Managed XDR

data.exe (Virlock) — malware analysis report

File info

Filename
data.exe
File type
MS-DOS executable, MZ for MS-DOS
File size
91.7 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
24226a957e0b2b622795122556294b981a49e6ed
SHA256
3b080c0ee173d9dc2050a438dcb03c7eb61e508077180022d7b00bc663f7ad51
MD5
517d281a24ab0ed566b9ba98bb227c26

Malwares

  • Virlock

Signatures

Persistence

T1546.002 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup
T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content

Privilege Escalation

T1546.002 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup
T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content
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

T1112 disable_folder_options: Attempt to disable or modify Explorer Folder Options
T1112 locker_cmd: Disables Windows cmd.exe
T1564.001 stealth_file: Creates hidden or system files
T1027.002 packer_polymorphic: Creates a modified copy of itself
T1112 locker_regedit: Disables Windows Registry Editor
T1112 stealth_hidden_extension: Attempts to change system settings so that file extensions won't be displayed
T1112 stealth_hiddenreg: Attempts to change Explorer settings so that hidden files won't be displayed
T1497 antidbg_windows: Checks for open windows typical for debuggers and forensic tools
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1027.002 packer_vb: The executable file is packed using VB
T1480 system_default_lang_id_present: Checks the system language
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Discovery

T1497 antidbg_windows: Checks for open windows typical for debuggers and forensic tools
T1057 process_interest: Enumerates processes
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1135 server_share_info: Retrieves information about each shared resource on a server

Impact

T1490 disables_system_restore: Disables System Restore

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
copies_self: Creates a copy of itself
suspicious_process: Spawns a suspicious process
unexpected_exception: Unexpected exception
create_rpc_bindings: Creates RPC connection
message_box: Displays a message
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
pe_overlay: PE file contains overlay

Related reports