Analysis

  • max time kernel
    151s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 08:21

General

  • Target

    0cb35a862e7818f368651f39723a0c02.exe

  • Size

    805KB

  • MD5

    0cb35a862e7818f368651f39723a0c02

  • SHA1

    a60a740e37cd97dc27268785264f2b93f14dd209

  • SHA256

    beb4456979d76348d5c834ef1cbdea0b090ec1cc9631e25a23e3029c15ad210e

  • SHA512

    dcf8354abcc6cb9faea544cb5ecba9b79780a20499bc360582c0c1d4e698980aa7b892b354f1bef29ce1582ca42607748e4ba892ebe53809934a9394df0a2940

  • SSDEEP

    12288:l4aqF1r+oq2oEiLq5QfJ9dCeNKdJrXnbz6t7MZOkMFxqJ9cE/nZ6mtsA:Ir+79EQq58J6Vi7MrSxK9cIdsA

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

rolandlandson149.bounceme.net:1007

127.0.0.1:1007

Mutex

48099ca8-c1b4-49f3-9fe1-d8dfcbf66c09

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-13T20:58:05.824762936Z

  • 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

    1007

  • default_group

    sepTmAn

  • 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

    48099ca8-c1b4-49f3-9fe1-d8dfcbf66c09

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    rolandlandson149.bounceme.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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0cb35a862e7818f368651f39723a0c02.exe
    "C:\Users\Admin\AppData\Local\Temp\0cb35a862e7818f368651f39723a0c02.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\0cb35a862e7818f368651f39723a0c02.exe
      "C:\Users\Admin\AppData\Local\Temp\0cb35a862e7818f368651f39723a0c02.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:1060
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC8F.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1808
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp127A.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:744

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp127A.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • C:\Users\Admin\AppData\Local\Temp\tmpC8F.tmp

    Filesize

    1KB

    MD5

    b68584c5f4454489fcc0a40f83729fc5

    SHA1

    c953dfc691a952c25ce597ec86bd2587d05940f3

    SHA256

    05ba3e315101259096ae8c5bcd50674b9374060042f591d6bd6a3a91139158b3

    SHA512

    606c3a89f1eba0272aeaef5d72063d001b20aac07024eea3cd770202363944ed369bc6ae43071be4748c310970964a326424b21b5e503b8f202e4fa0c769bf18

  • memory/744-75-0x0000000000000000-mapping.dmp

  • memory/1060-66-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-69-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-79-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/1060-60-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-63-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1060-78-0x0000000000860000-0x000000000087E000-memory.dmp

    Filesize

    120KB

  • memory/1060-67-0x000000000041E792-mapping.dmp

  • memory/1060-77-0x00000000003D0000-0x00000000003DA000-memory.dmp

    Filesize

    40KB

  • memory/1060-71-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1808-73-0x0000000000000000-mapping.dmp

  • memory/1976-57-0x0000000001EA0000-0x0000000001EAC000-memory.dmp

    Filesize

    48KB

  • memory/1976-56-0x0000000000780000-0x0000000000796000-memory.dmp

    Filesize

    88KB

  • memory/1976-55-0x00000000762B1000-0x00000000762B3000-memory.dmp

    Filesize

    8KB

  • memory/1976-58-0x0000000005FC0000-0x0000000006054000-memory.dmp

    Filesize

    592KB

  • memory/1976-54-0x0000000000930000-0x0000000000A00000-memory.dmp

    Filesize

    832KB

  • memory/1976-59-0x0000000004EE0000-0x0000000004F1A000-memory.dmp

    Filesize

    232KB