Managed XDR

temp-116-.eml (XWorm) — malware analysis report

File info

Filename
temp-116-.eml
File type
RFC 822 mail, UTF-8 Unicode text, with CRLF line terminators
File size
72.3 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
1bc0a6f5f3d075be0870c9775caf90f73caa79e4
SHA256
58d3f811d7002021dd84ff2c25a7870547739c7c1b74211ba73bf06ecb75cf18
MD5
b448d5dbaa27194b15098b83b50e73c1

Malwares

  • XWorm

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1204.002 mimics_extension: Attempts to mimic the file extension
T1047 has_wmi: Executes one or several WMI requests
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_batch: Suspicious batch

Privilege Escalation

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 mimics_extension: Attempts to mimic the file extension
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1027 many_env_vars: An extensive number of environment variables has been created (possible sign of obfuscation)
T1497.001 antivm_queries_computername: Retrieves the computer name
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
T1082 has_wmi: Executes one or several WMI requests
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
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
no_graphical_activity: No graphic activity
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

Related reports