Managed XDR

119.252.155.74_1743579...3.13300.pro-155-74.eml (Remcos) — malware analysis report

File info

Filename
119.252.155.74_1743579201.s.3017753.13300.pro-155-74.eml
File type
SMTP mail, UTF-8 Unicode text, with very long lines
File size
2.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
524191b1dd66198c54ebae0f918d38bd9652d832
SHA256
b44e736e6b89bc61d708248854a7f33e2c0ef1152a8043324ae027ea9f87e256
MD5
6d8683266063dde7df8ac2dd0a993727

Malwares

  • Remcos

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1204.002 mimics_extension: Attempts to mimic the file extension
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1218 suspicious_cmdline: Executes a suspicious command
T1036 copies_utilities: Copies and runs system utility with different name
T1036 mimics_extension: Attempts to mimic the file extension
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 dep_disable: Disables DEP
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1480 system_default_lang_id_present: Checks the system language

Credential Access

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

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1016.001 system_network_configuration_discovery: System network configuration discovery detected

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
copies_self: Creates a copy of itself
dbatloader_behaviour: DBatLoader/ModiLoader behaviour
create_process_failed: Could not start the process
dead_host: Connects to IP addresses that do not respond to requests
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
enables_execute_access_on_stack: Enable execution access on stack

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