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Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/11/2024, 14:03

General

  • Target

    ffa7ae7917c6b9fb468599915feaca769b3381e975899e2db42991934bed3724.exe

  • Size

    415KB

  • MD5

    690ca0b3c7061412fa7e8a859c164e9d

  • SHA1

    13777bd543ea02a1e860d5fd41aeb2e12414e6b0

  • SHA256

    ffa7ae7917c6b9fb468599915feaca769b3381e975899e2db42991934bed3724

  • SHA512

    03f582d0a5d94dd633e6c8781a53556ab77059aff29bf83a92941e9d857c8d26ae95a244de4eabd01fd59cfd48e3b62a38ac253b3cd20baf08670cd2d2d48815

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwo:ITNYrnE3bm/CiejewY5vc

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    178.32.224.116

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-28T12:59:38.488799236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    46218

  • default_group

    tourex

  • 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

    4af74541-e3f1-469c-8af7-efe4071b81cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    [email protected]

  • primary_dns_server

  • 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.

  • Nanocore family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ffa7ae7917c6b9fb468599915feaca769b3381e975899e2db42991934bed3724.exe
    "C:\Users\Admin\AppData\Local\Temp\ffa7ae7917c6b9fb468599915feaca769b3381e975899e2db42991934bed3724.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
      "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2876
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        3⤵
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

    Filesize

    415KB

    MD5

    2b568ab998df67ca14a650041671ea74

    SHA1

    256d01794b174f2a5f7014329412b25c25c2c78f

    SHA256

    9cfa46a20e2f1c3d0169b73cf4135796b00a6c57f3e9902b93b00e6e821c2a90

    SHA512

    58fba13c3e550526d40d4f3e7c8eb4e34a007474422c812fa37681589e799b8ab33834baa26c0d438f719e05ac8760dc8e7c500e538e4f01a3f34caf32f19a8c

  • memory/2832-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-35-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/2832-37-0x00000000005F0000-0x00000000005FA000-memory.dmp

    Filesize

    40KB

  • memory/2832-36-0x00000000005D0000-0x00000000005EE000-memory.dmp

    Filesize

    120KB

  • memory/2832-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2832-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-33-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-29-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2832-31-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2876-15-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2876-14-0x0000000000FE0000-0x000000000104E000-memory.dmp

    Filesize

    440KB

  • memory/2876-12-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2876-38-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2876-39-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-0-0x000000007489E000-0x000000007489F000-memory.dmp

    Filesize

    4KB

  • memory/2892-13-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2892-1-0x0000000000850000-0x00000000008BE000-memory.dmp

    Filesize

    440KB

  • memory/2892-3-0x00000000006B0000-0x00000000006EC000-memory.dmp

    Filesize

    240KB