Analysis

  • max time kernel
    15s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    03-01-2021 14:39

General

  • Target

    Shiping Doc BL.exe

  • Size

    330KB

  • MD5

    dde408276c4221fb18dbec881a1da4fd

  • SHA1

    9e260193d65cc3651d9c7ced09acbc65682f88a4

  • SHA256

    d64a4482514be4bb53344b4712d850bb5ad28bd589a5cf3f4d2d966d2ea9ef65

  • SHA512

    f919350c088dd61b1d51db3d2bb91fcad2811055959663e9a826c52866f1bdae7364af31937440f1d6830bd0c17b9e5c80a47a2a4043fcb7e503a1ffbe15d501

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chinomso.duckdns.org:7688

Mutex

5c856c52-5125-42de-9ed3-2389e16da064

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    chinomso.duckdns.org

  • backup_dns_server

    chinomso.duckdns.org

  • buffer_size

    65535

  • build_time

    2020-10-13T03:36:21.868380136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    7688

  • 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

    5c856c52-5125-42de-9ed3-2389e16da064

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    chinomso.duckdns.org

  • primary_dns_server

    chinomso.duckdns.org

  • request_elevation

    false

  • 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.

  • 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shiping Doc BL.exe
    "C:\Users\Admin\AppData\Local\Temp\Shiping Doc BL.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\Local\Temp\Shiping Doc BL.exe
      "C:\Users\Admin\AppData\Local\Temp\Shiping Doc BL.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
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp30C1.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1960
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3257.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:896

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

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp30C1.tmp
    MD5

    e5b205ff4752a7179b051abd1cb3a3d5

    SHA1

    bb1aed8d8e1553088f6d682e02f969885d184483

    SHA256

    6b4ea6c52f73ac31be1cff5fde2171a3c8edba6344db1dc4da0aff974d449bc9

    SHA512

    b540e223683d33c16152162ae957628ecabe07067c314abad2a691c1918bfcb89ca59ede6e6156957ccc83c5c4869ca3f16bb48603d3b59908b6dfdee5b11613

  • C:\Users\Admin\AppData\Local\Temp\tmp3257.tmp
    MD5

    819bdbdac3be050783d203020e6c4c30

    SHA1

    a373521fceb21cac8b93e55ee48578e40a6e740b

    SHA256

    0e5dedca6d0d3c50ebcedb5bbf51ef3d434eb6b43da46764205de7636131f053

    SHA512

    cece1c4d8b4db79fc6e3cd225efaccdf9d2493f28991b1d48439944af38aaa61a215bd00a0beedcbdecc4f1ec5be0843774375a483f3d4a573a3980c54798cbd

  • memory/896-10-0x0000000000000000-mapping.dmp
  • memory/1208-15-0x0000000000BE0000-0x0000000000BED000-memory.dmp
    Filesize

    52KB

  • memory/1208-17-0x0000000000C60000-0x0000000000C66000-memory.dmp
    Filesize

    24KB

  • memory/1208-26-0x0000000004360000-0x000000000436F000-memory.dmp
    Filesize

    60KB

  • memory/1208-5-0x00000000745C0000-0x0000000074CAE000-memory.dmp
    Filesize

    6.9MB

  • memory/1208-4-0x0000000000400000-0x0000000000448000-memory.dmp
    Filesize

    288KB

  • memory/1208-3-0x000000000040188B-mapping.dmp
  • memory/1208-12-0x00000000009D0000-0x00000000009D5000-memory.dmp
    Filesize

    20KB

  • memory/1208-13-0x0000000000AD0000-0x0000000000AE9000-memory.dmp
    Filesize

    100KB

  • memory/1208-14-0x0000000000AF0000-0x0000000000AF3000-memory.dmp
    Filesize

    12KB

  • memory/1208-2-0x0000000000400000-0x0000000000448000-memory.dmp
    Filesize

    288KB

  • memory/1208-16-0x0000000000BF0000-0x0000000000C05000-memory.dmp
    Filesize

    84KB

  • memory/1208-6-0x00000000004C0000-0x00000000004F3000-memory.dmp
    Filesize

    204KB

  • memory/1208-18-0x0000000000C80000-0x0000000000C8C000-memory.dmp
    Filesize

    48KB

  • memory/1208-19-0x00000000021B0000-0x00000000021B7000-memory.dmp
    Filesize

    28KB

  • memory/1208-20-0x00000000021C0000-0x00000000021C6000-memory.dmp
    Filesize

    24KB

  • memory/1208-21-0x00000000021D0000-0x00000000021DD000-memory.dmp
    Filesize

    52KB

  • memory/1208-22-0x0000000002220000-0x0000000002229000-memory.dmp
    Filesize

    36KB

  • memory/1208-23-0x0000000004330000-0x000000000433F000-memory.dmp
    Filesize

    60KB

  • memory/1208-24-0x0000000004340000-0x000000000434A000-memory.dmp
    Filesize

    40KB

  • memory/1208-25-0x0000000004E90000-0x0000000004EB9000-memory.dmp
    Filesize

    164KB

  • memory/1960-8-0x0000000000000000-mapping.dmp