Analysis

  • max time kernel
    241s
  • max time network
    340s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 15:45

General

  • Target

    70ffe72e6292909f6abe3dff77e9678e.exe

  • Size

    965KB

  • MD5

    70ffe72e6292909f6abe3dff77e9678e

  • SHA1

    ff0973eda1737d251c6e0ee298c37a6e133b5cbf

  • SHA256

    075a3133c28b8d249aa9993fa917059708ae537f3518f61065db553d325c4aa7

  • SHA512

    06c4a24d68c5f6aa161018f604babd36543dff53dbb8876a41b9207bcfdceeaec0f4252bbc629eaf1eaa6b60b97f42998dd17f1c112fac34e532c615c253c12f

  • SSDEEP

    24576:w0qQgCpPKBn11H636y6kuGx+TiwAAgEEY4:hLhu6367IATQp

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

127.0.0.1:1665

Mutex

54c43eb3-9a5e-48cf-bbb9-9a65e46643a1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-09-09T09:23:36.606577636Z

  • 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

    1665

  • default_group

    NOV282022

  • 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

    54c43eb3-9a5e-48cf-bbb9-9a65e46643a1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    tzitziklishop.ddns.net

  • 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.

  • 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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70ffe72e6292909f6abe3dff77e9678e.exe
    "C:\Users\Admin\AppData\Local\Temp\70ffe72e6292909f6abe3dff77e9678e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:520
    • C:\Users\Admin\AppData\Local\Temp\70ffe72e6292909f6abe3dff77e9678e.exe
      "C:\Users\Admin\AppData\Local\Temp\70ffe72e6292909f6abe3dff77e9678e.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD03B.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:924
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD9A.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1064

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD03B.tmp
    Filesize

    1KB

    MD5

    ce33bea88ce57f8ee7ba12068a258d29

    SHA1

    bd3f7808813b86cc40a2ad3252788f9b385d3b34

    SHA256

    ffe44624099058d30e876b3061e27cdd7bfcfc8bf444e2d901529f70de3e966f

    SHA512

    35f1776f168d75d1c77bbce9e6de845021f40deac55d4b41a118a30aded20b3d9a5838a5960dfeeb9d669eb9064f188bd9e8882c3e87d24ae7645846ba339e1e

  • memory/520-55-0x0000000074E61000-0x0000000074E63000-memory.dmp
    Filesize

    8KB

  • memory/520-56-0x0000000000450000-0x0000000000466000-memory.dmp
    Filesize

    88KB

  • memory/520-57-0x00000000008D0000-0x00000000008DE000-memory.dmp
    Filesize

    56KB

  • memory/520-58-0x0000000005F80000-0x0000000006014000-memory.dmp
    Filesize

    592KB

  • memory/520-59-0x0000000000EA0000-0x0000000000EFA000-memory.dmp
    Filesize

    360KB

  • memory/520-54-0x00000000010F0000-0x00000000011E8000-memory.dmp
    Filesize

    992KB

  • memory/872-83-0x0000000004600000-0x000000000460E000-memory.dmp
    Filesize

    56KB

  • memory/872-85-0x00000000046A0000-0x00000000046B4000-memory.dmp
    Filesize

    80KB

  • memory/872-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-69-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-67-0x000000000041E792-mapping.dmp
  • memory/872-71-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-90-0x0000000004980000-0x0000000004994000-memory.dmp
    Filesize

    80KB

  • memory/872-61-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-89-0x0000000004950000-0x000000000497E000-memory.dmp
    Filesize

    184KB

  • memory/872-76-0x0000000000920000-0x000000000092A000-memory.dmp
    Filesize

    40KB

  • memory/872-77-0x0000000000930000-0x000000000094E000-memory.dmp
    Filesize

    120KB

  • memory/872-78-0x0000000000760000-0x000000000076A000-memory.dmp
    Filesize

    40KB

  • memory/872-79-0x0000000000B20000-0x0000000000B32000-memory.dmp
    Filesize

    72KB

  • memory/872-80-0x0000000000C60000-0x0000000000C7A000-memory.dmp
    Filesize

    104KB

  • memory/872-81-0x0000000000C80000-0x0000000000C8E000-memory.dmp
    Filesize

    56KB

  • memory/872-82-0x00000000045F0000-0x0000000004602000-memory.dmp
    Filesize

    72KB

  • memory/872-60-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-84-0x0000000004690000-0x000000000469C000-memory.dmp
    Filesize

    48KB

  • memory/872-63-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/872-86-0x00000000046B0000-0x00000000046C0000-memory.dmp
    Filesize

    64KB

  • memory/872-87-0x00000000046C0000-0x00000000046D4000-memory.dmp
    Filesize

    80KB

  • memory/872-88-0x0000000004710000-0x000000000471E000-memory.dmp
    Filesize

    56KB

  • memory/924-73-0x0000000000000000-mapping.dmp
  • memory/1064-75-0x0000000000000000-mapping.dmp