Analysis

  • max time kernel
    136s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-09-2022 05:33

General

  • Target

    new order.exe

  • Size

    929KB

  • MD5

    450aa1d2ac8e10a3b8363fe2945462bd

  • SHA1

    173275f693a10f8919c45dfb21f8035c7bc45fb6

  • SHA256

    316ff42588b6cf8c5a435efb67d44d08a2d860bab89612fc3e85ec6e9f4b4455

  • SHA512

    c3f95286f4bd09c87dd41acb12c1279b0cf6a547fed73c7c073c21728503ae8fec4974bdec351b9049acbb3a42f497a9731496073a39ccc6f08234f6df20dc99

  • SSDEEP

    24576:q/hIikSs/wzknb6gT3wvFHANcvqpbInfDcvkCqvH:q/eNhYkbQvp8cNnbcsCqvH

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

146.70.76.43:56281

Mutex

6a8dc68c-2ae6-4a66-b5dc-80cfa679c766

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-03-18T21:54:26.619077736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    56281

  • default_group

    jop

  • 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

    6a8dc68c-2ae6-4a66-b5dc-80cfa679c766

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    146.70.76.43

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    9

  • 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 computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\new order.exe
    "C:\Users\Admin\AppData\Local\Temp\new order.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4240
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2736-142-0x0000000000000000-mapping.dmp
  • memory/2736-147-0x0000000005480000-0x000000000548A000-memory.dmp
    Filesize

    40KB

  • memory/2736-146-0x0000000005580000-0x000000000561C000-memory.dmp
    Filesize

    624KB

  • memory/2736-145-0x00000000054E0000-0x0000000005572000-memory.dmp
    Filesize

    584KB

  • memory/2736-144-0x0000000005A90000-0x0000000006034000-memory.dmp
    Filesize

    5.6MB

  • memory/2736-143-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB

  • memory/3752-133-0x0000000005100000-0x0000000005122000-memory.dmp
    Filesize

    136KB

  • memory/3752-132-0x0000000000360000-0x000000000044C000-memory.dmp
    Filesize

    944KB

  • memory/4240-136-0x00000000051F0000-0x0000000005818000-memory.dmp
    Filesize

    6.2MB

  • memory/4240-141-0x00000000064F0000-0x000000000650A000-memory.dmp
    Filesize

    104KB

  • memory/4240-140-0x0000000007630000-0x0000000007CAA000-memory.dmp
    Filesize

    6.5MB

  • memory/4240-139-0x0000000005FE0000-0x0000000005FFE000-memory.dmp
    Filesize

    120KB

  • memory/4240-138-0x00000000059D0000-0x0000000005A36000-memory.dmp
    Filesize

    408KB

  • memory/4240-137-0x0000000005160000-0x00000000051C6000-memory.dmp
    Filesize

    408KB

  • memory/4240-135-0x0000000004A00000-0x0000000004A36000-memory.dmp
    Filesize

    216KB

  • memory/4240-134-0x0000000000000000-mapping.dmp