Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-10-2024 12:49

General

  • Target

    2ff0feb1e73070a50fb024d587c42471_JaffaCakes118.exe

  • Size

    249KB

  • MD5

    2ff0feb1e73070a50fb024d587c42471

  • SHA1

    d62ff8a3a268662b7b5733512d88edb24665e8f2

  • SHA256

    5020e9cf2c144b517fefdf213aa187695a1c2045ca70b74557a3aa522368d9de

  • SHA512

    b4d8c0b6c265f5a7169999bea0a3da41efe863866ab6ebe7069b75d0183a5c7727663689a99a9bd2571960a0d930ba973149449a85ce342bd99b965c37e6f7c1

  • SSDEEP

    3072:Q82kU3u8fk+bMROuT5Ftdr3jsQxeiYfVgTnJ2+MWV4+0lAXwsiScl37nt4oeAimd:IWskKMouNFzYE0aVVclLtReZm5f/1Ai

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

logindomain.sytes.net:54984

5.20.120.177:54984

Mutex

f78bc467-0735-4290-8f1a-d046622106d3

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    5.20.120.177

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-10-16T15:18:03.428978936Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • default_group

    Sales

  • 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

    f78bc467-0735-4290-8f1a-d046622106d3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    logindomain.sytes.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • 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.

  • UAC bypass 3 TTPs 1 IoCs
  • Disables cmd.exe use via registry modification 1 IoCs
  • 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 3 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 5 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 3 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 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ff0feb1e73070a50fb024d587c42471_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2ff0feb1e73070a50fb024d587c42471_JaffaCakes118.exe"
    1⤵
    • UAC bypass
    • Disables cmd.exe use via registry modification
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2200
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Update\Intel Core" /XML "C:\Users\Admin\AppData\Local\Temp\ayyyyy.xml"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:928
    • C:\Users\Admin\AppData\Local\Temp\2ff0feb1e73070a50fb024d587c42471_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\2ff0feb1e73070a50fb024d587c42471_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:780
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4852
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB9EB.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\2ff0feb1e73070a50fb024d587c42471_JaffaCakes118.exe.log

    Filesize

    315B

    MD5

    1bbfc18e1ef8bd33be3929ed6f572f5c

    SHA1

    845e02f98295cecff8015db2241b92e917e0105c

    SHA256

    e768e6c13937d1fd1f366138c1e1c5b4a58d14fff2a2a02997955effee656ff6

    SHA512

    76bd4dfba45438d0238eaa9b863044c58a9956c2ae1ff6af926a26f121ce16ef9b35dc1e99f1ab8d93118f929dcf61c827db2c3b42870984df5df27c79215a3c

  • C:\Users\Admin\AppData\Local\Temp\ayyyyy.xml

    Filesize

    1KB

    MD5

    af20530db6119200a079c9ab7d79c042

    SHA1

    df846273e51ce740982ee5e32e8f8cc07466366f

    SHA256

    c107fb457023a6a4e4d0e7ddbdbdfe866dba1a2d2d4d4bc0ef22ea65febf498e

    SHA512

    c1f1cf8d284984dbb029f770bf5cad4591feb2c3973da521cd20e32f7708a36b30e2469c43a13e31b12eba4ec7933ba69e9ee064ce194184db336f028b531ea9

  • C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp

    Filesize

    1KB

    MD5

    2d625b43ffc70168c3674171d38c797d

    SHA1

    0b2480ed4d6c8ea229897b52905df673144ec97f

    SHA256

    1c7d5f1bd3132079aed5a6351f1b29898503060fc826291af9e84f8f9edc12a8

    SHA512

    eba64ee5d122a8d9d8552780db4b209d709ed138919cf59083e06e9ddeb9af1e60196b0d5ae0d38c3097ba14541836967aff2bb8a9ef354df4852f3453a306eb

  • C:\Users\Admin\AppData\Local\Temp\tmpB9EB.tmp

    Filesize

    1KB

    MD5

    7a81ae69c04c8d95261eb5f490b7f869

    SHA1

    9f4f484d306fea15b2e7f9f16db660833bb1f8ce

    SHA256

    ce3933e772f663a834335cc2071e5e7b2d49a065b51d84a259054b8ef663e785

    SHA512

    8260ab83106752a488e164bbed63ef334d34399bc9a5c09a0cfceba6aef48eafe5c64e4dfbd353ac3edfff2523b16c2b0287d34833a293c4436e068fae656de8

  • memory/780-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/780-24-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/780-26-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/780-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/780-15-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/780-25-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/780-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/780-14-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/780-16-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-1-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-13-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

    Filesize

    4KB

  • memory/2200-3-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-2-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB