Managed XDR

way-o-r-yss.exe (XWorm) — malware analysis report

File info

Filename
way-o-r-yss.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
912 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
dcb4c42fc4b74ad1a44075c185d41bd911704196
SHA256
3b6447b7c81bda3cda6675822de9918ceab89c4b1bdc635b15e978b4f2110c02
MD5
51f370301164d8811682a26f355de264

Malwares

  • XWorm

Signatures

Execution

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1047 has_wmi: Executes one or several WMI requests

Persistence

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

Privilege Escalation

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

Defense Evasion

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1480 system_default_lang_id_present: Checks the system language
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
T1027.002 packer_vb: The executable file is packed using VB
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1070 stealth_window: A process created a hidden window
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1082 has_wmi: Executes one or several WMI requests
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
critical_process: Makes the process critical to the system (the system shuts down when it's terminated)
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call

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