Managed XDR

vtdl_yf6fwci8 — malware analysis report

File info

Filename
vtdl_yf6fwci8
File type
CDFV2 Microsoft Outlook Message
File size
179 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
174331bebab17e64e9a88266be0a2aba4ec0a355
SHA256
bf856e0a194d1d882e2fb935c2ab6fc8b4e72eee41309f0764e729ee4122ad7f
MD5
48386f0dfdc3ede41cf34670845ba151

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059 network_wscript_downloader: Wscript.exe initiated network communication
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1204.002 mimics_extension: Attempts to mimic the file extension
T1059.001 suspicious_process: Spawns a suspicious process
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

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

T1036 mimics_extension: Attempts to mimic the file extension
T1070 stealth_window: A process created a hidden window
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
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

Discovery

T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

T1071 network_wscript_downloader: Wscript.exe initiated network communication
T1102.003 references_discord: Contains links to cloud services of Discord (potentially for malicious payload delivery)
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
code_share_services: Connects to text storage services (potentially for malicious payload delivery)
modifies_certs: Attempts to generate or modify system certificates
pdf_page: Contains only one page
dead_host: Connects to IP addresses that do not respond to requests
pdf_compressed_stream: Contains an object with compressed stream
get_policy_info: Retrieves information about a Policy object
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call
suricata_alert: Malicious traffic detected