Analysis

  • max time kernel
    137s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10-10-2022 12:40

General

  • Target

    97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe

  • Size

    954KB

  • MD5

    bc5b523564157d055aeff745e8357393

  • SHA1

    f2c3d6a9cfde4bc57514aa0afd980090664d3264

  • SHA256

    97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef

  • SHA512

    fc8fb1f31ae04ea10da62a3ccc3b9d300899e084626a2a340724e01c1e6a229135a64346cb270622e002ee7a9626e90aab2f4b0bfac333cc6daf9b1d8e46eb9d

  • SSDEEP

    12288:8RaJ2uUBKAs84L7VT+N2+ai6olo1IZ+9DTFqStxX1u0IlBkKMm6Ex:QDc1+M+v6oKKZ2DIyXvIlBvx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

jasonbourne.bounceme.net:4032

127.0.0.1:4032

Mutex

9c6d4c8a-884b-4287-8ce0-7edf4a237b07

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-24T09:47:26.371156736Z

  • 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

    4032

  • default_group

    X File

  • 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

    9c6d4c8a-884b-4287-8ce0-7edf4a237b07

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    jasonbourne.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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe
    "C:\Users\Admin\AppData\Local\Temp\97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe
      "C:\Users\Admin\AppData\Local\Temp\97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UPNP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9191.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:5060
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UPNP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp93B5.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:5052

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\Microsoft\CLR_v4.0_32\UsageLogs\97593e02a62094f9d92ab699ebb286bfb8acdae17a90b746b57c1a1c6d953eef.exe.log
    Filesize

    1KB

    MD5

    12557ab909651a6f99d3503d614d3562

    SHA1

    b86745768059a514bea3a438e1e96086af463246

    SHA256

    9589c869703e95d40d5870c60f66d8460f7914e9fe8dd579533c84148112babd

    SHA512

    10cdb2fa7cf054af937b4aeddfe16fe755d6b09db5a51f7052adbf472b4b435e16c141f3712762f3b67f990c3efcfa47659576988e321214c747d6cd98e75521

  • C:\Users\Admin\AppData\Local\Temp\tmp9191.tmp
    Filesize

    1KB

    MD5

    006bbc2e40f1a6b8864266088b68c8df

    SHA1

    cea2b507e60bb914a549c51a216c2fb1ea1702b1

    SHA256

    9663982c598b4b7a750730dfbcc58809f0574897ce2da2a0b832e84d645c4c35

    SHA512

    9227bac12eb6d72a4b1449c48958b5691c08060469809445722d62978984357c9282676edb5019c5e809017abed1afbfe3c126d79c4da56adebeae0427029ed7

  • C:\Users\Admin\AppData\Local\Temp\tmp93B5.tmp
    Filesize

    1KB

    MD5

    4c832ec236838b76043c902806a7b4b5

    SHA1

    80ecc30c4e666f3ad15ef638e60896af6cdf608d

    SHA256

    b0d636f0610fc5fdf28fdcdf81312152a975ce3401dc5e46de9995ec86ee1833

    SHA512

    4654f509857c727a0eed3c767982018d72fc46bb480e5b43533d345d71fe0e401322af6ec200b9e62a40eaa94da96d192ffb3acaa656a9c148377745c111d838

  • memory/2208-120-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-121-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-122-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-123-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-124-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-125-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-126-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-127-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-128-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-129-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-130-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-131-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-132-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-133-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-134-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-135-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-136-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-137-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-138-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-139-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-140-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-141-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-142-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-143-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-144-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-145-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-146-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-147-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-148-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-149-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-150-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-151-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-152-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-153-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-154-0x00000000008E0000-0x00000000009D4000-memory.dmp
    Filesize

    976KB

  • memory/2208-155-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-156-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-157-0x00000000056E0000-0x0000000005BDE000-memory.dmp
    Filesize

    5.0MB

  • memory/2208-158-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-159-0x0000000005280000-0x0000000005312000-memory.dmp
    Filesize

    584KB

  • memory/2208-160-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-161-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-162-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-163-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-164-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-165-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-166-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-167-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-168-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-169-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-170-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-171-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-172-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-173-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-174-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-175-0x0000000005210000-0x000000000521A000-memory.dmp
    Filesize

    40KB

  • memory/2208-176-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-177-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-178-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-179-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-180-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-181-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-182-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-183-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-184-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2208-185-0x00000000056C0000-0x00000000056D8000-memory.dmp
    Filesize

    96KB

  • memory/2208-186-0x0000000008880000-0x000000000888C000-memory.dmp
    Filesize

    48KB

  • memory/2208-187-0x000000000B260000-0x000000000B2F4000-memory.dmp
    Filesize

    592KB

  • memory/2208-188-0x000000000B3B0000-0x000000000B44C000-memory.dmp
    Filesize

    624KB

  • memory/2208-189-0x000000000B4C0000-0x000000000B526000-memory.dmp
    Filesize

    408KB

  • memory/2208-190-0x000000000B360000-0x000000000B39A000-memory.dmp
    Filesize

    232KB

  • memory/2824-191-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/2824-192-0x000000000041E792-mapping.dmp
  • memory/2824-193-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2824-194-0x00000000771D0000-0x000000007735E000-memory.dmp
    Filesize

    1.6MB

  • memory/2824-290-0x0000000005040000-0x000000000504A000-memory.dmp
    Filesize

    40KB

  • memory/2824-291-0x0000000005180000-0x000000000519E000-memory.dmp
    Filesize

    120KB

  • memory/2824-293-0x00000000052C0000-0x00000000052CA000-memory.dmp
    Filesize

    40KB

  • memory/5052-267-0x0000000000000000-mapping.dmp
  • memory/5060-248-0x0000000000000000-mapping.dmp