Managed XDR

wextract.exe-.mui (Amadey, Rhadamanthys Stealer) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
b96b7649741ed15ae70297e8ed52fbf40c59e498
SHA256
dedf7258b0e8bbe4c6df5c3e78547f9da0a06758c0155c9bf838cab38547b21a
MD5
1bd8520f3f2e325ff7eafec9d9b0c241

Malwares

  • Amadey
  • Rhadamanthys Stealer

Signatures

Execution

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059 autoit: AutoIt script execution detected
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler

Privilege Escalation

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055.012 injection_runpe: Injects code into another process
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562.001 disables_security: Disables Windows Security options
T1497.001 antivm_virtualpc: Attempts to detect VirtualPC
T1497.001 antisandbox_sunbelt: Attempts to detect SunBelt Sandbox
T1497.001 antisandbox_file: Attempts to detect a sandbox (checks the file name)
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1027.002 packer_enigma: Enigma protector indicators detected
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_directory_objects: Scans directory objects, possibly to find VM indicators
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

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

Discovery

T1497.001 antivm_virtualpc: Attempts to detect VirtualPC
T1497.001 antisandbox_sunbelt: Attempts to detect SunBelt Sandbox
T1497.001 antisandbox_file: Attempts to detect a sandbox (checks the file name)
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1518.001 antiav_avast_libs: Attempts to detect Avast Antivirus by a certain library
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_directory_objects: Scans directory objects, possibly to find VM indicators
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1135 server_share_info: Retrieves information about each shared resource on a server
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 reads_csrss: Attempts to read csrss.exe memory

Command and Control

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

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
network_anomaly: Network anomalies occured during the analysis
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
suspicious_network_port: Performs TCP or UDP request to non-standard port
checktokenmembership: Checks user token with CheckTokenMembership call
open_winlogon_process: Trying to open winlogon process
executes_dropped_exe: Executes dropped exe files

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