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 18:16:08 2026, atime=Mon Nov 25 16:20:24 2024, length=289792, window=hidenormalshowminimized
File size
1.3 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
f3d2097dd2f66f06b15d383f66a65b600e1b15b1
SHA256
4370bffbbea579f9b2610fa31470bcdd39d7845eef339e877c06a8e722b760f3
MD5
f6f3f391e5484f5b045c75f043c07099

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
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1218 suspicious_cmdline: Executes a suspicious command
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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
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
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
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
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Other

suricata_alert: Malicious traffic detected
certutil_download: Download file using certutil
creates_in_windows: Creates files in the Windows directory
network_bind: Starts servers listening at 127.0.0.1:0, None
creates_exe: Creates executable files in the file system
creates_doc: Creates (office) documents in the file system
executes_dropped_exe: Executes dropped exe files
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
writes_data: Writes big amount of data to disk
yara_rules: Static rules