796bc803b

    SHA1

    43b8b749c623daede8374165806b8354655fa06c

    SHA256

    da87a4088b0f1dce79ca8128c8275cb6eaf527e571c68a6fb3a0b56576d38344

    SHA512

    aba76a0d311ad0466c64aac0d8f6ed483d2006dc0f14ac78af6af33b9db920a3735fa9478bb6fc5535f4b5eb9621479ec6f8172e05089c27872016ae08f896f0

  • C:\Users\Admin\AppData\Local\Temp\tmpE87C.tmp

    Filesize

    1KB

    MD5

    2862e61d09852ea2886c036af0465051

    SHA1

    45e30b14543868213f7f1cba0a1e0cc840fb2cd2

    SHA256

    d4ba6219d0aff5a36d129a8475cf35b00043d205f751f63ddd56a5c7d4a03ff3

    SHA512

    33dfd9d12adaa19dd3d4dd7013930e233dd3ff1d114e1e86e50d20ffa848a27582eebdffc09ab974b8de86316c01da6f6254f349992ad507d0f8b13cf0e36579

  • memory/1624-10-0x0000000000400000-0x00000000008B3000-memory.dmp

    Filesize

    4.7MB

  • memory/1624-0-0x0000000000400000-0x00000000008B3000-memory.dmp

    Filesize

    4.7MB

  • memory/1624-41-0x0000000000400000-0x00000000008B3000-memory.dmp

    Filesize

    4.7MB

  • memory/2212-19-0x0000000000780000-0x00000000007B8000-memory.dmp

    Filesize

    224KB

  • memory/2212-20-0x0000000000780000-0x00000000007B8000-memory.dmp

    Filesize

    224KB

  • memory/2212-11-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2212-16-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2212-53-0x00000000023B0000-0x00000000023C0000-memory.dmp

    Filesize

    64KB

  • memory/2212-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2212-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2212-39-0x00000000023B0000-0x00000000023C0000-memory.dmp

    Filesize

    64KB

  • memory/2212-14-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2212-18-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3920-9-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/3920-8-0x0000000000476000-0x000000000047C000-memory.dmp

    Filesize

    24KB

  • memory/3920-7-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/3920-6-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

    Filesize

    4KB

  • memory/3920-5-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/4840-22-0x0000000001200000-0x0000000001201000-memory.dmp

    Filesize

    4KB

  • memory/5092-26-0x0000000002170000-0x0000000002171000-memory.dmp

    Filesize

    4KB

  • memory/5092-27-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/5092-50-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/5092-24-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB