Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 05:55

General

  • Target

    1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe

  • Size

    540KB

  • MD5

    0371188ce37c73afe58fafb21af1ccef

  • SHA1

    e23ab95077403549e87df4a49508a535c8b2b08a

  • SHA256

    1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879

  • SHA512

    6b79573e4bee8ca8f57db7f7e23d2b6d60eaee5ab8d3bebee3125c6ad0a61a044127d947641d34838b2ea50e7155de5138787441d8b445d165614cc1041e455a

  • SSDEEP

    6144:LGxhLJCrIBNvFre9kfSBWI0N0QqIcQuvH1eI+jHUsdfhnNV6G2AZsd+jxlDur4Rz:axLLSbWIpQqIzuvw5BEAq+jxlKr4J

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

178.170.138.163:5626

Mutex

01f9d977-6605-495e-941a-753d3cd6dc0b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-02-27T13:54:38.807349736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5626

  • default_group

    4Maticross.

  • 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

    01f9d977-6605-495e-941a-753d3cd6dc0b

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    178.170.138.163

  • 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.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 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 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe
    "C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fYFblKct" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B7B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4196
    • C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe
      "C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2408-27-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/2408-26-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/2408-25-0x0000000005AB0000-0x0000000005ABA000-memory.dmp

    Filesize

    40KB

  • memory/2408-24-0x0000000005980000-0x000000000599E000-memory.dmp

    Filesize

    120KB

  • memory/2408-23-0x00000000057F0000-0x00000000057FA000-memory.dmp

    Filesize

    40KB

  • memory/2408-21-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/2408-19-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/2408-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/5012-5-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-10-0x0000000007C20000-0x0000000007C7C000-memory.dmp

    Filesize

    368KB

  • memory/5012-9-0x0000000007AD0000-0x0000000007B6C000-memory.dmp

    Filesize

    624KB

  • memory/5012-8-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-7-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

    Filesize

    4KB

  • memory/5012-20-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-6-0x0000000005C10000-0x0000000005C1E000-memory.dmp

    Filesize

    56KB

  • memory/5012-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

    Filesize

    4KB

  • memory/5012-4-0x0000000004E00000-0x0000000004E0A000-memory.dmp

    Filesize

    40KB

  • memory/5012-3-0x0000000004D60000-0x0000000004DF2000-memory.dmp

    Filesize

    584KB

  • memory/5012-2-0x0000000005270000-0x0000000005814000-memory.dmp

    Filesize

    5.6MB

  • memory/5012-1-0x0000000000420000-0x00000000004AE000-memory.dmp

    Filesize

    568KB