Managed XDR

17418003018-h8021201yi-sun-jian-bom.xls — malware analysis report

File info

Filename
17418003018-h8021201yi-sun-jian-bom.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 936, Name of Creating Application: Microsoft Excel, Last Printed: Thu Aug 18 11:58:00 2011, Create Time/Date: Tue Dec 17 01:32:42 1996, Last Saved Time/Date: Wed Mar 6 08:59:35 2013, Security: 0
File size
89 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c303d0f2b70690a4e1f635cc563c252db7fc0d16
SHA256
5be78057ed4793e9c6fbaedad38cb982ff4c21e650dc48c0079d1e35ba5f2ea8
MD5
57adc67ecca84f8ed19441df7af98e1b

Signatures

Execution

T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros_suspicious: Document contains suspicious macro
T1204.002 office_wmi_load: Microsoft Office loads WMI DLL files (WMI usage indicator in macroes)
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

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_suspicious: Document contains suspicious macro
T1562.001 office_security: Attempts to modify Microsoft Office security settings
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
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
T1552 cookie_files: Accesses cookie files

Discovery

T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card