Managed XDR

vtdl_1733904373_ebysyade (Tinba) — malware analysis report

File info

Filename
vtdl_1733904373_ebysyade
File type
SMTP mail, ASCII text, with very long lines, with CRLF line terminators
File size
1.1 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
417f1470fb5091af374b3e63f00e8372705e6330
SHA256
5cb6fc7b66a240232c67b6c8865a619206eb6e5f95d054cf15d04589ff46339b
MD5
6340450395c2dec1cb566698c5a0d12d

Malwares

  • Tinba

Signatures

Initial Access

T1192 html_urls: HTML-document downloads a file

Execution

T1059.003 suspicious_batch: Suspicious batch

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

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1070 stealth_window: A process created a hidden window
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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_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

T1497.001 antivm_disk_size: Checks the amount of free disk space
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
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Other

yara_rules: Static rules
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
checktokenmembership: Checks user token with CheckTokenMembership call

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