Managed XDR

ispr-advisory-march-2025.pdf.lnk — malware analysis report

File info

Filename
ispr-advisory-march-2025.pdf.lnk
File type
MS Windows shortcut, Item id list present, Has Description string, Has Relative path, Has command line arguments, Icon number=11, 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
1.4 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
1ef9ade3cf8bbfda23e57df470e449961552645e
SHA256
8c233e13a0bc27bce7555b9a89f63c0eadaa5c618fe7301eebd7a32e2bd79bcf
MD5
3e8aff5697a513a749869744ad0ce135

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1204 suspicious_lnk: LNK file with suspicious content
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1047 has_wmi: Executes one or several WMI requests
T1059.001 suspicious_process: Spawns a suspicious process

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
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
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
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
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization

Collection

T1560.001 cmdline_tar: Uses tar utility to compress or decompress data

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1105 cmdline_curl: Uses curl utility for network data transferring
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
multiple_useragents: Uses more than one unique User-Agent
opens_document: Opens office documents
creates_doc: Creates (office) documents in the file system
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
test_check_service: Starts services