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Analysis

  • max time kernel
    139s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 10:11

General

  • Target

    0efa04a898afc4535564e1ea192b78f6_JaffaCakes118.exe

  • Size

    709KB

  • MD5

    0efa04a898afc4535564e1ea192b78f6

  • SHA1

    3ddff2fcc9a9eb86d088f3202afd7dcef82912f4

  • SHA256

    722176bd0518a4865b4078f73ef7cc3846995599d0971889025e94dfcaa94964

  • SHA512

    e1ceb9148d9998cc9a456b744d117459aee5d3712bd443bbb41f622274c31dd983afe3369e2ed8ed41f60ad5ab663b46200c309d89e9f1f6e66f4c5e5c6eb646

  • SSDEEP

    12288:ZSkwRF1a+dO6+VTKkFwQgWXLBPEhb5k0bbNkNNpVz3ONEnw1p9:ZSkQ0WOHVNdXLBPI

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

man90.ddns.net:3280

194.5.99.19:3280

Mutex

4a6ee88e-a050-4d1d-9232-edbd2a38972e

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.99.19

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-08-05T19:26:15.373508036Z

  • 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

    3280

  • 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

    4a6ee88e-a050-4d1d-9232-edbd2a38972e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    man90.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.

  • 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 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0efa04a898afc4535564e1ea192b78f6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0efa04a898afc4535564e1ea192b78f6_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\0efa04a898afc4535564e1ea192b78f6_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\0efa04a898afc4535564e1ea192b78f6_JaffaCakes118.exe"
      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:1768
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF5D9.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2984
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF628.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF5D9.tmp

    Filesize

    1KB

    MD5

    71e126da0263c07d22bde529d414d4f6

    SHA1

    f6b12538635fb85cdd00da64872cded584461ee6

    SHA256

    1837b00f75028c4c68480491593c1695d20544a59bd87dbdf1b3121ea2d734fb

    SHA512

    682d15779fad226cef5e299f0430559510b0de0e2273cec3003a3896cf17f75b4fc61e360bd8a421b5e8c1fab3834fda5dd00c2976e69455e2f4c252f47ce328

  • C:\Users\Admin\AppData\Local\Temp\tmpF628.tmp

    Filesize

    1KB

    MD5

    f5cfecb8113f1389673dca400a1825b4

    SHA1

    c274ce94b3ed69b5041782f8985ccdee953adab2

    SHA256

    fadc2a28023dcd8aca2aae413440fc5835a2a643aca07fcd9db8d9fe0b2d3ab7

    SHA512

    9288297097903cea4b68ee61c8f62cffd6ddd61396e9c9b68e527b88d1d4801dd8fd7083432f560b42a515e5f622f66baf2851aee6623534b8a07cfd2ee2686f

  • memory/1400-9-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1400-0-0x0000000074932000-0x0000000074933000-memory.dmp

    Filesize

    4KB

  • memory/1400-4-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1400-1-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1400-2-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1400-3-0x0000000074932000-0x0000000074933000-memory.dmp

    Filesize

    4KB

  • memory/1768-10-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-8-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-7-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1768-18-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-19-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-20-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-21-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/1768-22-0x0000000074930000-0x0000000074EE1000-memory.dmp

    Filesize

    5.7MB