Managed XDR

vtdl_1733235480_ys1w8b1g — malware analysis report

File info

Filename
vtdl_1733235480_ys1w8b1g
File type
SMTP mail, ASCII text, with CRLF line terminators
File size
132.2 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
2e5e1d390865370e75c30b8f510b1cb6bcd56acf
SHA256
b84a0f20f71645d966a61fc56685803f0f79571d2e00126f018a3da821a29a39
MD5
5c9c7bb9348a9544898c5472c391cee3

Signatures

Execution

T1204.002 mimics_extension: Attempts to mimic the file extension
T1569.002 persistence_service: Starts newly created service

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1036 mimics_extension: Attempts to mimic the file extension
T1070 stealth_webhistory: Clears browsing history
T1497 debugs_self: Creates a process and debugs it
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1497 debugs_self: Creates a process and debugs it
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1102.003 references_bitbucket: Contains links to cloud services of bitbucket.org (potentially for malicious payload delivery)

Other

suricata_alert: Malicious traffic detected
rms_admin: Remote Manipulator System indicators detected (files or registry)
suspicious_pdf: PDF file with suspicious content
suspicious_pdf_link: PDF file with suspicious hyperlink or content
rms_lms_bins: Listens on port 5650 used by RMS\LiteManager
network_bind: Starts servers listening at 0.0.0.0:5650, None
opens_document: Opens office documents
creates_exe: Creates executable files in the file system
pdf_page: Contains only one page
suspicious_process_network: Unusual process network activity detected
creates_doc: Creates (office) documents in the file system
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
create_rpc_bindings: Creates RPC connection
pdf_compressed_stream: Contains an object with compressed stream
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
office_links: Office file contains external links
pe_overlay: PE file contains overlay
open_winlogon_process: Trying to open winlogon process