Analysis

  • max time kernel
    138s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 05:50

General

  • Target

    f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe

  • Size

    681KB

  • MD5

    b1d986e9c155fd11d3a1d2e01c9783cd

  • SHA1

    7f1b1be16e8eab4573e7828611a54f69c59d1f22

  • SHA256

    f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b

  • SHA512

    e7f22f880c6ae38c23b2ed0852fbe06f2d6e26f63d4c4b05c77aad88105d4794f5ea66c5926fd1989e97c83b464725d0d16df158deb6b9395db8ab6aabea7a84

  • SSDEEP

    12288:jrmtiK5oBG9q9jEbCREZ+gKfvuZIOIy20soND6jM4ZZFDkhQwC:jr+FoBG8eKfWWusoFSZZFD

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kengroup.publicvm.com:5577

Mutex

2d946f88-95e7-4ef9-bf22-b17b601a3a0a

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-02T11:12:00.603845836Z

  • 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

    5577

  • default_group

    Default

  • 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

    2d946f88-95e7-4ef9-bf22-b17b601a3a0a

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kengroup.publicvm.com

  • 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.

  • Nanocore family
  • 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
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 3 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 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
    "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uWyhyrvNHzsdDV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA850.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2924
    • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
      "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpABE9.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2728
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpACD4.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpABE9.tmp

    Filesize

    1KB

    MD5

    9f6194f08eb2ffd977d9ef9b5a2e9e59

    SHA1

    cf08a32c622093cdccc20e00a5604f3f6cfa79b1

    SHA256

    a0b56f02b152ed9efb4b549007062cb1813eca3da4e6411dac6af470e578dc25

    SHA512

    936d8ef644daf981b5e7b6eeee3e77e9302de457c1b6c3d7e007488602e7c77593bd6445507e8b8f01aa840142253d18bfd18e97e5b599d2f5458839335bb736

  • C:\Users\Admin\AppData\Local\Temp\tmpACD4.tmp

    Filesize

    1KB

    MD5

    bbb0d424bb7cb3b0e6aeb68cf82b8f5f

    SHA1

    7e95dcd21a27ee53e5c23ed5a163df56a43d572a

    SHA256

    08d6bee474edf0151a0d8ff942ba9e6a1efe069585c63477abd1c7bd8046e130

    SHA512

    0dc790a415f9717f6e7633c1d5f2749a2eca5582c5bbe114119c3ddba6d4e4d0df48029622e2fe07f94d8ae97c334b88691b7721da50ada261449769ae31d466

  • memory/2488-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2488-1-0x0000000001340000-0x00000000013F0000-memory.dmp

    Filesize

    704KB

  • memory/2488-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2488-3-0x0000000000520000-0x0000000000542000-memory.dmp

    Filesize

    136KB

  • memory/2488-4-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2488-5-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2488-6-0x0000000005530000-0x00000000055B4000-memory.dmp

    Filesize

    528KB

  • memory/2488-7-0x0000000000D20000-0x0000000000D70000-memory.dmp

    Filesize

    320KB

  • memory/2488-28-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-29-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-27-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2788-24-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-26-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2788-37-0x00000000004B0000-0x00000000004BA000-memory.dmp

    Filesize

    40KB

  • memory/2788-38-0x0000000000540000-0x000000000055E000-memory.dmp

    Filesize

    120KB

  • memory/2788-39-0x0000000000700000-0x000000000070A000-memory.dmp

    Filesize

    40KB

  • memory/2788-40-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2788-41-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB