Managed XDR

introduction.doc (Emotet) — malware analysis report

File info

Filename
introduction.doc
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Zina, Template: Normal, Last Saved By: DONOVAN, Revision Number: 2, Name of Creating Application: Microsoft Office Word, Create Time/Date: Tue Apr 8 11:22:00 2025, Last Saved Time/Date: Tue Apr 8 11:22:00 2025, Number of Pages: 1, Number of Words: 0, Number of Characters: 1, Security: 0
File size
84 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
a154b51403c110d2f778fed43ad607c91dc06124
SHA256
677c709973721e6bc1fbf470f8805dec009fd68e8ac6d0f710008427fdefeaee
MD5
1a559d3bb2395db23671ad3fb35d3a74

Malwares

  • Emotet

Signatures

Execution

T1203 office_write_exe: Office document dropped an executable file
T1059.005 obfuscated_vbe: Detected obfuscated VBE script
T1059 suspicious_process: Spawns a suspicious process
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1059 wscript_info_discovery: Collects info about system with Wscript.Shell
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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 obfuscated_vbe: Detected obfuscated VBE script
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1064 office_macros: The document contains macro
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

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
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
checktokenmembership: Checks user token with CheckTokenMembership call

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