Managed XDR

c-users-user-appdata-l...00f9sd0f90sf90f-1-.doc (Loki PWS) — malware analysis report

File info

Filename
c-users-user-appdata-local-microsoft-windows-temporary-internet-files-content.ie5-d40baapm-df090fg89fd90ad0sf09a0f90s0xc0v0s9d0f0sd9f0909s0df0sdf00f9sd0f90sf90f-1-.doc
File type
Rich Text Format data, version 1, unknown character set
File size
61.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
cc45ee14a7f177d505fede94b2cc1f80b8b8f6d6
SHA256
0190e597f8250e9b9c780f62a86bbcca4f7a639a3ef71f72690a79d8fe58e5f3
MD5
2c7cdbd354907bffe3441e4aae1cd6f4

Malwares

  • Loki PWS

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059.005 bad_vbs: Suspicious VBScript file
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1059.005 obfuscated_vbs: Detected obfuscated VBS
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 wscript_info_discovery: Collects info about system with Wscript.Shell
T1059.005 obfuscated_vbs_wmi: Suspicious WMI queries from VBScript file
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Persistence

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

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
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

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.002 inject_write_pe: Writes PE file to another process's memory
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
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 office_security_check: Checks Microsoft Office security settings
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
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
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)

Credential Access

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

T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1057 has_wmi: Executes one or several WMI requests
T1497 office_security_check: Checks Microsoft Office security settings
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell
T1082 wscript_info_discovery: Collects info about system with Wscript.Shell

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
ce_info: Loki Bot Configuration Data found
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
test_check_service: Starts services
writes_data: Writes big amount of data to disk
dotnet_suspicious_cultureidentifier: Dotnet program contains invalid CultureIdentifier

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