Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 11:45

General

  • Target

    9e1109f17a8fc0e2fb3039c371a96de8_JaffaCakes118.ps1

  • Size

    2.3MB

  • MD5

    9e1109f17a8fc0e2fb3039c371a96de8

  • SHA1

    03169d81d381d05b7312ddfca7b3a6e8441c9439

  • SHA256

    da5b1aebdc5aae0e54daef1f80d5e853b2b470fa9225a7d899f80f970c45e904

  • SHA512

    30d89d02a3bedb5d7fb534a8bdce0df0373bdb5d2d6484e2426d4bcbf3475ae03e5987a34fe81d54d5520d66733b46f4fd328d63d0f4337317e45a842c9a1dd1

  • SSDEEP

    49152:W7cQuKURwwTUboxB9HjYUaFrIxfjEg478i6HL:3

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.31.239:2100

127.0.0.1:2100

Mutex

114e45fb-ecea-4d0d-8c58-054f50d53d55

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-03-01T08:38:16.974793536Z

  • 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

    2100

  • default_group

    NEW LEVEL

  • 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

    114e45fb-ecea-4d0d-8c58-054f50d53d55

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.244.31.239

  • 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.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\9e1109f17a8fc0e2fb3039c371a96de8_JaffaCakes118.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4952
    • C:\Users\Public\smzi.exe
      "C:\Users\Public\smzi.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4504
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2232
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6A91.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:548
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6AFF.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:2052

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ejmxihgb.pcl.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp6A91.tmp
    Filesize

    1KB

    MD5

    c6f0625bf4c1cdfb699980c9243d3b22

    SHA1

    43de1fe580576935516327f17b5da0c656c72851

    SHA256

    8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

    SHA512

    9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

  • C:\Users\Admin\AppData\Local\Temp\tmp6AFF.tmp
    Filesize

    1KB

    MD5

    5fea24e883e06e4df6d240dc72abf2c5

    SHA1

    d778bf0f436141e02df4b421e8188abdcc9a84a4

    SHA256

    e858982f4ab3c74f7a8903eea18c0f73501a77273ae38b54d5c9dec997e79a66

    SHA512

    15afc2ffbbee14d28a5ff8dc8285d01c942147aada36fb33e31045a4e998769b51738bebe199bcad3462f918b535845a893aa2f80c84b9c795cd1fee4a327924

  • C:\Users\Public\smzi.exe
    Filesize

    1.6MB

    MD5

    d9de0dd528e50e98d6b6740893e5747f

    SHA1

    07139a85b6928a2375acbbe5c9edc2c193e317b6

    SHA256

    b6ffe3f77d08028ec5f85b4485af07b63a5905350dc7e963ae485760c804e7cc

    SHA512

    2d22f65c45ae1ac2a644b0f712b600f503313e1aff2af099705cb50c668f2279431cd1ab07e1838a476d96af59be2e3daf45ae3923640b15412357925491fb58

  • memory/2232-98-0x0000000070612000-0x0000000070613000-memory.dmp
    Filesize

    4KB

  • memory/2232-112-0x0000000070610000-0x0000000070BC1000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-111-0x0000000070612000-0x0000000070613000-memory.dmp
    Filesize

    4KB

  • memory/2232-101-0x0000000070610000-0x0000000070BC1000-memory.dmp
    Filesize

    5.7MB

  • memory/2232-99-0x0000000070610000-0x0000000070BC1000-memory.dmp
    Filesize

    5.7MB

  • memory/4504-65-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-23-0x0000000074920000-0x00000000750D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4504-28-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-39-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-91-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-96-0x0000000074920000-0x00000000750D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4504-95-0x0000000005C30000-0x0000000005C68000-memory.dmp
    Filesize

    224KB

  • memory/4504-94-0x0000000005CC0000-0x0000000005D5C000-memory.dmp
    Filesize

    624KB

  • memory/4504-90-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-87-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-25-0x0000000005110000-0x0000000005138000-memory.dmp
    Filesize

    160KB

  • memory/4504-85-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-83-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-81-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-79-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-77-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-75-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-73-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-71-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-69-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-67-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-24-0x0000000005090000-0x00000000050FC000-memory.dmp
    Filesize

    432KB

  • memory/4504-64-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-61-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-59-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-26-0x00000000051D0000-0x0000000005236000-memory.dmp
    Filesize

    408KB

  • memory/4504-57-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-55-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-54-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-51-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-50-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-47-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-45-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-43-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-41-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-38-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-35-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-33-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-31-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-29-0x0000000005110000-0x0000000005131000-memory.dmp
    Filesize

    132KB

  • memory/4504-20-0x000000007492E000-0x000000007492F000-memory.dmp
    Filesize

    4KB

  • memory/4504-21-0x00000000004D0000-0x0000000000676000-memory.dmp
    Filesize

    1.6MB

  • memory/4504-22-0x00000000054A0000-0x00000000059CC000-memory.dmp
    Filesize

    5.2MB

  • memory/4504-108-0x000000007492E000-0x000000007492F000-memory.dmp
    Filesize

    4KB

  • memory/4504-109-0x0000000074920000-0x00000000750D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4504-110-0x0000000074920000-0x00000000750D0000-memory.dmp
    Filesize

    7.7MB

  • memory/4952-0-0x00007FF9A8013000-0x00007FF9A8015000-memory.dmp
    Filesize

    8KB

  • memory/4952-10-0x00000222C22B0000-0x00000222C22D2000-memory.dmp
    Filesize

    136KB

  • memory/4952-11-0x00007FF9A8010000-0x00007FF9A8AD1000-memory.dmp
    Filesize

    10.8MB

  • memory/4952-12-0x00007FF9A8010000-0x00007FF9A8AD1000-memory.dmp
    Filesize

    10.8MB

  • memory/4952-19-0x00007FF9A8010000-0x00007FF9A8AD1000-memory.dmp
    Filesize

    10.8MB