Analysis

  • max time kernel
    146s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 06:11

General

  • Target

    a42455fcc0abbe7f1306cd03425dd7ec_JaffaCakes118.exe

  • Size

    537KB

  • MD5

    a42455fcc0abbe7f1306cd03425dd7ec

  • SHA1

    fb7a96fe8712687b0b32ccf9f6f1f13247bd994f

  • SHA256

    14c79a6e3b911ab3f90a984b7995f7e133d7dffce3b99b05f2d2b9c35f0d7017

  • SHA512

    ba994525bce9111cda32b062d31a08193615c26dc8f6103929f64d054d765de784ee71c01a2ebd954e2022568dcff65808093556974ee67888ab273a65a00c5f

  • SSDEEP

    12288:et4ykyXMfgjmKKl1Cu+qe8y5xO+Cf2Ml7QIJ3n9x5FPKMjh/Cd:uXM4jml1R+vcf2MlM03759O

Malware Config

Extracted

Family

nanocore

Version

1.2.2.2

C2

w33d.ddns.net:64997

185.32.221.26:64997

Mutex

d5661869-c47f-4f07-b1ec-3f16b0540cd3

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    185.32.221.26

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-05-02T21:23:23.803253336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    64997

  • default_group

    21.07

  • 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

    d5661869-c47f-4f07-b1ec-3f16b0540cd3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    w33d.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

    1.2.2.2

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 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).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a42455fcc0abbe7f1306cd03425dd7ec_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a42455fcc0abbe7f1306cd03425dd7ec_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\a42455fcc0abbe7f1306cd03425dd7ec_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a42455fcc0abbe7f1306cd03425dd7ec_JaffaCakes118.exe"
      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
      PID:2732
    • C:\Users\Admin\AppData\Local\Temp\google.earth.pro.7.x-patch.exe
      "C:\Users\Admin\AppData\Local\Temp\google.earth.pro.7.x-patch.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2884

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\dup2patcher.dll
    Filesize

    56KB

    MD5

    9d222f57e6aba1445305020da24e387d

    SHA1

    9a2f8653cb75eef32aa5fbd7c2afb8223a886f99

    SHA256

    0d061c34c6fd8b6f813929ab30ec7a768bfc243c53260b4be0731137cf8bdb46

    SHA512

    76f1b5efa83f389e66315d99419f582eed0cd477a72f2e06feac06475340452c7402ffe666cf7bd5fde5d89fb8450ee272f5c2e247b72308ecedd60e093d926b

  • \Users\Admin\AppData\Local\Temp\google.earth.pro.7.x-patch.exe
    Filesize

    101KB

    MD5

    86b2c52efa87807e7d02323bfc3ba5cd

    SHA1

    68f9191159ffcc310510532d4e2d108ae729a337

    SHA256

    34ada1005c88d5a3c5d936a48a8d4635bfb3a563e1fd8bf5177d755dd8ab19b2

    SHA512

    78e0189bd0e574b2c7a8a35b52a183d98996b1ff7812e6ac7cbc80a71b9b9b2d365fe7961fbf5438a25265323a45179265a3b9b5895f434e4ef8f0847180ac51

  • memory/2388-8-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2388-11-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2388-0-0x0000000074661000-0x0000000074662000-memory.dmp
    Filesize

    4KB

  • memory/2388-37-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2732-14-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-17-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-15-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-25-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-24-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-28-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2732-19-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-38-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2732-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2732-13-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2732-32-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2732-42-0x0000000074660000-0x0000000074C0B000-memory.dmp
    Filesize

    5.7MB

  • memory/2884-39-0x0000000071C60000-0x0000000071C86000-memory.dmp
    Filesize

    152KB