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Overview

overview

10

Static

static

5

b64fc1cbb6...18.exe

windows7-x64

10

b64fc1cbb6...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22/08/2024, 04:17

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General

  • Target

    b64fc1cbb64ae535d108949da20d0d2d_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    b64fc1cbb64ae535d108949da20d0d2d

  • SHA1

    2cf3db516f2e6421340bd99c2913a294c00998a7

  • SHA256

    09abdbf91f3f86c2eee25c0f55de33b0ce8eb5c1047b212a3b0496a0ba5c4186

  • SHA512

    98b1a6665736c431a296f62d7b37bdc2007840df7ebbc223cce7286620b814a09ba2b2c24528bedb721d7272918e55e2bc87367cf10c5e9266b81862833fc8d8

  • SSDEEP

    24576:JCdxte/80jYLT3U1jfsWahSaGQFzqq3Y37VIHotkQ:4w80cTsjkWaho37uHoJ

Score
10/10
nanocorediscoveryevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

160.202.163.240:1850

127.0.0.1:1850
Mutex

4aac0c69-f65b-4d62-8bf5-e2dce5cf1814

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-11-19T06:26:23.311298036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1850

  • default_group

    February

  • 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

    4aac0c69-f65b-4d62-8bf5-e2dce5cf1814

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    160.202.163.240

  • 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
  • Drops startup file 1 IoCs
  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b64fc1cbb64ae535d108949da20d0d2d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b64fc1cbb64ae535d108949da20d0d2d_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/752-1-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/752-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/752-10-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/752-9-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/752-3-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/752-11-0x0000000073E22000-0x0000000073E24000-memory.dmp

    Filesize

    8KB

    Download

  • memory/752-14-0x0000000073E22000-0x0000000073E24000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1956-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

    Filesize

    4KB

    Download