Analysis

  • max time kernel
    197s
  • max time network
    209s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:35

General

  • Target

    scanned.exe

  • Size

    651KB

  • MD5

    a8afecd9d10dbaa715872ff1f0d24e23

  • SHA1

    9c4f08f6f5d143b1c2aa11f5eacef02436f4c07c

  • SHA256

    eb29cff78bd1361ba91bcc9abfba066afe030631bffbb0690a6ac9f407a4b5b6

  • SHA512

    d98f29261a58770591ae1c22bda80daf45d883266d1b6016a9d7b664d70e5d1da1578ddcc87af7fa6a5788b4de3440c061cb5a22eb9ecd044e2172f47c7472ea

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

dolphnindia.duckdns.org:6543

Mutex

6d2e093a-b947-44e9-8329-af9bc75608b3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-15T21:20:47.549058536Z

  • 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

    6543

  • default_group

    inv

  • 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

    6d2e093a-b947-44e9-8329-af9bc75608b3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    dolphnindia.duckdns.org

  • 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.

  • Suspicious use of SetThreadContext 1 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\scanned.exe
    "C:\Users\Admin\AppData\Local\Temp\scanned.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LImnhk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8F17.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1672
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "ARP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp964.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1152

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8F17.tmp

    Filesize

    1KB

    MD5

    bb954170c280ec2ad1afdd4d19e0ddaa

    SHA1

    753d342f0325f35b00494a546282f19ec0971c16

    SHA256

    d55d314b7f101b2bc0b76d9f14a6c6e657eb2e4e5c280acbb235e9fca301c4c0

    SHA512

    e5c74f923f7e63fe5070142f6850e7a4d7fbc6b14888e1b6d564bae37a31e2fe46504217bc865a1ba27e121ae0e2a7fdf8a0563854f143a13e7bb7c43d5d2daf

  • C:\Users\Admin\AppData\Local\Temp\tmp964.tmp

    Filesize

    1KB

    MD5

    3e2b26ed8b75ae83a269595180e84ef6

    SHA1

    d30a0335fcce406bca8ba5764288235e6192f608

    SHA256

    108be30aeb8eb31c185a39a6726f26dacbc4e4124951c61a29ade4b7038c71ea

    SHA512

    b6981c68fcb886cc8379a068b96931b9d4f5cc5aa9bdc467e36c4168fe6c5273a2a84d8850b12c11703ec03ac6b1f1950d1e669efcb59fc2402ce4bba9dc03d3

  • memory/960-54-0x0000000000220000-0x00000000002C8000-memory.dmp

    Filesize

    672KB

  • memory/960-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

    Filesize

    8KB

  • memory/960-56-0x0000000000340000-0x0000000000352000-memory.dmp

    Filesize

    72KB

  • memory/960-57-0x00000000020C0000-0x0000000002112000-memory.dmp

    Filesize

    328KB

  • memory/960-58-0x0000000004CE0000-0x0000000004D1A000-memory.dmp

    Filesize

    232KB

  • memory/1152-74-0x0000000000000000-mapping.dmp

  • memory/1180-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-68-0x000000000041E792-mapping.dmp

  • memory/1180-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-72-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1180-76-0x0000000000390000-0x000000000039A000-memory.dmp

    Filesize

    40KB

  • memory/1180-77-0x00000000003E0000-0x00000000003FE000-memory.dmp

    Filesize

    120KB

  • memory/1180-78-0x0000000000520000-0x000000000052A000-memory.dmp

    Filesize

    40KB

  • memory/1180-79-0x0000000004CF5000-0x0000000004D06000-memory.dmp

    Filesize

    68KB

  • memory/1672-59-0x0000000000000000-mapping.dmp