Managed XDR

calc.exe — malware analysis report

File info

Filename
calc.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
179 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
0449d250efa749ad586d1ac7e675bc78a4233eed
SHA256
60f83a9b29e2bc828ac2dded9a12bdd9f67ca54e36bcf8d06f967dd6f597cc7b
MD5
9e2b827e30a4046504dcdabc84ca730c

Signatures

Initial Access

T1091 spreading_autoruninf: Creates an autorun.inf file

Privilege Escalation

T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1564.001 stealth_file: Creates hidden or system files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Lateral Movement

T1091 spreading_autoruninf: Creates an autorun.inf file

Other

creates_exe: Creates executable files in the file system
has_pdb: This executable file has a PDB path
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
yara_rules: Static rules