Managed XDR

wextract.exe — malware analysis report

File info

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

Environment

win7/x64 en

Hashes

SHA1
5e7c41f4caa9a574c763ee7b2695397082ba12fa
SHA256
d02e946645a340534c27bde69aae85d3d1242683477780a20b7ca32deb9753cb
MD5
b5fb24ff9a8bc0b471f857436394e9aa

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.001 suspicious_process: Spawns a suspicious 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_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
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

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses

Other

yara_rules: Static rules
ip_domains: Identifies an IP address using external resources
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
origin_langid: Unconventional language of the executable file
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
open_winlogon_process: Trying to open winlogon process
suricata_alert: Malicious traffic detected