Overview

overview

10

Static

static

C03FF0CE39...39.exe

windows7_x64

1

C03FF0CE39...39.exe

windows10_x64

10

Sharing

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General

  • Target

    C03FF0CE39B7D8DA85F04D0B5F7BC239.exe

  • Size

    8.3MB

  • Sample

    210626-7gye3bzejn

  • MD5

    c03ff0ce39b7d8da85f04d0b5f7bc239

  • SHA1

    0ecca66bde2af894b8e3948aefd493653dd7e80c

  • SHA256

    b26c95976936054915610598a19dabb10dd52f47b9edbdbadc079d2e91717814

  • SHA512

    51f67bda30ae15cc4246caacf7df2c04e03cf16ab610d5519d16498ed22185f20e512b9a71c862eb456979248dadf9b7c51709d75e1c3fbdf03c53f685c0390e

Score
10/10
asyncratnanocorequasaroffice04skidyevasionkeyloggerpersistencepyinstallerratspywarestealertrojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:44685

abhorrent-thrill.auto.playit.gg:6606

abhorrent-thrill.auto.playit.gg:7707

abhorrent-thrill.auto.playit.gg:8808

abhorrent-thrill.auto.playit.gg:44685
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    ohjG5kcKRKtg2XrNKsOJVVYBu912JX98

  • anti_detection

    true

  • autorun

    true

  • bdos

    false

  • delay

    Default

  • host

    127.0.0.1,abhorrent-thrill.auto.playit.gg

  • hwid

    3

  • install_file

  • install_folder

    %Temp%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    6606,7707,8808,44685

  • version

    0.5.7B

aes.plain

Extracted

Family

quasar

Version

2.8.0.1

Botnet

Skidy

C2

perpetual-scale.auto.playit.gg:2222

perpetual-scale.auto.playit.gg:42950
Mutex

Z2hwbwAO4KsTWaRrk4

Attributes
  • encryption_key

    j6L6FBTBoAkfjzdJSyKV

  • install_name

    SystemUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Widnows

  • subdirectory

    Windows

Extracted

Family

nanocore

Version

1.2.2.0

C2

woebegone-smoke.auto.playit.gg:56524

127.0.0.1:56524
Mutex

16379ea1-a031-406e-8390-45626cd49a18

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-04-03T17:10:19.767678136Z

  • 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

    56524

  • 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

    16379ea1-a031-406e-8390-45626cd49a18

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    woebegone-smoke.auto.playit.gg

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • 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

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

natural-sugar.auto.playit.gg:47228

Mutex

c75b427d-297a-4441-a10e-61549c3a96a6

Attributes
  • encryption_key

    BA18DC81742C395092303769719E92414511C54A

  • install_name

    windows.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Winows

  • subdirectory

    windows

Targets

    • Target

      C03FF0CE39B7D8DA85F04D0B5F7BC239.exe

    • Size

      8.3MB

    • MD5

      c03ff0ce39b7d8da85f04d0b5f7bc239

    • SHA1

      0ecca66bde2af894b8e3948aefd493653dd7e80c

    • SHA256

      b26c95976936054915610598a19dabb10dd52f47b9edbdbadc079d2e91717814

    • SHA512

      51f67bda30ae15cc4246caacf7df2c04e03cf16ab610d5519d16498ed22185f20e512b9a71c862eb456979248dadf9b7c51709d75e1c3fbdf03c53f685c0390e

    Score
    10/10
    asyncratnanocorequasaroffice04skidyevasionkeyloggerpersistencepyinstallerratspywarestealertrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

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

Credential Access

Discovery

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks