Managed XDR

830133597-estructuras-...-a_b-03-830133597-.eml (XWorm) — malware analysis report

File info

Filename
830133597-estructuras-en-finanzas-sa-fev092177-a_b-03-830133597-.eml
File type
ASCII text, with very long lines, with CRLF line terminators
File size
20.2 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
9597518b019f9ce1fd9e416bf12bb19f0d5cf272
SHA256
c924c9fbb7245800ccf02b987e755a786b666d6236d3c79667bef37fc340c36a
MD5
4b220a21abeff5f9e9d1e4f7cd4b51f3

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
T1059.003 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.003 suspicious_batch: Suspicious batch
T1204.002 mimics_extension: Attempts to mimic the file extension

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

T1497 debugs_self: Creates a process and debugs it
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1036 mimics_extension: Attempts to mimic the file extension
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
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 debugs_self: Creates a process and debugs it
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
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
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
networkdyndns_checkip: Connects to a Dynamic DNS domain
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

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