Managed XDR

c-users-user-appdata-l...83f30015f6df9e0dbce1c5 (Conti) — malware analysis report

File info

Filename
c-users-user-appdata-local-temp-ymnkxc2u.nkl-exe.ransomware.conti-64-f1-a2-64f1a2e5f52292fba8f64a8...58f1607cac783f30015f6df9e0dbce1c5-64f1a2e5f52292fba8f64a851c466d558f1607cac783f30015f6df9e0dbce1c5
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
185.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
124d9ce50a4b0dfa0b150b44c77c85cd2589148c
SHA256
64f1a2e5f52292fba8f64a851c466d558f1607cac783f30015f6df9e0dbce1c5
MD5
3a3001ecddb08440a659d49e4e29a697

Malwares

  • Conti

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

Privilege Escalation

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

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

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
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)

Other

yara_rules: Static rules
ransomware_shadowcopy: Removes volume shadow copies
no_graphical_activity: No graphic activity
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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