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
9.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
0a9e2337fd0721ac34cda321e57590394e68c148
SHA256
c77ba0aa57f3c15c261f12f45c41d5aae89cf72b095412a05e73dee10df4c3e7
MD5
0017b0080f5968f563d8198995fcc8ba

Signatures

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1518 recon_programs: Collects information about installed programs
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

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

Other

creates_exe: Creates executable files in the file system
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
creates_in_programdata: Creates files in the ProgramData directory
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