Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb19ab917bb0880b…

MALICIOUS

PDF

23.5 KB Created: 2020-04-11 00:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: cef6488b73a8a9a5019f1afe2a564e35 SHA-1: f29c4abb393c248b1adde6f975b89ef80969721e SHA-256: fb19ab917bb0880b07fcc8e66a8ada23839fd63fb176acd6a5f19ee1107a8ee5
94 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Sonic forces cheats' and embeds numerous external links, many of which point to other PDF files. This behavior is indicative of a link farm or a phishing attempt designed to redirect users to malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

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://pameladirnberger.com/uploads/1/3/1/3/131383708/131383708.html#sonic+forces+cheats
    • http://insureappleipod.com/uploads/1/3/1/0/131070173/vulovewal-reduwoborofopeb.pdf
    • http://lincolnmattressfurniture.com/uploads/1/3/0/5/130540176/danepifinolam-zunog-dobora-xazudujojize.pdf
    • http://freshground.studio/uploads/1/3/1/1/131163864/e074ebad46d4.pdf
    • http://monroviamattressoutlet.com/uploads/1/3/0/5/130538870/0014f682f3f.pdf
    • http://victoriansportinghub.com/uploads/1/3/0/5/130544070/caa3a9544774.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_off00003c7f.bin
d794ba28f081ac49942ca310ac48f00da2d1ca178ab211efaa52869183824001		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C7F 5420 bytes

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