Managed XDR

rfq-qt46178-s-q-wf.won...4e0f4c27eb1ff6d331.eml (Remcos) — malware analysis report

File info

Filename
rfq-qt46178-s-q-wf.wong-s.nivas-sunglobal.com-2024-10-16-3ef1d6d877d0d5c44e18a204abf904abbaf20ec2470e944e0f4c27eb1ff6d331.eml
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
1.2 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
85909d240dc049b1772c3c12aec5167e381819fc
SHA256
9df6e4b1071a0dafcdf91b21fd6a5da5c9be230862560fc9f3047fa92db28db9
MD5
e1dbbacba27cc860058dcb1821fb1b8e

Malwares

  • Remcos

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.001 suspicious_powershell: Creates suspicious powershell process

Persistence

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

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
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
T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1564.001 stealth_file: Creates hidden or system files
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1055 injection_failed: The attempt to inject into a process has failed
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
steganographic_png: Possible malicious steganographic PNG
ce_info: Remcos Configuration Data found
creates_exe: Creates executable files in the file system
unpacker_wrong_base: Possibly, an error occured in the file unpacker
copies_self: Creates a copy of itself
executes_dropped_exe: Executes dropped exe files
creates_suspended_process: Creates suspended process
message_box: Displays a message
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
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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