Managed XDR

desktop.zip (XWorm) — malware analysis report

File info

Filename
desktop.zip
File type
Zip archive data, at least v2.0 to extract
File size
33.5 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
c16589f67403a94bc447252e5d5aad7d40424649
SHA256
4ce446caa1c8f301182750837210bae8b7e7db732f41e3711bf888111e33a56c
MD5
f0c0f7312e48a57b44e29fe4f33f552c

Malwares

  • XWorm

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1047 has_wmi: Executes one or several WMI requests
T1059 nsis_suspicious_filenames: Nsis contains files with suspicious names

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 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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1027.002 nsis_archive: One of the packages is NSIS archive
T1027.002 nsis_suspicious_filenames: Nsis contains files with suspicious names
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
T1070 stealth_window: A process created a hidden window
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list

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_idletime: Detects Windows Idle Time to determine the uptime
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_network_adapters: Checks NIC addresses
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)
T1115 set_clipboard_data: Sets data to clipboard

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
keylogger_sendsdata_telegram: Keylogger logs keystrokes and sends intercepted data via Telegram
creates_exe: Creates executable files in the file system
critical_process: Makes the process critical to the system (the system shuts down when it's terminated)
copies_self: Creates a copy of itself
telegram_api: Telegram Messenger API is used
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
require_administrator: Requests administrator privileges
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
break_limit_exceeded: Warning: function calls limit has been exceeded
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
static_big_overlay: Executable file contains an enormously big overlay
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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