Managed XDR

vtdl_oh_c79no (Badnews backdoor) — malware analysis report

File info

Filename
vtdl_oh_c79no
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1252, Title: PowerPoint Presentation, Author: Qiang, Comments: generated using python-pptx, Last Saved By: Windows User, Revision Number: 2, Name of Creating Application: Microsoft Office PowerPoint, Total Editing Time: 02:43, Create Time/Date: Sun Jan 27 09:14:16 2013, Last Saved Time/Date: Mon Jul 11 04:57:38 2016, Number of Words: 11021
File size
2.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
0637875e7dcef986a05cc0a38016cc162981eaf9
SHA256
781c2f423055fbb5bc058b579b655d0ff5dc27bc714ba2a675615dadfa960c3d
MD5
f0d57adb4600679dd0c5ba3dec7a02e6

Malwares

  • Badnews backdoor

Signatures

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1083 checks_recent_files: Attempt to check recently opened files through registry

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
office_embedded: Office document contains embedded executable file(s)
dns_without_resolve: DNS query without a response
dead_host: Connects to IP addresses that do not respond to requests
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
break_limit_exceeded: Warning: function calls limit has been exceeded
creates_exe: Creates executable files in the file system
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
pe_overlay: PE file contains overlay

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