Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 17:08

General

  • Target
    f18ee353e998df41e42bba9b08f8c2bb_JaffaCakes118.exe
  • Size 1.3MB
  • Sample240415-vntlasbe86
  • SHA256 16fff93cc6b11e2340af9b406d49c5ef8f219019ddd5c985c4cd0035d25318e3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.privateemail.com

  • Port

    587

  • Password

    london12#

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • 185.140.53.52:4488

Mutex
  • f373bcfb-36f5-4636-8770-9da829010f62

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-06-03T23:05:48.798919236Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4488

  • default_group

    AUGUST

  • 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

    f373bcfb-36f5-4636-8770-9da829010f62

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.140.53.52

  • 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

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • NanoCore

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

  • AgentTesla payload 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f18ee353e998df41e42bba9b08f8c2bb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f18ee353e998df41e42bba9b08f8c2bb_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explories" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explories.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explories" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explories.exe"
        3⤵
        • Adds Run key to start application
        PID:4112
    • C:\Users\Admin\AppData\Roaming\explories.exe
      "C:\Users\Admin\AppData\Roaming\explories.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Users\Admin\AppData\Roaming\sammorris.exe
        "C:\Users\Admin\AppData\Roaming\sammorris.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4340
      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
        3⤵
        • Executes dropped EXE
        • 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
        • Suspicious use of WriteProcessMemory
        PID:1772
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DSL Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6BB5.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:452
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DSL Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6C62.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:2072

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        InstallUtil.exe

        • Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        • Size 41KB
        • SHA256 ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3
        • MD5 SHA1 SHA512 SSDEEP

        tmp6BB5.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp6BB5.tmp
        • Size 1KB
        • SHA256 c9dab73a0044021d2acbc3952b19dea98cdfd838afc633197bd1bd12d2562fba
        • MD5 SHA1 SHA512

        explories.exe

        • Path C:\Users\Admin\AppData\Roaming\explories.exe
        • Size 1.3MB
        • SHA256 16fff93cc6b11e2340af9b406d49c5ef8f219019ddd5c985c4cd0035d25318e3
        • MD5 SHA1 SHA512 SSDEEP

        sammorris.exe

        • Path C:\Users\Admin\AppData\Roaming\sammorris.exe
        • Size 216KB
        • SHA256 7ffed1437958571da174fa7ad51fa462e95c82151364739e0099155fabda41a8
        • MD5 SHA1 SHA512 SSDEEP

        memory/1772-54-0x0000000004DB0000-0x0000000004DBA000-memory.dmp

        memory/1772-62-0x0000000005E60000-0x0000000005E6A000-memory.dmp

        memory/1772-69-0x0000000004D70000-0x0000000004D80000-memory.dmp

        memory/1772-68-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/1772-64-0x0000000006030000-0x000000000603A000-memory.dmp

        memory/1772-63-0x0000000005EF0000-0x0000000005F0E000-memory.dmp

        memory/1772-53-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/1772-49-0x0000000000400000-0x0000000000438000-memory.dmp

        memory/1832-4-0x0000000004EA0000-0x0000000004F3C000-memory.dmp

        memory/1832-11-0x0000000005080000-0x0000000005090000-memory.dmp

        memory/1832-6-0x00000000063F0000-0x0000000006418000-memory.dmp

        memory/1832-27-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/1832-7-0x00000000064C0000-0x0000000006526000-memory.dmp

        memory/1832-8-0x0000000006480000-0x00000000064A2000-memory.dmp

        memory/1832-9-0x0000000005080000-0x0000000005090000-memory.dmp

        memory/1832-3-0x0000000004E00000-0x0000000004E92000-memory.dmp

        memory/1832-1-0x00000000002A0000-0x00000000003F4000-memory.dmp

        memory/1832-5-0x0000000005080000-0x0000000005090000-memory.dmp

        memory/1832-14-0x0000000005080000-0x0000000005090000-memory.dmp

        memory/1832-0-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/1832-10-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/1832-2-0x00000000053B0000-0x0000000005954000-memory.dmp

        memory/2840-31-0x0000000005640000-0x0000000005650000-memory.dmp

        memory/2840-30-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/2840-52-0x0000000005640000-0x0000000005650000-memory.dmp

        memory/2840-26-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/2840-46-0x0000000009E60000-0x0000000009E66000-memory.dmp

        memory/2840-42-0x0000000007820000-0x0000000007834000-memory.dmp

        memory/2840-28-0x0000000005640000-0x0000000005650000-memory.dmp

        memory/2840-29-0x0000000005640000-0x0000000005650000-memory.dmp

        memory/4340-48-0x0000000005500000-0x0000000005510000-memory.dmp

        memory/4340-65-0x00000000057B0000-0x00000000057C8000-memory.dmp

        memory/4340-66-0x0000000074CC0000-0x0000000075470000-memory.dmp

        memory/4340-67-0x0000000005500000-0x0000000005510000-memory.dmp

        memory/4340-45-0x0000000000AC0000-0x0000000000AFC000-memory.dmp

        memory/4340-44-0x0000000074CC0000-0x0000000075470000-memory.dmp