Analysis

  • max time kernel
    101s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    05-07-2022 03:00

General

  • Target

    PAYMENT.exe

  • Size

    642KB

  • MD5

    c13fd617e3d71f62344df59f397b1270

  • SHA1

    9d771b382e9f505fd84a35876919ebfae6dc6343

  • SHA256

    de7bcd7ffa573ffb32e5523cdea0a0fa39bde98a4610f9e791720fa33bf7207a

  • SHA512

    7f24cabbf7420e92beeb95e486434d610b765c54eb8704b1171b6ce6b9c1e7a40cc887ae041eb6d345c49a43dbb991cda6cfc9119fcead62056ea76564dc36f1

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

derananocore.ddns.net:1187

194.87.84.118:1187

Mutex

aee28d0a-78bc-4586-8c8c-8f93e292a11b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.87.84.118

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-04-09T10:37:01.806212736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1187

  • 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

    aee28d0a-78bc-4586-8c8c-8f93e292a11b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    derananocore.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.

  • suricata: ET MALWARE Possible NanoCore C2 60B

    suricata: ET MALWARE Possible NanoCore C2 60B

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT.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:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/756-54-0x0000000001320000-0x00000000013C6000-memory.dmp
    Filesize

    664KB

  • memory/756-55-0x00000000755B1000-0x00000000755B3000-memory.dmp
    Filesize

    8KB

  • memory/756-56-0x0000000000960000-0x0000000000980000-memory.dmp
    Filesize

    128KB

  • memory/756-57-0x0000000000A40000-0x0000000000A4E000-memory.dmp
    Filesize

    56KB

  • memory/756-58-0x0000000005450000-0x00000000054CE000-memory.dmp
    Filesize

    504KB

  • memory/756-59-0x00000000047D0000-0x000000000480A000-memory.dmp
    Filesize

    232KB

  • memory/2012-60-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-61-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-63-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-67-0x000000000041E792-mapping.dmp
  • memory/2012-69-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-71-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2012-73-0x0000000000360000-0x000000000036A000-memory.dmp
    Filesize

    40KB

  • memory/2012-74-0x0000000000380000-0x000000000039E000-memory.dmp
    Filesize

    120KB

  • memory/2012-75-0x0000000000370000-0x000000000037A000-memory.dmp
    Filesize

    40KB

  • memory/2012-76-0x00000000004E0000-0x00000000004F2000-memory.dmp
    Filesize

    72KB

  • memory/2012-77-0x00000000004F0000-0x000000000050A000-memory.dmp
    Filesize

    104KB

  • memory/2012-78-0x0000000000690000-0x000000000069E000-memory.dmp
    Filesize

    56KB

  • memory/2012-79-0x0000000000770000-0x0000000000782000-memory.dmp
    Filesize

    72KB

  • memory/2012-80-0x0000000000BA0000-0x0000000000BAE000-memory.dmp
    Filesize

    56KB

  • memory/2012-81-0x0000000000CB0000-0x0000000000CBC000-memory.dmp
    Filesize

    48KB

  • memory/2012-82-0x0000000000CC0000-0x0000000000CD4000-memory.dmp
    Filesize

    80KB

  • memory/2012-83-0x0000000000D10000-0x0000000000D20000-memory.dmp
    Filesize

    64KB

  • memory/2012-84-0x0000000000D20000-0x0000000000D34000-memory.dmp
    Filesize

    80KB

  • memory/2012-85-0x0000000000D70000-0x0000000000D7E000-memory.dmp
    Filesize

    56KB

  • memory/2012-86-0x0000000001240000-0x000000000126E000-memory.dmp
    Filesize

    184KB

  • memory/2012-87-0x00000000012B0000-0x00000000012C4000-memory.dmp
    Filesize

    80KB