Managed XDR

backup-message-172.16....0.182_9045-5301706.eml (XWorm) — malware analysis report

File info

Filename
backup-message-172.16.20.182_9045-5301706.eml
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
109.4 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
ae6e19ec1a17cfeaaf6ca676371ad6eb110274f9
SHA256
6edff84650748f4a419d144882a934bce017e2d25f8d7e7bbfb1a4d953b7704c
MD5
5c7fad9e955851a4cd8302252d1d6fdb

Malwares

  • XWorm

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1059.001 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests
T1059.003 suspicious_batch: Suspicious batch

Persistence

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

Privilege Escalation

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

T1036 copies_utilities: Copies system utility with different name
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.001 antivm_queries_computername: Retrieves the computer name
T1027 many_env_vars: An extensive number of environment variables has been created (possible sign of obfuscation)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name

Exfiltration

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

Other

suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
ps_ep_changed: Changes Powershell execution policy
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
yara_rules: Static rules

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