Managed XDR

c-programdata-microsof...s-startup-software.exe (Dharma) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
7862897b1ee1a0da076210abf42468a26c5d6152
SHA256
beacadf7f186acd5982f1b2ddb3adf96576e9c9320e8309022edcf09c1cf5b00
MD5
b50da75a3563c2fd7f8cbd8c85c86119

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

T1070 stealth_webhistory: Clears browsing history
T1564.001 stealth_file: Creates hidden or system files
T1027.002 packer_upx: The executable file is compressed using UPX
T1027.002 packer_entropy: Probably contains compressed or encrypted data

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
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1057 process_interest: Enumerates processes
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

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)
T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)
T1490 vssadmin_delete_shadows: Attempt to delete volume shadow copies
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
T1486 ransomware_files_2: Ransomware(s) Roger indicators detected (creates keys and the instruction on how to unlock the files)
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
creates_exe: Creates executable files in the file system
creates_suspended_process: Creates suspended process
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
writes_data: Writes big amount of data to disk

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