Managed XDR

c-windows-office.lnk — malware analysis report

File info

Filename
c-windows-office.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=Sat Mar 16 02:36:23 2024, mtime=Sat Apr 6 12:47:08 2024, atime=Sat Mar 16 02:36:23 2024, length=455680, window=hide
File size
2.1 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
66e52c65d23bd7fd4baf37c689a593b93184ce46
SHA256
5d775d77aa2b39dd18fa989a0052c167f45560846f9f8713bfed346bf2933d9c
MD5
ee4852f19777c3d39c69e6040db894a5

Signatures

Resource Development

T1608.005 contacts_url_shortener: Connects to url shortening services

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1047 has_wmi: Executes one or several WMI requests

Persistence

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

Defense Evasion

T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
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
T1574 dropper_dll: Creates DLL, which is then loaded into the 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)
T1016.001 system_network_configuration_discovery: System network configuration discovery detected

Command and Control

T1102.003 cloud_bitbucket: Connects to cloud services of bitbucket.org (potentially for malicious payload delivery)
T1071.001 network_http: Performs HTTP requests

Other

creates_many_processes: Spawns a lot of processes (over 70)
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
network_powershell: Powershell process network connection detected
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
suricata_alert: Malicious traffic detected
yara_rules: Static rules