Analysis

  • max time kernel
    58s
  • max time network
    160s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08-10-2021 14:08

General

  • Target

    Peixoto - QUOTATION LIST.exe

  • Size

    1.1MB

  • MD5

    0f129aa97048f7ec0557b211349a2ce0

  • SHA1

    b597185c94fac60cd7e25db83bfb39ed07409289

  • SHA256

    fcf3b27fdc54c53a1f7510abf8bdf748bd3199813d0294738feba29c7c1054d1

  • SHA512

    0780847d48ddf9336633665560185e58c60bfd516d7ceb2139de897c526e3d23236667a7bcc199009c37e1d8b153c40377d9717c51f97450967297f9d3ba759a

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.222.57.149:4557

127.0.0.1:4557

Mutex

28a7a9fa-8b88-4ff1-be22-9ecea4e92a97

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-18T08:59:40.142792636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4557

  • default_group

    T-C

  • 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

    28a7a9fa-8b88-4ff1-be22-9ecea4e92a97

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.222.57.149

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Peixoto - QUOTATION LIST.exe
    "C:\Users\Admin\AppData\Local\Temp\Peixoto - QUOTATION LIST.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Users\Admin\AppData\Local\Temp\Peixoto - QUOTATION LIST.exe
      "C:\Users\Admin\AppData\Local\Temp\Peixoto - QUOTATION LIST.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Peixoto - QUOTATION LIST.exe.log

    MD5

    605f809fab8c19729d39d075f7ffdb53

    SHA1

    c546f877c9bd53563174a90312a8337fdfc5fdd9

    SHA256

    6904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556

    SHA512

    82cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3

  • memory/996-116-0x0000000005690000-0x000000000577C000-memory.dmp

    Filesize

    944KB

  • memory/996-117-0x0000000005AC0000-0x0000000005AF3000-memory.dmp

    Filesize

    204KB

  • memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp

    Filesize

    4KB

  • memory/996-126-0x0000000005610000-0x0000000005611000-memory.dmp

    Filesize

    4KB

  • memory/2040-131-0x0000000006020000-0x0000000006023000-memory.dmp

    Filesize

    12KB

  • memory/2040-133-0x0000000006650000-0x0000000006665000-memory.dmp

    Filesize

    84KB

  • memory/2040-124-0x00000000052B0000-0x00000000052B1000-memory.dmp

    Filesize

    4KB

  • memory/2040-125-0x0000000005350000-0x0000000005351000-memory.dmp

    Filesize

    4KB

  • memory/2040-119-0x000000000041E792-mapping.dmp

  • memory/2040-127-0x0000000005260000-0x0000000005261000-memory.dmp

    Filesize

    4KB

  • memory/2040-128-0x00000000051D0000-0x00000000056CE000-memory.dmp

    Filesize

    5.0MB

  • memory/2040-129-0x00000000056B0000-0x00000000056B5000-memory.dmp

    Filesize

    20KB

  • memory/2040-130-0x0000000005F00000-0x0000000005F19000-memory.dmp

    Filesize

    100KB

  • memory/2040-118-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2040-132-0x0000000006640000-0x000000000664D000-memory.dmp

    Filesize

    52KB

  • memory/2040-123-0x00000000056D0000-0x00000000056D1000-memory.dmp

    Filesize

    4KB

  • memory/2040-134-0x0000000006680000-0x0000000006686000-memory.dmp

    Filesize

    24KB

  • memory/2040-135-0x00000000066A0000-0x00000000066AC000-memory.dmp

    Filesize

    48KB

  • memory/2040-136-0x00000000066B0000-0x00000000066B7000-memory.dmp

    Filesize

    28KB

  • memory/2040-137-0x00000000066C0000-0x00000000066C6000-memory.dmp

    Filesize

    24KB

  • memory/2040-138-0x00000000066D0000-0x00000000066DD000-memory.dmp

    Filesize

    52KB

  • memory/2040-139-0x00000000066E0000-0x00000000066E9000-memory.dmp

    Filesize

    36KB

  • memory/2040-140-0x00000000066F0000-0x00000000066FF000-memory.dmp

    Filesize

    60KB

  • memory/2040-141-0x0000000006710000-0x000000000671A000-memory.dmp

    Filesize

    40KB

  • memory/2040-142-0x0000000006720000-0x0000000006749000-memory.dmp

    Filesize

    164KB

  • memory/2040-143-0x0000000006760000-0x000000000676F000-memory.dmp

    Filesize

    60KB

  • memory/2040-144-0x0000000006930000-0x0000000006931000-memory.dmp

    Filesize

    4KB