Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 02:06

General

  • Target

    350d5e7320be3cf579bf1afacdbb46c0N.exe

  • Size

    506KB

  • MD5

    350d5e7320be3cf579bf1afacdbb46c0

  • SHA1

    f7220fb639e1c780f6ea23b1d657964f22bcf49a

  • SHA256

    f65d1cded5374ab70cfb0f316f045bc01a0f7dba4cb1cb1edf19a923282b525d

  • SHA512

    82d08ec44f4d8153ccdd42996604cf2ceab26c853d1a0b1a87257710b6ce115f9bde9dbd3ad93e54bed2f6337872fd877db994050926b0ff315f2bb7fa9ffdde

  • SSDEEP

    12288:0zQFwN0QMq3ZyMliWHt3hewrmrvTKdnMgmuCy:+QFmN3ZhlPt3hewyTK

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

savagesquad.ooguy.com:5314

Mutex

ffbf0a1f-4996-4697-ad52-3b9f73eda21c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2019-07-07T02:55:03.718306736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5314

  • default_group

    FUD

  • 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

    ffbf0a1f-4996-4697-ad52-3b9f73eda21c

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    savagesquad.ooguy.com

  • 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.

  • 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\350d5e7320be3cf579bf1afacdbb46c0N.exe
    "C:\Users\Admin\AppData\Local\Temp\350d5e7320be3cf579bf1afacdbb46c0N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VsRwbjnFmPB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC19A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2892
    • C:\Users\Admin\AppData\Local\Temp\350d5e7320be3cf579bf1afacdbb46c0N.exe
      "C:\Users\Admin\AppData\Local\Temp\350d5e7320be3cf579bf1afacdbb46c0N.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC19A.tmp

    Filesize

    1KB

    MD5

    09a669719a8aef5a1830387b41feaaba

    SHA1

    dcae3f4a7d37dd475c248fed96c32a3b18684b01

    SHA256

    122d53a5f99860ab687e68bf5c9e4be1d3e0f06307a1157f214f4749e6f2f360

    SHA512

    a0eba5e54e8a16bb1ad012475650752dbd3cda12a16d6067d66fac214c39d7bbd510c57788512a303877dbe9573bbb5a13cac23cfae660010de3c872671adaf9

  • memory/1904-0-0x0000000074E21000-0x0000000074E22000-memory.dmp

    Filesize

    4KB

  • memory/1904-1-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-2-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-3-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-26-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2652-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2652-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-25-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2652-24-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2652-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2652-28-0x0000000074E20000-0x00000000753CB000-memory.dmp

    Filesize

    5.7MB