Malicious PDF — malware analysis report

Static analysis result for SHA-256 301a72a66ea1b242…

MALICIOUS

PDF

28.7 KB Created: 2020-03-27 02:11:36 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d3deeb569ac8a720cbb66489baad6f51 SHA-1: 241c6f2e579049ad204601338f60cffd739c8a44 SHA-256: 301a72a66ea1b2425ebf35cd49983fde821f2bc4463ced47cfea5395e34e8028
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of a link farm, designed to direct users to a large number of external URLs. The document body contains text related to 'Costa del mar sunglasses careers' and numerous embedded URLs, many of which point to similarly structured domains. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a mass external link farm. The primary intent appears to be to drive traffic to these external sites, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://toyota-trd-super-power-trd.com/uploads/1/3/1/0/131070983/131070983.html#costa+del+mar+sunglasses+careers
    • http://djonny.net/uploads/1/3/0/4/130483986/texaxosemilagub.pdf
    • http://neal-daley.com/uploads/1/3/0/2/130272577/nilozadubofabumune.pdf
    • http://mta-sts.casperscrew.com/uploads/1/3/0/7/130739247/798493.pdf
    • http://michaelmoorestudios.com/uploads/1/3/0/6/130639842/109763.pdf
    • http://safedrivingas.com/uploads/1/3/0/2/130287866/8f3a719dc6ed7d.pdf
    • http://grheatingandcooling.net/uploads/1/3/0/4/130488265/negakuvusubu-kexodumatazune.pdf
    • http://boksybox.com/uploads/1/3/0/6/130620399/8244683.pdf
    • http://www.berkeleyfpdocs.com/uploads/1/3/0/9/130969062/9909460.pdf
    • http://annapontel.com/uploads/1/3/0/6/130621135/xabaviwiko.pdf
    • http://www.readingsbykata.com/uploads/1/3/0/6/130639929/xitopesagijod_pilaratad.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d46.bin
245e6d5da1fd6af6b5526a9392bd39af85371e56a04afd0a8b8f2d99e4a0448a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D46 6212 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.