Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 16:07

General

  • Target

    0a242406df260af40a8b4fd6258cfb5e_JaffaCakes118.exe

  • Size

    513KB

  • MD5

    0a242406df260af40a8b4fd6258cfb5e

  • SHA1

    2eac5ee482bc4b74a40f3d2d4537412d2708f2e5

  • SHA256

    68fc463038581b0243f1c85a6397232c5db10dd9482caaf08bdc9cc275134a6a

  • SHA512

    86b958e94a2d2ca5bafad1250920e1a1ab700757dabb0e53a5a8d6962ddcb55f5af07f42801c30604526418d18d636755d00d4d583ec988eca219da8b933f3d1

  • SSDEEP

    12288:p4fijaKuilYLV6BtpmkIMEcc7hyXDC8TW0C4yIfMZ/W:pbGKrlqApfIMEccdSm0xMt

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

128.226.252.143:54984

127.0.0.1:54984

Mutex

71004c52-6256-4356-bd30-5affe1ec6914

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-07-31T01:18:37.502649636Z

  • 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

    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

    71004c52-6256-4356-bd30-5affe1ec6914

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    128.226.252.143

  • 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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 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).

  • Creates scheduled task(s) 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 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a242406df260af40a8b4fd6258cfb5e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0a242406df260af40a8b4fd6258cfb5e_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\HWID CHANGER.EXE
      "C:\Users\Admin\AppData\Local\Temp\HWID CHANGER.EXE"
      2⤵
      • Executes dropped EXE
      PID:2920
    • C:\Users\Admin\AppData\Local\Temp\SERVICES.EXE
      "C:\Users\Admin\AppData\Local\Temp\SERVICES.EXE"
      2⤵
      • Executes dropped EXE
      • 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
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1507.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2692
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1575.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1507.tmp

    Filesize

    1KB

    MD5

    ceee50b15e8af3709e3b6797b4fe0dff

    SHA1

    94686fe6430122551a42b8c9871845c0990161f3

    SHA256

    9d5d630ffb1574bb8c5345c56805fcbd7879d2b9b7b7b799825cc6f33b232ce0

    SHA512

    372c46f1e7a50282fcc0aec8747fe82b29ec4cad9fa0e8f7a40d831b0e5aeca1925366da0f5edc22eeed5ef412a0f7a3785669a62874f7c4d40b3b089926604d

  • C:\Users\Admin\AppData\Local\Temp\tmp1575.tmp

    Filesize

    1KB

    MD5

    4b7ef560289c0f62d0baf6f14f48a57a

    SHA1

    8331acb90dde588aa3196919f6e847f398fd06d1

    SHA256

    062844155306130d6fafc4fe10ac9e5ddd2ed462532b729c50cdc979c0d83207

    SHA512

    ecaa27c4b703d95f9f9b37d8c339982970482e7dab968c2010e0aa644bbfa31973111aafb827565af30c423d1d14e4ff997ec149614e713ff7ef3456894d02d8

  • \Users\Admin\AppData\Local\Temp\HWID CHANGER.EXE

    Filesize

    138KB

    MD5

    88b430e9224557e9eeab96a9096a0e3b

    SHA1

    cb7a4f3efbfe68009c6b1677ed50991e134161e8

    SHA256

    c2b6d3a912a5dc8ddc8c4a2d67379d0395d60d4daf620ab7874741904a90793c

    SHA512

    e9631bbef6b40a07080b985d5bffaeeaab0f5cb61471ed710e174474afd724ee4ae8c207c8818e1c9bc137f1b06c4013fe2b576be439b1f464ddcb6153bbf72d

  • \Users\Admin\AppData\Local\Temp\SERVICES.EXE

    Filesize

    203KB

    MD5

    fbf4540d5b491f75fe1c22ac4815fa83

    SHA1

    83275825f4b8c75bb0b7395baf910a64d2dffe61

    SHA256

    e4d9229c04e7024390df8fae3a78756ac414064a5d5895c1adb67e25d034c8b6

    SHA512

    1b74e235dd1681f7a3c047f3feff131bd898464e3a98e32c3c7f6c68bd2b6a76e7c3e5a06d4c8f31c1a40b8e62920a90fb50d05eb8711eee875d31f1bf18bda1

  • memory/2920-29-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2920-18-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2920-17-0x0000000000DB0000-0x0000000000DD8000-memory.dmp

    Filesize

    160KB

  • memory/2976-20-0x0000000073450000-0x00000000739FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-21-0x0000000073450000-0x00000000739FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-19-0x0000000002140000-0x0000000002180000-memory.dmp

    Filesize

    256KB

  • memory/2976-30-0x0000000002140000-0x0000000002180000-memory.dmp

    Filesize

    256KB

  • memory/2976-31-0x0000000073450000-0x00000000739FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-32-0x0000000073450000-0x00000000739FB000-memory.dmp

    Filesize

    5.7MB