Managed XDR

1-1vbjiu-0006h8-26.eml (XWorm) — malware analysis report

File info

Filename
1-1vbjiu-0006h8-26.eml
File type
RFC 822 mail, ASCII text
File size
27.1 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
a97a9c8a43cab69a78d083eab24e40173bf1b563
SHA256
7d108be9b9749bc7aaf886287406b11a45d28ae7184cd5bb62e14c0fe8926e53
MD5
6b541265b8699d9c9571967374e4463f

Malwares

  • XWorm

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_batch: Suspicious batch

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
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

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1497.001 antivm_disk_size: Checks the amount of free disk space
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
T1055 injection_failed: The attempt to inject into a process has failed

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
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_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests

Exfiltration

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

Other

yara_rules: Static rules
ce_info: XWorm Configuration Data found
networkdyndns_checkip: Connects to a Dynamic DNS domain
dead_host: Connects to IP addresses that do not respond to requests
network_powershell: Powershell process network connection detected
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
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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