Managed XDR

smtp_1.eml (Remcos) — отчёт о динамическом анализе вредоносного файла

Информация о файле

Имя файла
smtp_1.eml
Тип файла
RFC 822 mail, UTF-8 Unicode text, with very long lines, with CRLF line terminators
Размер файла
69 KB
Первое обнаружение
Последнее обнаружение

Окружение

w10/x64 en

Хеши

SHA1
fc8a651926b0e6fca417b716f4276017aac8fe65
SHA256
877dd9e5c5f6777b9da71e11a9d8dc4362401f7feb25f8ca888a18dd574e5936
MD5
bfeea4bf0548996251d02e39182e3f57

Вредоносное ПО

  • Remcos

Сигнатуры

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.004 compiles_code: Compiles VB.NET code
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Discovery

T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity

Command and Control

T1102.003 references_github: Contains links to cloud services of Github (potentially for malicious payload delivery)

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
suspicious_pdf: PDF file with suspicious content
create_process_failed: Could not start the process
pdf_page: Contains only one page
suspicious_process: Spawns a suspicious process
suspicious_pdf_link: PDF file with suspicious hyperlink or content
valid_authenticode: The digital signature has been verified
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
test_check_service: Starts services
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay

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