Managed XDR

vtdl_1746270181_9q_vm7uf (Bazar Loader) — malware analysis report

File info

Filename
vtdl_1746270181_9q_vm7uf
File type
PE32+ executable (GUI) x86-64, for MS Windows
File size
225 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
b791be43388b8a7b46cb5a68328918a47c480fb4
SHA256
2b0d20207c0e4f487db220b3966605e6cb136be968b12b3ef99499813e4dfa41
MD5
2fbd2de31ea43d2dfc43681085c6a5bb

Malwares

  • Bazar Loader

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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
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 infostealer_mail: Collects personal data from local email clients
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1114 infostealer_mail: Collects personal data from local email clients

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 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)
T1565.001 overwrites_firefox_settings: Modifies Mozilla Firefox settings

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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