Managed XDR

c-windows-ae-0124-be.exe — malware analysis report

File info

Filename
c-windows-ae-0124-be.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1.4 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
5d553476bcf78e807345f8d0e5399b8cec91bb93
SHA256
77fde8d062865bab532473582197e113f01d255a0751b6410eb5b9a4bf946f59
MD5
4bcb5fe298dca700a1e5602ed997a8c7

Signatures

Initial Access

T1091 spreading_autoruninf: Creates an autorun.inf file

Execution

T1059.001 powershell_through_runspace: Executes powershell script without spawning powershell.exe process

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 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

T1027.002 packer_polymorphic: Creates a modified copy of itself
T1564.001 stealth_file: Creates hidden or system files
T1036 system_filename: Created a file named as a common system file
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497 evasion_prefetch: Attempts to detect Sandbox by process run count
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1027.002 packer_vb: The executable file is packed using VB
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1480 system_default_lang_id_present: Checks the system language
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497 evasion_prefetch: Attempts to detect Sandbox by process run count
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1135 server_share_info: Retrieves information about each shared resource on a server

Lateral Movement

T1091 spreading_autoruninf: Creates an autorun.inf file

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 100 or more files)

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
suspicious_process: Spawns a suspicious process
executes_dropped_exe: Executes dropped exe files
unexpected_exception: Unexpected exception
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
changes_ext_type: File extension changed from executable to non-executable or vice versa
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay