Managed XDR

c-users-user-appdata-l...df1b74e85f7b4dc3a5.tmp — malware analysis report

File info

Filename
c-users-user-appdata-local-temp-df1b74e85f7b4dc3a5.tmp
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1252, Author: bleung, Keywords: CTPClassification=CTP_NT, Last Saved By: Frank Cheng, Name of Creating Application: Microsoft Excel, Create Time/Date: Fri Feb 29 20:44:00 2008, Last Saved Time/Date: Wed Sep 26 00:38:13 2018, Security: 0
File size
4.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
bbec39011db057ed1ff2cea780beed831f7c1a43
SHA256
afd17a9a93af6fe0dcfb1654de1c3054e28a4cd7e0b5597771d1e549907cf64b
MD5
11fe22310768d92e9d29b2144388ee83

Signatures

Execution

T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macroses (total: 40)
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)

Persistence

T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content

Privilege Escalation

T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content
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

T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)
T1564.001 stealth_file: Creates hidden or system files
T1027 office_macros_hex_strings: Lines in hex found in document macro
T1096 persistence_ads: Creates Alternate Data Stream (ADS)
T1070 stealth_webhistory: Clears browsing history
T1064 office_macros_suspicious: Document contains suspicious macro
T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 40)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1135 server_share_info: Retrieves information about each shared resource on a server
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
office_links: Office file contains external links
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call
yara_rules: Static rules