Managed XDR

wextract.exe-.mui (Thanos, AsyncRAT) — malware analysis report

File info

Filename
wextract.exe-.mui
File type
PE32+ executable (GUI) x86-64, for MS Windows
File size
820 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
cc43f1d880567aa8a17ab31e8524f8317a874e3f
SHA256
f4b46dea937af15b32427d9707f5545824ddb54af9316774d4229957fc04db06
MD5
887472eae26934ae23eae682b9e4cb74

Malwares

  • Thanos
  • AsyncRAT

Signatures

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

T1070 stealth_webhistory: Clears browsing history
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_queries_computername: Retrieves the computer name
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

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497.001 antivm_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
dead_host: Connects to IP addresses that do not respond to requests
unexpected_exception: Unexpected exception
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
get_policy_info: Retrieves information about a Policy object
asyncrat_mutexes: Creates mutexes typical for AsyncRAT
executes_dropped_exe: Executes dropped exe files

Related reports