Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:11

General

  • Target

    Order & Specification.exe

  • Size

    435KB

  • MD5

    6ed8d16bcfa3fdb721ce6f75100a89fa

  • SHA1

    3a13e7679803db6b5fa4082a10e9981301967f3d

  • SHA256

    953b28fd61cb8eb78e1fca699aead009a12bb5a0a6a8d42b0447cbe2bf828143

  • SHA512

    df4143a936ed0a6d8b9624c981c1a1e100995c82e1b7f05b0458940aaab2108a4e50504002cf5e69ef7721d241fe75cdb2eea0e9ad7f4103c44f7862d3b1d8c4

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ome2j3bw.3utilities.com:1907

Mutex

bec896f1-592b-47d9-b6d7-441c6093682d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ome2j3bw.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-13T02:35:20.505000936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    3997

  • connection_port

    1907

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    29997

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    bec896f1-592b-47d9-b6d7-441c6093682d

  • mutex_timeout

    4995

  • prevent_system_sleep

    false

  • primary_connection_host

    ome2j3bw.3utilities.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    4997

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    4934

  • 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.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 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 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order & Specification.exe
    "C:\Users\Admin\AppData\Local\Temp\Order & Specification.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WDiaLPGPj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE16A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1828
    • C:\Users\Admin\AppData\Local\Temp\Order & Specification.exe
      "{path}"
      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:1836

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE16A.tmp
    Filesize

    1KB

    MD5

    f7b6ffe0c476fac2ead0d3db85e5c34d

    SHA1

    3ca18c8a7e0918d97c95dce44d73c2dadf4b61c9

    SHA256

    865b01cd6c694e3fe7e6f3cec03cc8c2096a223b724e6df9a279714ab35578c9

    SHA512

    c67ec16081c9ec1dc647a6f1f6ad46fdce8819d705ace18be65591251637fccf570a085c7ac93db0bae75147df7738e8b0a8249b104efc7e4e655c6b6c66183d

  • memory/1472-54-0x0000000074F21000-0x0000000074F23000-memory.dmp
    Filesize

    8KB

  • memory/1472-55-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1828-56-0x0000000000000000-mapping.dmp
  • memory/1836-61-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-59-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-58-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-62-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-65-0x000000000041E792-mapping.dmp
  • memory/1836-67-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-69-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1836-71-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB