Managed XDR

accounts.xls (ZLoader) — отчёт о динамическом анализе вредоносного файла

Информация о файле

Имя файла
accounts.xls
Тип файла
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.3, Code page: 1252, Last Saved By: Administrator, Name of Creating Application: Microsoft Excel, Create Time/Date: Tue Jun 11 05:25:17 2019, Last Saved Time/Date: Tue Jun 11 05:25:19 2019, Security: 0
Размер файла
67 KB
Первое обнаружение
Последнее обнаружение

Окружение

win7/x86 en

Хеши

SHA1
761686609df5a34a778172d461d6a2b90ac714a8
SHA256
79eaa322ca479f72095c1b43b636cb7998a71aa3a9b4a2ef39f312a69a410f5e
MD5
7ee99b6a139273f1ba02613d5ca47001

Вредоносное ПО

  • ZLoader

Сигнатуры

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1559.001 com_exec: Execution of Win32_Process.Create COM Method
T1059.001 suspicious_process: Spawns a suspicious process
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1059.001 amsi_bypass_attempt: Attempts to bypass Microsoft AMSI protection in PowerShell
T1204.002 office_wmi_load: Microsoft Office loads WMI DLL files (WMI usage indicator in macroes)
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

Privilege Escalation

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1027 office_macros_hex_strings: Lines in hex found in document macro
T1497 debugs_self: Creates a process and debugs it
T1027.004 compiles_code: Compiles C# code
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497 debugs_self: Creates a process and debugs it
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
office_summary: The document contains suspicious metadata
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call

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