Managed XDR

c-programdata-microsof...ms-startup-payload.exe (Dharma) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
1b2ed5c4871d08ebc8a62495fb5c8dd4c897e2d1
SHA256
7ecb2207b8e9e3e95700c1a0e8616995a07aecc3437d53705ba9dc6bf7ca18e0
MD5
e7290701c6f837d655e00f5df6ca4b40

Malwares

  • Dharma

Signatures

Execution

T1059.003 suspicious_cmd_process: Cmd.exe without commandline launches a new process

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
T1027.002 packer_entropy: Probably contains compressed or encrypted data

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
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

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed

Collection

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

Impact

T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1490 vssadmin_delete_shadows: Attempt to delete volume shadow copies
T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
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
creates_exe: Creates executable files in the file system
no_graphical_activity: No graphic activity
has_pdb: This executable file has a PDB path
test_check_service: Starts services
writes_data: Writes big amount of data to disk

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