Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 06:35

General

  • Target

    feaace46c675374f394ee22a65282722_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    feaace46c675374f394ee22a65282722

  • SHA1

    0ce3bd8c14f4245380e845c90a0ea8201592afea

  • SHA256

    12a20684ea5e22d7a0ddd0b02ba1f059df10980506168872b41fcdd17fa1218b

  • SHA512

    9f2933d915da38c263b8036c50e491f64cc2699ab6767f4692023a265f7ec4eaf146ef0611d66390d8fb65b525f0f9515154e0a614b6adefaa5aa55128807b12

  • SSDEEP

    12288:hWpRxQwUfBSkkkkkkkkkkkkkkx9L+kIkkvkkkkkkkk7ZLAJici8ve+rV94d7NPOX:hWpgklI8Jici8BAXPO50

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.10:1990

Mutex

c6884a9e-749b-423b-a050-e781c3fd61b2

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.97.10

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-21T17:06:48.539113436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1990

  • default_group

    UZODOLLAR

  • 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

    c6884a9e-749b-423b-a050-e781c3fd61b2

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.97.10

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ArnpksHTejGWn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCEB4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2512
    • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
      "{path}"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2468
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD0F5.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCEB4.tmp

    Filesize

    1KB

    MD5

    df6e976d5324ca233c550329bd2f7814

    SHA1

    317d0a713fc8e4e6be9a0f39535dd691203b827f

    SHA256

    2b8c9bdfb64f1dc35edce6807cee4b1e792bde58193ef4af697038c03cf585f2

    SHA512

    a75d48fa48a25b988ea0e3b1fb03b9298d810e2fcb4637b602a7c7866d13c7c4e703d3d434b5db23321dc3e052eb0fd1d1a2629929a7621e2e3fb3110f1b5e70

  • C:\Users\Admin\AppData\Local\Temp\tmpD0F5.tmp

    Filesize

    1KB

    MD5

    88088abf21775e13f02b29d683c6b871

    SHA1

    04fdb71467383a8ba58c57d95e4ada19bc7a4695

    SHA256

    1cd7c16aead2c11b13c370c095077f069acbb776963ae35d2a629064ea3deb8b

    SHA512

    67c5945d37e0f8d920d7d8855fce87309efff5658b47624342bf557aa59e1e33a09c4fe20a8b1c10b9107a8b598fde5de76f5b16e914138998ea6d8583c33c0c

  • memory/2468-27-0x0000000074240000-0x000000007492E000-memory.dmp

    Filesize

    6.9MB

  • memory/2468-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2468-36-0x0000000074240000-0x000000007492E000-memory.dmp

    Filesize

    6.9MB

  • memory/2468-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-34-0x0000000000450000-0x000000000046E000-memory.dmp

    Filesize

    120KB

  • memory/2468-33-0x0000000000440000-0x000000000044A000-memory.dmp

    Filesize

    40KB

  • memory/2468-26-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-37-0x0000000000660000-0x00000000006A0000-memory.dmp

    Filesize

    256KB

  • memory/2468-35-0x00000000004B0000-0x00000000004BA000-memory.dmp

    Filesize

    40KB

  • memory/2468-28-0x0000000000660000-0x00000000006A0000-memory.dmp

    Filesize

    256KB

  • memory/2468-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2468-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2944-2-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

    Filesize

    256KB

  • memory/2944-0-0x0000000001270000-0x0000000001380000-memory.dmp

    Filesize

    1.1MB

  • memory/2944-24-0x00000000742C0000-0x00000000749AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-1-0x00000000742C0000-0x00000000749AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-3-0x0000000000590000-0x00000000005A4000-memory.dmp

    Filesize

    80KB

  • memory/2944-7-0x00000000007C0000-0x00000000007FA000-memory.dmp

    Filesize

    232KB

  • memory/2944-6-0x00000000011D0000-0x000000000125C000-memory.dmp

    Filesize

    560KB

  • memory/2944-5-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

    Filesize

    256KB

  • memory/2944-4-0x00000000742C0000-0x00000000749AE000-memory.dmp

    Filesize

    6.9MB