Managed XDR

vtdl_uznqhuje (Expiro) — malware analysis report

File info

Filename
vtdl_uznqhuje
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1.1 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
30fa4b53c0fbe04aa84cab5e3aba1822bd7125c5
SHA256
d21aa2effdfb5d84ce75cd916f358511de9054f87e0a79431331bea9bb37e55c
MD5
a0d6e63b0603271abd4c918fe15993c1

Malwares

  • Expiro

Signatures

Execution

T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key

Privilege Escalation

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
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

T1562.001 disables_security: Disables Windows Security options
T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1562 modify_security_center_warnings: Attempts to modify or disable Security Center notifications
T1562.001 browser_security: Modifies browser security settings
T1112 stealth_hide_notifications: Attempts to change notification settings
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1574.011 persistence_services: Modifies Services registry key
T1036 system_filename: Created a file named as a common system file
T1089 disables_smartscreen: Modifies or disables Windows SmartScreen
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
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

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_ftp: Collects data from local FTP clients
T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1518.001 antiav_detectservice: Attempts to detect installed antiviruses by a certain service
T1518.001 antiav_detectreg: Attempts to detect installed antiviruses by a certain registry key
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518 recon_programs: Collects information about installed programs
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name

Impact

T1489 stops_service: Stops Windows services
T1486 modifies_files2: Cryptolocker indicators detected (50 or more files are modified)
T1489 change_service_config: Stops services via ChangeServiceConfig
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
executes_dropped_exe: Executes dropped exe files
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
expiro_mutexes: Expiro is detected: mutex
process_crashed: One of the processes has failed
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
access_recyclebin: Manipulation with recyclebin detected
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

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