Managed XDR

wextract.exe-.mui — malware analysis report

File info

Filename
wextract.exe-.mui
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
dc39eb2b59dec6e75913ebce843847bcef56de96
SHA256
471113b7f9973a46582cc3f0be7c962f2d9701edbf60d5a4e67d3130e483ff30
MD5
5b706f67e5c319cbc753c2b0a86faee4

Signatures

Resource Development

T1585.001 social_instagram: Connects to Instagram domains (potentially for information gathering)
T1586.001 social_instagram: Connects to Instagram domains (potentially for information gathering)
T1608.005 contacts_url_shortener: Connects to url shortening services
T1585.001 social_facebook: Connects to Facebook domains (potentially for information gathering)
T1585.001 social_twitter: Connects to Twitter domains (potentially for information gathering)
T1586.001 social_facebook: Connects to Facebook domains (potentially for information gathering)
T1586.001 social_twitter: Connects to Twitter domains (potentially for information gathering)

Execution

T1059 autoit: AutoIt script execution detected
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

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

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

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
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1082 has_wmi: Executes one or several WMI requests
T1057 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

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

network_bind: Starts servers listening at None
creates_exe: Creates executable files in the file system
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
executes_dropped_exe: Executes dropped exe files
yara_rules: Static rules