Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 16:26

General

  • Target

    ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118.exe

  • Size

    688KB

  • MD5

    ffb31463ba10f652b0dd8bc10e734b46

  • SHA1

    bfc2c18c7ea8f41823e5e1d89d2971fafa4966dd

  • SHA256

    8ca049e0699925d3ea76cb769814c220c410f29eae2f862ddbb03361e5a92d73

  • SHA512

    7cbc5aa59554d36eaf0daab10e1c7353b068cb65fb2afe225ef4812e43c90b1d0681c17c0924816a27850277c8b3b39fd388c72232b57615220dbbac9976a2e6

  • SSDEEP

    12288:Xx3TRu7iS/d3486AVmnmnk8RE9P6aowdJ5bUB0XKXHK:XZRxS/d3Y0RRE1Jq6XKa

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.193.75.228:1985

127.0.0.1:1985

Mutex

76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-07T21:13:54.381433036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    KingT

  • 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

    76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    91.193.75.228

  • 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.

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • 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\ffb31463ba10f652b0dd8bc10e734b46_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2612
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2612-35-0x000000006F670000-0x000000006FC1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2612-27-0x000000006F670000-0x000000006FC1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2612-28-0x000000006F670000-0x000000006FC1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2612-30-0x00000000024B0000-0x00000000024F0000-memory.dmp

    Filesize

    256KB

  • memory/2612-33-0x00000000024B0000-0x00000000024F0000-memory.dmp

    Filesize

    256KB

  • memory/2612-34-0x00000000024B0000-0x00000000024F0000-memory.dmp

    Filesize

    256KB

  • memory/2656-3-0x0000000000260000-0x0000000000272000-memory.dmp

    Filesize

    72KB

  • memory/2656-7-0x0000000000980000-0x00000000009BA000-memory.dmp

    Filesize

    232KB

  • memory/2656-0-0x0000000000A40000-0x0000000000AF2000-memory.dmp

    Filesize

    712KB

  • memory/2656-6-0x00000000059B0000-0x0000000005A32000-memory.dmp

    Filesize

    520KB

  • memory/2656-5-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2656-4-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2656-20-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2656-2-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2656-1-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-31-0x0000000000680000-0x000000000068A000-memory.dmp

    Filesize

    40KB

  • memory/2852-21-0x00000000005D0000-0x0000000000610000-memory.dmp

    Filesize

    256KB

  • memory/2852-19-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-26-0x0000000000670000-0x000000000067A000-memory.dmp

    Filesize

    40KB

  • memory/2852-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-29-0x00000000006C0000-0x00000000006DE000-memory.dmp

    Filesize

    120KB

  • memory/2852-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2852-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-32-0x00000000005D0000-0x0000000000610000-memory.dmp

    Filesize

    256KB

  • memory/2852-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2852-36-0x0000000074650000-0x0000000074D3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2852-37-0x00000000005D0000-0x0000000000610000-memory.dmp

    Filesize

    256KB

  • memory/2852-38-0x00000000005D0000-0x0000000000610000-memory.dmp

    Filesize

    256KB