Managed XDR

systemupdate.lnk — malware analysis report

File info

Filename
systemupdate.lnk
File type
MS Windows shortcut, Item id list present, Points to a file or directory, Has Description string, Has Relative path, Has command line arguments, Archive, ctime=Sat Dec 7 09:08:34 2019, mtime=Fri Jul 31 19:27:39 2026, atime=Sat Dec 7 09:08:34 2019, length=289792, window=hide
File size
2.9 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
e312d0fff416e3ffeadabcb21cc981dfee3b6133
SHA256
e4ae9ac8f8b0732897f17b04004dcfd12a441aa7a83c5e5267f1fbb2db4926f6
MD5
4fabdb8e44dacce855dd6524b984a1ad

Signatures

Execution

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

Defense Evasion

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
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

T1082 recon_systeminfo: Collects system information (ipconfig, netstat, systeminfo, net)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
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

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

network_bind: Starts servers listening at None
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
yara_rules: Static rules