Overview

overview

10

Static

static

3

4a36eccbb4...18.exe

windows7-x64

10

4a36eccbb4...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-10-2024 22:01

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General

  • Target

    4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe

  • Size

    903KB

  • MD5

    4a36eccbb48f54d243b7982530cfa61b

  • SHA1

    fbf72fc16184a18f6a15800daa1e828a514fc392

  • SHA256

    eb2c54829751a21c9865767bcd7056892a02a66f73bf39c2c07a1eb6e3ea5599

  • SHA512

    db680deea1b90f6457c840195f33c36ddf851e05e807d5f6e1f8fca26bdd180a56826db80916e9e1146845a78e3026d6d0f1e5ee25304829828847a40fb4a520

  • SSDEEP

    24576:yJKuPp9AR95yTbUwK/blz88KCw/fLZ1R5:8PpKRyTbUwGlUfF1R

Score
10/10
nanocorediscoveryevasionexecutionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.120:1913

Mutex

d546cc73-3253-46d2-a040-3bee294c3ed7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-21T18:00:18.544248036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1913

  • default_group

    Jojo

  • 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

    d546cc73-3253-46d2-a040-3bee294c3ed7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    79.134.225.120

  • 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
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 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 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe"
      2⤵
        PID:2620
      • C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\4a36eccbb48f54d243b7982530cfa61b_JaffaCakes118.exe"
        2⤵
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2628

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2532-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2532-1-0x00000000002A0000-0x0000000000388000-memory.dmp

      Filesize

      928KB

      Download

    • memory/2532-2-0x0000000074C60000-0x000000007534E000-memory.dmp

      Filesize

      6.9MB

      Download

    • memory/2532-3-0x0000000000390000-0x00000000003A6000-memory.dmp

      Filesize

      88KB

      Download

    • memory/2532-4-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2532-5-0x0000000074C60000-0x000000007534E000-memory.dmp

      Filesize

      6.9MB

      Download

    • memory/2532-6-0x0000000007D70000-0x0000000007E18000-memory.dmp

      Filesize

      672KB

      Download

    • memory/2532-7-0x0000000000600000-0x000000000063A000-memory.dmp

      Filesize

      232KB

      Download

    • memory/2532-22-0x0000000074C60000-0x000000007534E000-memory.dmp

      Filesize

      6.9MB

      Download

    • memory/2628-14-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-12-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-16-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-19-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2628-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-21-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-10-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

      Download

    • memory/2628-24-0x0000000000390000-0x000000000039A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/2628-25-0x00000000003A0000-0x00000000003BE000-memory.dmp

      Filesize

      120KB

      Download

    • memory/2628-26-0x0000000000440000-0x000000000044A000-memory.dmp

      Filesize

      40KB

      Download