Managed XDR

aa.lnk — malware analysis report

File info

Filename
aa.lnk
File type
MS Windows shortcut, Item id list present, Has Description string, Has command line arguments, Icon number=0, ctime=Mon Jan 1 00:00:00 1601, mtime=Mon Jan 1 00:00:00 1601, atime=Mon Jan 1 00:00:00 1601, length=0, window=hide
File size
30 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
6c36a03732e32b2bfb20b9a1c065b3c8f1758762
SHA256
211d8e8632dc5dd874eee0e6b963269046db05e2b3d84f74c04c5a22b2fd7932
MD5
989f7f63c198dd56b833cd33b10374a9

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1204 suspicious_lnk: LNK file with suspicious content
T1059.001 suspicious_process: Spawns a suspicious process

Privilege Escalation

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

T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1216 suspicious_syncappvpublishingserver: Creates suspicious SyncAppvPublishingServer process
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
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

T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)

Other

no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
yara_rules: Static rules