Overview

overview

10

Static

static

1

fb6aca6ece...18.vbs

windows7-x64

10

fb6aca6ece...18.vbs

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    fb6aca6ece036febbbec836dd55d1126_JaffaCakes118

  • Size

    1.5MB

  • Sample

    240419-3k1t7sbc7z

  • MD5

    fb6aca6ece036febbbec836dd55d1126

  • SHA1

    d9b521b67eae457b24cdb8f31665f7f276e4a14a

  • SHA256

    44a6344f92cd1c3b44c1a6ffa47b1c9bef04261f06f2c523e674ec8eeafe73a8

  • SHA512

    388eec18ef7727f1d1e54d4a8ae268ae7530fa315e01a9a1bce947d77369574fe05632e37b3809574793f96f3b129d567ecb6dea01d8b79afd35f240f38f4a39

  • SSDEEP

    24576:Or4MUjzwp6YZcyXFt7J7UMx7F0l3ad42GdIUtBa71AakYeZyXFW7ROUMx4M6A:OkQ6m5t7dlUAUq7eKW7APp

Score
10/10
asyncratnanocorezgratevasionkeyloggerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sys2021.linkpc.net:11940

191.96.25.26:11940
Mutex

c687c38e-2b2d-4d96-b5eb-9a31ccba603d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    191.96.25.26

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-31T11:35:52.654855036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    11940

  • default_group

    Sys

  • 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

    c687c38e-2b2d-4d96-b5eb-9a31ccba603d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sys2021.linkpc.net

  • 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

Extracted

Family

asyncrat

Version

0.5.2

C2

sys2021.linkpc.net:6606

Mutex

cd6-c2e0e3fbeef6

Attributes
  • delay

    0

  • install

    false

  • install_file

    notepad.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      fb6aca6ece036febbbec836dd55d1126_JaffaCakes118

    • Size

      1.5MB

    • MD5

      fb6aca6ece036febbbec836dd55d1126

    • SHA1

      d9b521b67eae457b24cdb8f31665f7f276e4a14a

    • SHA256

      44a6344f92cd1c3b44c1a6ffa47b1c9bef04261f06f2c523e674ec8eeafe73a8

    • SHA512

      388eec18ef7727f1d1e54d4a8ae268ae7530fa315e01a9a1bce947d77369574fe05632e37b3809574793f96f3b129d567ecb6dea01d8b79afd35f240f38f4a39

    • SSDEEP

      24576:Or4MUjzwp6YZcyXFt7J7UMx7F0l3ad42GdIUtBa71AakYeZyXFW7ROUMx4M6A:OkQ6m5t7dlUAUq7eKW7APp

    Score
    10/10
    asyncratnanocorezgratevasionkeyloggerpersistenceratspywarestealertrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect ZGRat V1

    • Modifies WinLogon for persistence

      persistence

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • ZGRat

      ZGRat is remote access trojan written in C#.

      ratzgrat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks