Managed XDR

cancellation_letter_488918624-02242021.xls — malware analysis report

File info

Filename
cancellation_letter_488918624-02242021.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1251, Author: Admin, Last Saved By: Friner, Name of Creating Application: Microsoft Excel, Create Time/Date: Sat Sep 16 00:00:00 2006, Last Saved Time/Date: Wed Feb 24 11:14:53 2021, Security: 0
File size
144.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
4e8fab3225ae097b87c20495e9e223a82678295f
SHA256
7e95a03cbcce5c285a8129a9c7b7014160d769d8b9c42783bebaaec3cb027854
MD5
03ca118f495ac1d3117346c9abb020f2

Signatures

Execution

T1559 suspicious_process: Spawns a suspicious process
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1064 office_macros: The document contains macroses (total: 2)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macroses (total: 2)
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
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

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

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents

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

suricata_alert: Malicious traffic detected
dns_without_resolve: DNS query without a response
office_summary: The document contains suspicious metadata
creates_suspended_process: Creates suspended process
message_box: Displays a message
test_check_service: Starts services
office_links: Office file contains external links
writes_data: Writes big amount of data to disk
js_suspicious: Suspicious javascript
yara_rules: Static rules