Managed XDR

c0a42741eef72991d9d0ee...b6373d1fe56e02_new.exe (AvosLocker, Avos) — malware analysis report

File info

Filename
c0a42741eef72991d9d0ee8b6c0531fc19151457a8b59bdcf7b6373d1fe56e02_new.exe
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
919.1 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
e13e344781336ba3b606532b755cbe9a12cd28e3
SHA256
f209e5baf89f01c4e7f409e102b69b669f7650dc4f7469cea0fe681808540633
MD5
98f5e90d849e15a2fbff2f36b1b45295

Malwares

  • AvosLocker
  • Avos

Signatures

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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
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
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Collection

T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 ransomware_files_2: Ransomware(s) AvosLocker indicators detected (creates keys and the instruction on how to unlock the files)

Other

yara_rules: Static rules
ransomware_avos: Detected Avos ransomware
avoslocker_mutex: Creates mutexes typical for AvosLocker
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