Managed XDR

postacert-57-.eml — malware analysis report

File info

Filename
postacert-57-.eml
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
91.4 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
c7624e1b6394c7d124c047338e6795c2c75dcd0c
SHA256
9d28a51942f6e74f41391448f2f9170c4aac461af72aed908cfa0ffcdd339161
MD5
50b6b95f891be5880fae1335765c0ed7

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious PowerShell process
T1059.007 bad_js: Suspicious Javascript file
T1204.002 mimics_extension: Attempts to mimic the file extension
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.001 suspicious_process: Spawns a suspicious process
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

T1036 mimics_extension: Attempts to mimic the file extension
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
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 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization

Command and Control

T1102.003 cloud_google: Connects to cloud services of Google (potentially for malicious payload delivery)
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

network_powershell: PowerShell process network connection detected
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
yara_rules: Static rules