Analysis

  • max time kernel
    152s
  • max time network
    95s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 08:40

General

  • Target

    6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe

  • Size

    96KB

  • MD5

    9eaecb91503ed795a54f7926c80a9dd0

  • SHA1

    a820c0432d624d07088d917ed97d544e325f09be

  • SHA256

    6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66

  • SHA512

    61a9cb7013819defbd0bfe440521f201d435d3a33029c1288d91ed118650d4e6b215bb4217ac0430a740807a134aa020e4061785c1a0c19ec6d43181a2209a64

  • SSDEEP

    1536:u2tAfSnAa4oeUZPqBtGyk6VOqDLPv/9A0PkVOq8DbsjNbbQOXFYx8:u2gQAa4o5WtGV9qXn/9A0S8DbsTYe

Malware Config

Extracted

Family

nanocore

Attributes
  • activate_away_mode

    false

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    0

  • build_time

    0001-01-01T00:00:00Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    0

  • connection_port

    0

  • default_group

  • enable_debug_mode

    false

  • gc_threshold

    0

  • keep_alive_timeout

    0

  • keyboard_logging

    false

  • lan_timeout

    0

  • max_packet_size

    0

  • mutex

  • mutex_timeout

    0

  • prevent_system_sleep

    false

  • primary_connection_host

  • primary_dns_server

  • request_elevation

    false

  • restart_delay

    0

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    0

  • use_custom_dns_server

    false

  • version

  • wan_timeout

    0

Signatures

  • NanoCore

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe
    "C:\Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.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:1780
    • C:\Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe
      "C:\Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      PID:592

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

  • C:\Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe
    Filesize

    96KB

    MD5

    9eaecb91503ed795a54f7926c80a9dd0

    SHA1

    a820c0432d624d07088d917ed97d544e325f09be

    SHA256

    6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66

    SHA512

    61a9cb7013819defbd0bfe440521f201d435d3a33029c1288d91ed118650d4e6b215bb4217ac0430a740807a134aa020e4061785c1a0c19ec6d43181a2209a64

  • \Users\Admin\AppData\Local\Temp\6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66.exe
    Filesize

    96KB

    MD5

    9eaecb91503ed795a54f7926c80a9dd0

    SHA1

    a820c0432d624d07088d917ed97d544e325f09be

    SHA256

    6bb424844780ce4efed353b478d7294852cbf1264107d2904ac9760e03a49b66

    SHA512

    61a9cb7013819defbd0bfe440521f201d435d3a33029c1288d91ed118650d4e6b215bb4217ac0430a740807a134aa020e4061785c1a0c19ec6d43181a2209a64

  • memory/592-63-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-58-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-62-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-61-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-59-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-64-0x000000000041EDAE-mapping.dmp
  • memory/592-67-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-69-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/592-71-0x0000000074C50000-0x00000000751FB000-memory.dmp
    Filesize

    5.7MB

  • memory/592-72-0x0000000074C50000-0x00000000751FB000-memory.dmp
    Filesize

    5.7MB

  • memory/1780-54-0x00000000761E1000-0x00000000761E3000-memory.dmp
    Filesize

    8KB

  • memory/1780-56-0x0000000074C50000-0x00000000751FB000-memory.dmp
    Filesize

    5.7MB

  • memory/1780-55-0x0000000074C50000-0x00000000751FB000-memory.dmp
    Filesize

    5.7MB