Managed XDR

c-programdata-microsof...grams-startup-file.exe (Dharma) — malware analysis report

File info

Filename
c-programdata-microsoft-windows-start-menu-programs-startup-file.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
92.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
cae84a5a82950f614be03f1d5bb0f877acb7c93a
SHA256
8d85d0de80613a9822d10856f6f2c06e65f217c45e8fc974fa10e5fe181a5357
MD5
45fc7e407c18f6cf609318a6bc8111ee

Malwares

  • Dharma

Signatures

Execution

T1059.003 suspicious_cmd_process: Cmd.exe without commandline launches a new process
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Defense Evasion

T1564.001 stealth_file: Creates hidden or system files
T1070 stealth_webhistory: Clears browsing history
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
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

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1082 has_wmi: Executes one or several WMI requests
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

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1074.001 access_recyclebin: Manipulation with recyclebin detected

Command and Control

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

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1490 vssadmin_delete_shadows: Attempt to delete volume shadow copies
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
T1565.001 overwrites_firefox_settings: Modifies Mozilla Firefox settings
T1485 deletes_files: Removes 500 or more files from C: drive

Other

yara_rules: Static rules
ransomware_dharma: Detected Dharma ransomware
ransomware_shadowcopy: Removes volume shadow copies
creates_in_windows: Creates files in the Windows directory
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
copies_self: Creates a copy of itself
network_bind: Starts servers listening at None
creates_exe: Creates executable files in the file system
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
creates_in_programdata: Creates files in the ProgramData directory
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
pe_overlay: PE file contains overlay

Related reports

Managed XDR