Overview

overview

10

Static

static

YASEEN CV ...16.exe

windows7_x64

10

YASEEN CV ...16.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    165s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:52

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General

  • Target

    YASEEN CV REF.2020 06 16.exe

  • Size

    341KB

  • MD5

    506ae668ac52b8ea017fb9167582a690

  • SHA1

    5aa054596fc9b66a68136d5a3e243f4f4605d6af

  • SHA256

    d49621996ba7b43c8d7cb35403ccbb13c50f1a1dddc9492ce7a74abd8597a115

  • SHA512

    dde5fb4cc8bbf7dcd667989e18ed380eb9cdf5ed182db06d0ea5d76d21d0300ad9676b46253bcd277eac94aa58bfd8e09c9b79fe64267d257ef9060d4d1bcada

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

INDOMIE.LINKPC.NET:1818

185.140.53.9:1818
Mutex

c2760388-119a-4b64-9007-01bc88004481

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.9

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-19T16:48:01.198372836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1818

  • default_group

    INDOMIE

  • 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

    c2760388-119a-4b64-9007-01bc88004481

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    INDOMIE.LINKPC.NET

  • 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

Signatures

  • NanoCore

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

    keyloggertrojanstealerspywarenanocore
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YASEEN CV REF.2020 06 16.exe
    "C:\Users\Admin\AppData\Local\Temp\YASEEN CV REF.2020 06 16.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OywQzhQjZxD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp62D1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3292
    • C:\Users\Admin\AppData\Local\Temp\YASEEN CV REF.2020 06 16.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:4716

Network

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

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\YASEEN CV REF.2020 06 16.exe.log
    Filesize

    408B

    MD5

    8adbb2cb7759fdcbc51cfbf0bfd7c867

    SHA1

    f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

    SHA256

    c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

    SHA512

    f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp62D1.tmp
    Filesize

    1KB

    MD5

    a604625c58acc492779ddbacfe783114

    SHA1

    189445a57435ebde7b6fb5de32c99e6efd98ae64

    SHA256

    4d116130d9cac981006eed24a08b1cc9923202e47caf1da307660e7fabc5d97a

    SHA512

    13c2e943779b331dcdb218d2df8c0981f84e83309ec562456bd750fe829e28c0e779ba248e59a45fb4e12e0525050c45806c475eaf53488deb508ed358a4d124

    Download Submit
  • memory/1788-130-0x0000000074D70000-0x0000000075321000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3292-131-0x0000000000000000-mapping.dmp
    Download
  • memory/4716-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4716-134-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/4716-136-0x0000000074D70000-0x0000000075321000-memory.dmp
    Filesize

    5.7MB

    Download