Overview

overview

10

Static

static

RF172474228ES.exe

windows7_x64

10

RF172474228ES.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:17

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General

  • Target

    RF172474228ES.exe

  • Size

    506KB

  • MD5

    8bbd8695bdfb7fb7438053fcdb6d79a4

  • SHA1

    202966c54b72362c2e8c18e09d368eedd7dcc62a

  • SHA256

    d278d26f9221b6542223942ce10c1a6c34c8a550c0d8e0d724798cadaf160bfd

  • SHA512

    716cfd55b155014338fa2ff99e9c999a98163aa0977d1a274e3ca9505aa681509dccfe3853809c297140f58d9e8c6c669865bf285a0aabf552fe4b246feb849c

Score
10/10
nanocorekeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.9:9124

127.0.0.1:9124
Mutex

abee0a6e-9120-44aa-a70c-1e32c9a07128

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-05T19:51:22.629259936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    9124

  • default_group

    Wish

  • 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

    abee0a6e-9120-44aa-a70c-1e32c9a07128

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    185.140.53.9

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 1 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RF172474228ES.exe
    "C:\Users\Admin\AppData\Local\Temp\RF172474228ES.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\skzSSQhxUahA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E96.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4520
    • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3668

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7E96.tmp
    Filesize

    1KB

    MD5

    ff85fa666ae3822f8be113c5b40652df

    SHA1

    071d8a8500f9eabdd47d0ad9bd93278e6b651f0a

    SHA256

    c563fc8c6d81ac40cfe4fc2e8b3ef41b8274f071babef24c067e40a0fa835859

    SHA512

    91d2604e92ebbf6964c7a7237f14d1a5baca2e56df71862e4b095a01c1a5f0333acb031ca913ab19dfe7ac05bdd387dd2d8e279c5c0d222740651752891e2652

    Download Submit
  • memory/3668-138-0x0000000000000000-mapping.dmp
    Download
  • memory/3668-139-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/4520-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4716-130-0x00000000006E0000-0x0000000000764000-memory.dmp
    Filesize

    528KB

    Download
  • memory/4716-131-0x0000000005130000-0x00000000051CC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/4716-132-0x0000000005780000-0x0000000005D24000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4716-133-0x00000000051D0000-0x0000000005262000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4716-134-0x00000000050F0000-0x00000000050FA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4716-135-0x00000000053F0000-0x0000000005446000-memory.dmp
    Filesize

    344KB

    Download