Managed XDR

cve-2023-38831-main.zip — malware analysis report

File info

Filename
cve-2023-38831-main.zip
File type
Zip archive data, at least v1.0 to extract
File size
4.1 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
160f0bea927a7ba61acee50f8f87c1a9778df7e3
SHA256
f8848c70a266d9197c13788f2596369960f612f73d490335399aea0e0eb5e715
MD5
0712eaa96a5f7d85110351860c9a367b

Signatures

Execution

T1204.002 mimics_extension: Attempts to mimic the file extension

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

T1036 mimics_extension: Attempts to mimic the file extension
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
opens_document: Opens office documents
pdf_compressed_stream: Contains an object with compressed stream
creates_suspended_process: Creates suspended process
suspicious_pdf: PDF file with suspicious content
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call
many_files_in_archive: The archive contains more than 5 files
Managed XDR