Managed XDR

kra.doc — malware analysis report

File info

Filename
kra.doc
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: mjereson@gmail.com, Template: Normal, Last Saved By: mjereson@gmail.com, Revision Number: 65, Name of Creating Application: Microsoft Office Word, Total Editing Time: 53:00, Create Time/Date: Mon Apr 8 20:12:00 2024, Last Saved Time/Date: Tue Apr 9 09:53:00 2024, Number of Pages: 7, Number of Words: 467, Number of Characters: 2666, Security: 0
File size
66.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
8486d71a4e3682611f95c8c49c7992599a6a1c6b
SHA256
d4aa5ffed84cba907dbb4432d497f2ac164b5c58ac9449ce6375615d4efd8cf6
MD5
a0218258b42dbdd386f50de561b4d3c9

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1204.002 office_strings: Office file contains suspicious strings
T1064 office_macros_suspicious: Document contains suspicious macro
T1059.001 suspicious_process: Spawns a suspicious process
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

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

T1064 office_macros_suspicious: Document contains suspicious 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
T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro

Credential Access

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

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1083 checks_recent_files: Attempt to check recently opened files through registry

Command and Control

T1102.003 cloud_dropbox: Connects to cloud services of Dropbox (potentially for malicious payload delivery)

Other

yara_rules: Static rules
create_rpc_bindings: Creates RPC connection
changes_ext_type: File extension changed from executable to non-executable or vice versa
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
suricata_alert: Malicious traffic detected