Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3bbbaba9d6bd478…

MALICIOUS

PDF

42.3 KB Created: 2020-03-12 11:21:55 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 6ed209270a5e691b9862789670d1e8df SHA-1: e5c82a92ddb89a1b599d07c45ad7707d57dc193f SHA-256: b3bbbaba9d6bd47834195474159b0e058eb49d77ab1491faf7cd7cd9022aaf57
96 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The embedded URL and the numerous links within the document body indicate a malicious intent to redirect users to potentially harmful content or for SEO manipulation purposes. No scripts were extracted from this sample.

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://www.crystal-parks.info/uploads/1/3/0/7/130775448/130775448.html#affections+touching+across+time+piano+notes PDF link annotation
    • http://newlegendpictures.net/uploads/1/3/0/6/130604993/bevululemokajorul.pdfIn PDF document text
    • http://phoinitiative.com/uploads/1/3/0/7/130775118/suwijoni.pdfIn PDF document text
    • http://www.rahimlovesnena.com/uploads/1/3/0/5/130588716/xijoz.pdfIn PDF document text
    • http://delgadojennifer.com/uploads/1/3/0/6/130639170/eef925.pdfIn PDF document text
    • http://alecdwaileebeportfolio.com/uploads/1/3/0/6/130605089/rutufo.pdfIn PDF document text
    • http://fsq.me/uploads/1/3/0/6/130639676/puwalivan.pdfIn PDF document text
    • http://panphillipsfishingresort.com/uploads/1/3/0/6/130603867/4819df3.pdfIn PDF document text
    • http://cinderscapesorl.com/uploads/1/3/0/7/130775527/127633.pdfIn PDF document text
    • http://multi-touchscreen.com/uploads/1/3/0/5/130588806/232e8341.pdfIn PDF document text
    • http://prdistributors.net/uploads/1/3/0/5/130550887/5222184.pdfIn PDF document text
    • http://ctmeetingspace.com/uploads/1/3/0/5/130541272/3b4452.pdfIn PDF document text
    • http://www.vacationmagicbyemily.com/uploads/1/3/0/6/130604690/nigipubume.pdfIn PDF document text
    • http://2005viper.com/uploads/1/3/0/7/130775932/nilekot-bofepaxe-sejune.pdfIn PDF document text
    • http://noradragoon.com/uploads/1/3/0/7/130739591/a2c8c.pdfIn PDF document text
    • http://mta-sts.lakemeridiantri.com/uploads/1/3/0/6/130604692/rejulovomurosowe.pdfIn PDF document text
    • http://mathisaplus.com/uploads/1/3/0/9/130969372/zelajenojesaku.pdfIn PDF document text
    • http://m.americancostsegregation.com/uploads/1/3/0/3/130313524/zovuwi_tamasev.pdfIn PDF document text
    • http://theperseverancedietbook.com/uploads/1/3/0/3/130313491/4e61c0.pdfIn PDF document text
    • http://www.tribecarestaurante.com/uploads/1/3/0/7/130776542/7296303.pdfIn PDF document text
    • http://leesgardenrestaurantgresham.com/uploads/1/3/0/5/130539107/5151565.pdfIn PDF document text
    • http://gwlorence.com/uploads/1/3/0/6/130620557/dufuvutomazuret.pdfIn PDF document text
    • http://spanishmaincocoabeach.com/uploads/1/3/0/3/130379428/6157a7.pdfIn PDF document text
    • http://xanaguy.com/uploads/1/3/0/5/130550976/mejevowagu_metamusofovulem_jikatudu_nexekosajabines.pdfIn PDF document text
    • http://carlapan.com/uploads/1/3/0/5/130590391/5585840.pdfIn PDF document text
    • http://parkingprick.com/uploads/1/3/0/6/130604411/44c0489a80e734.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F0 9076 bytes
SHA-256: 70c53f2be313c744be11721a6f06ad1b161977c4ebdb353dda7dd87e501b02bb

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