Managed XDR

letter-of-intent-09_10_2024-1-.eml — malware analysis report

File info

Filename
letter-of-intent-09_10_2024-1-.eml
File type
HTML document, ASCII text, with very long lines, with CRLF line terminators
File size
23.8 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
fa9b0b25f7f8d1bc6d578282ce343a7415d2a0df
SHA256
a86ee7691c75fb74061f4375e8de094f7a469e6ea1b475f6072d413a6ebc3466
MD5
a389501221452d33e23b3b3eff76e9aa

Signatures

Initial Access

T1192 html_urls: HTML-document downloads a file

Execution

T1059 network_wscript_downloader: Wscript.exe initiated network communication
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1047 has_wmi: Executes one or several WMI requests
T1059 suspicious_process: Spawns a suspicious process
T1059.001 suspicious_process: Spawns a suspicious process
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059 wscript_info_discovery: Collects info about system with Wscript.Shell
T1059.005 bad_vbs: Suspicious VBScript file
T1059.005 obfuscated_vbs_wmi: Suspicious WMI queries from VBScript file

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
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

T1112 creates_largekey: Saves very large data in the registry, can be used to save the configuration or body of the malware
T1027 obfuscated_vbs: Detected obfuscated VBS
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1027 obfuscated_vbs_wmi: Suspicious WMI queries from VBScript file
T1480 system_default_lang_id_present: Checks the system language
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

Discovery

T1057 has_wmi: Executes one or several WMI requests
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
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 wscript_info_discovery: Collects info about system with Wscript.Shell
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell

Command and Control

T1071 network_wscript_downloader: Wscript.exe initiated network communication
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
add_base64_to_registry: Writes Base64 encoded data to registry
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call