Managed XDR

20250417_rating_75_99_fp_13.eml (CloudEyE, Remcos) — malware analysis report

File info

Filename
20250417_rating_75_99_fp_13.eml
File type
ASCII text, with very long lines
File size
891.2 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
907bd980c3915b78fc51cc2cace8aec7f143d64f
SHA256
fddca2a39394c6e867da898e319608d03203f1b7d94c31e5e1cbc794945130db
MD5
f7aa56985141108857bb7ecb353f7237

Malwares

  • CloudEyE
  • Remcos

Signatures

Execution

T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks
T1059 nsis_suspicious_filenames: Nsis contains files with suspicious names

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.012 injection_runpe: Injects code into another process
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1045 guloader_behaviour2: Cloudeye/GuLoader specific behaviour has been detected
T1055.012 injection_runpe: Injects code into another process
T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1027.002 guloader_behaviour: Cloudeye/GuLoader specific behaviour has been detected
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 dep_disable: Disables DEP
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1480 system_default_lang_id_present: Checks the system language
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
T1027.002 nsis_archive: One of the packages is NSIS archive
T1027.002 nsis_suspicious_filenames: Nsis contains files with suspicious names

Credential Access

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

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread

Command and Control

T1102.003 cloud_google: Connects to cloud services of Google (potentially for malicious payload delivery)
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
modifies_certs: Attempts to generate or modify system certificates
copies_self: Creates a copy of itself
executes_dropped_exe: Executes dropped exe files
unnamed_region_exception_handler: Creates an exception handler in an unnamed region
unexpected_exception: Unexpected exception
unsigned_driver_drop: Sample is not signed and drops a device driver
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
creates_exe: Creates executable files in the file system
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
pe_overlay: PE file contains overlay
nsis_mouse_movement: NSIS tracks mouse movement

Related reports

Managed XDR