Malicious PDF — malware analysis report

Static analysis result for SHA-256 336148ccfd4f809a…

MALICIOUS

PDF

36.6 KB Created: 2020-05-17 02:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a91cfda31df2a624e5c9282df776f487 SHA-1: 1102faf657a09fb401ded0ba90e0e7a12a349d2e SHA-256: 336148ccfd4f809a9952286200cfc8d90a20f7d3d1cab04ccc36eb1562aad8f9
70 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 likely serve as a link farm to distribute traffic or host malicious content. The presence of a visual download button lure further suggests a deceptive intent. No scripts were extracted from this sample, but the sheer volume of external URLs points towards a campaign focused on redirecting users to potentially harmful sites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://beaverdamchurchonline.org/uploads/1/3/1/1/131164394/131164394.html#brainwashed+shapiro+pdf
    • http://corrylandcrystalevents.com/uploads/1/3/0/3/130323092/zesenuzu.pdf
    • http://usa-aauto.com/uploads/1/3/1/4/131454683/jilasolovid-jekelofeximiko-wijutaj-nepobaki.pdf
    • http://sognvegteneste.no/uploads/1/3/0/4/130483390/69d1ec1b229cf.pdf
    • http://desicaterersdelivery.com/uploads/1/3/1/4/131406798/furaxe_lovev_varasorajum_jojelo.pdf
    • http://marbledsilkartbyc.com/uploads/1/3/0/4/130476076/efe75d.pdf
    • http://natalieunisexandbarbershop.com/uploads/1/3/0/9/130969062/58685c31.pdf
    • http://localdiscoveries.net/uploads/1/3/0/6/130604056/ruletupewoduvijewina.pdf
    • http://lightningsoccerclub.org/uploads/1/3/1/3/131383309/7433036.pdf
    • http://claytonheightssportmassage.ca/uploads/1/3/0/2/130288924/1722754.pdf
    • http://thedaycation.com/uploads/1/3/1/4/131409305/dowebob-xamol-nobazi-misemanumefobe.pdf
    • http://turboadhc.info/uploads/1/3/0/6/130603859/edde047457c.pdf
    • http://thebigparty.info/uploads/1/3/0/7/130740265/6234134.pdf
    • http://fcnsunited.com/uploads/1/3/0/2/130289225/8d0c2e06.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_off000063b9.bin
225c8e5e0c4752abb3e613e78eb64dd03f74b36b9e99749c932efd82bcc087f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B9 10696 bytes

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