Managed XDR

update.lnk — malware analysis report

File info

Filename
update.lnk
File type
MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has Working directory, Has command line arguments, Archive, ctime=Mon Nov 25 16:20:24 2024, mtime=Thu Jun 25 17:53:19 2026, atime=Mon Nov 25 16:20:24 2024, length=289792, window=hidenormalshowminimized
File size
2 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
b55aac1839a0b2d2d84f02e7b33913a0dc0ca094
SHA256
33871b71a2ea19740a6a650125dc6c68160ab9564200733df0505f1adc1a6b41
MD5
97d53701deb1ec1439d57647a9784cd1

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious PowerShell process
T1204 suspicious_lnk: LNK file with suspicious content
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.001 suspicious_process: Spawns a suspicious process
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Defense Evasion

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization

Command and Control

T1102.003 cloud_dropbox: Connects to cloud services of Dropbox (potentially for malicious payload delivery)
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

network_bind: Starts servers listening at None
network_powershell: PowerShell process network connection detected
creates_suspended_process: Creates suspended process
message_box: Displays a message
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
yara_rules: Static rules