Analysis

  • max time kernel
    64s
  • max time network
    151s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-08-2022 10:21

General

  • Target

    a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe

  • Size

    804KB

  • MD5

    7a8a85429a9cf780540c2d1212637fd9

  • SHA1

    121ddcf18e6fa0b576412bf53e25b5aeccbedd56

  • SHA256

    a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560

  • SHA512

    87f1a3d5f93302d1456715e7bc80f0590a2cc29e4a5b46fb35b362139d0df842723cf52c4c3f55735e222fceb3e377453e0c36494b26b1687681eede492c8a25

  • SSDEEP

    24576:uCQZ5HekjAWI1jfjk5F5mhfnzLWdenh2D:y5HLbIJoZmhf2yh2

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

louinc928.gotdns.ch:1492

127.0.0.1:1492

Mutex

6f711de5-f3f4-4062-bab9-dce39dc4e0f9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-05-22T02:15:25.592931736Z

  • 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

    1492

  • default_group

    AUG

  • 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

    6f711de5-f3f4-4062-bab9-dce39dc4e0f9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    louinc928.gotdns.ch

  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe
    "C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe
      "C:\Users\Admin\AppData\Local\Temp\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.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:3312
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7494.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4984
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp75DD.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a8bda5751a1abcf26082042d8cd7e4157a692547d909ccbe9eb4a6a3eb50e560.exe.log

    Filesize

    1KB

    MD5

    12557ab909651a6f99d3503d614d3562

    SHA1

    b86745768059a514bea3a438e1e96086af463246

    SHA256

    9589c869703e95d40d5870c60f66d8460f7914e9fe8dd579533c84148112babd

    SHA512

    10cdb2fa7cf054af937b4aeddfe16fe755d6b09db5a51f7052adbf472b4b435e16c141f3712762f3b67f990c3efcfa47659576988e321214c747d6cd98e75521

  • C:\Users\Admin\AppData\Local\Temp\tmp7494.tmp

    Filesize

    1KB

    MD5

    4290521e9d01266eebd058680c93a62e

    SHA1

    48db9bdb7967826aafbfcf74b267a656a30cd99b

    SHA256

    9df91ab404d33bdbf5245e393f36a2fadc174a234209041b787cd29a480588ee

    SHA512

    d9b7142bac21840e570a239e797d9f0b67fac9989806520d435c41485b97d905d4023de7789380f9db748aebcf681060c0eeb171053199a6a82e6e410869e286

  • C:\Users\Admin\AppData\Local\Temp\tmp75DD.tmp

    Filesize

    1KB

    MD5

    4b7ef560289c0f62d0baf6f14f48a57a

    SHA1

    8331acb90dde588aa3196919f6e847f398fd06d1

    SHA256

    062844155306130d6fafc4fe10ac9e5ddd2ed462532b729c50cdc979c0d83207

    SHA512

    ecaa27c4b703d95f9f9b37d8c339982970482e7dab968c2010e0aa644bbfa31973111aafb827565af30c423d1d14e4ff997ec149614e713ff7ef3456894d02d8

  • memory/2160-120-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-121-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-122-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-124-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-123-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-125-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-126-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-127-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-128-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-129-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-130-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-131-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-132-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-133-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-134-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-135-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-136-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-137-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-138-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-139-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-140-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-141-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-142-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-143-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-144-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-145-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-146-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-147-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-148-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-149-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-150-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-151-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-152-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-153-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-154-0x00000000001D0000-0x000000000029E000-memory.dmp

    Filesize

    824KB

  • memory/2160-155-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-156-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-157-0x00000000073C0000-0x00000000078BE000-memory.dmp

    Filesize

    5.0MB

  • memory/2160-158-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-159-0x0000000006FA0000-0x0000000007032000-memory.dmp

    Filesize

    584KB

  • memory/2160-160-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-161-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-162-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-163-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-164-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-165-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-166-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-167-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-168-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-169-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-170-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-171-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-172-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-173-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-174-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-175-0x0000000006F90000-0x0000000006F9A000-memory.dmp

    Filesize

    40KB

  • memory/2160-176-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-177-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-178-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-179-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-180-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-181-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-182-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-183-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-184-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-185-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-186-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-187-0x0000000077610000-0x000000007779E000-memory.dmp

    Filesize

    1.6MB

  • memory/2160-197-0x000000000AC70000-0x000000000AC88000-memory.dmp

    Filesize

    96KB

  • memory/2160-198-0x0000000004A00000-0x0000000004A0C000-memory.dmp

    Filesize

    48KB

  • memory/2160-199-0x000000000AD30000-0x000000000ADCA000-memory.dmp

    Filesize

    616KB

  • memory/2160-200-0x000000000AE70000-0x000000000AF0C000-memory.dmp

    Filesize

    624KB

  • memory/2160-201-0x000000000AF70000-0x000000000AFD6000-memory.dmp

    Filesize

    408KB

  • memory/2160-202-0x000000000ADD0000-0x000000000AE10000-memory.dmp

    Filesize

    256KB

  • memory/3312-204-0x000000000041E792-mapping.dmp

  • memory/3312-239-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3312-303-0x0000000005510000-0x000000000551A000-memory.dmp

    Filesize

    40KB

  • memory/3312-304-0x0000000005520000-0x000000000553E000-memory.dmp

    Filesize

    120KB

  • memory/3312-306-0x0000000006350000-0x000000000635A000-memory.dmp

    Filesize

    40KB

  • memory/3312-313-0x0000000006360000-0x0000000006372000-memory.dmp

    Filesize

    72KB

  • memory/3312-314-0x0000000006370000-0x000000000638A000-memory.dmp

    Filesize

    104KB

  • memory/3312-315-0x0000000006B00000-0x0000000006B0E000-memory.dmp

    Filesize

    56KB

  • memory/3312-316-0x0000000006B10000-0x0000000006B22000-memory.dmp

    Filesize

    72KB

  • memory/3312-317-0x0000000006B20000-0x0000000006B2E000-memory.dmp

    Filesize

    56KB

  • memory/3312-318-0x0000000006B30000-0x0000000006B3C000-memory.dmp

    Filesize

    48KB

  • memory/3312-319-0x0000000006B40000-0x0000000006B54000-memory.dmp

    Filesize

    80KB

  • memory/3312-320-0x0000000006B50000-0x0000000006B60000-memory.dmp

    Filesize

    64KB

  • memory/3312-321-0x0000000006B60000-0x0000000006B74000-memory.dmp

    Filesize

    80KB

  • memory/3312-322-0x0000000006B80000-0x0000000006B8E000-memory.dmp

    Filesize

    56KB

  • memory/3312-323-0x0000000006B90000-0x0000000006BBE000-memory.dmp

    Filesize

    184KB

  • memory/3312-324-0x0000000006BD0000-0x0000000006BE4000-memory.dmp

    Filesize

    80KB

  • memory/4068-280-0x0000000000000000-mapping.dmp

  • memory/4984-261-0x0000000000000000-mapping.dmp