Malicious PDF — malware analysis report

Static analysis result for SHA-256 5484cee32716a9c3…

MALICIOUS

PDF

45.2 KB Created: 2020-03-15 03:38:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-09
MD5: ba8eaa367c8870feb48c0bbebbb47202 SHA-1: b0bbb5505c611743c43dd70402e4f012f55cd723 SHA-256: 5484cee32716a9c3620a3650c4f2f9bd0b89a12f877a7c96778abf6c0558d2e4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to various domains, indicating a link farm or SEO abuse tactic. The primary URL http://71-159-221-57.overtimefitness.com/uploads/1/3/0/2/130271229/764706.pdf appears to be the initial lure. The heuristic PDF_SEO_LINK_FARM firing confirms the presence of a mass external PDF link farm, suggesting a coordinated effort to distribute malicious content or traffic. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://71-159-221-57.overtimefitness.com/uploads/1/3/0/2/130287514/130287514.html#falmouth+10+day+weather+report PDF link annotation
    • http://akesomedicalsolutions.com/uploads/1/3/0/6/130639935/rupeti_migaza.pdfIn PDF document text
    • http://mudassarshah.com/uploads/1/3/0/2/130272579/nobutebifexunaw.pdfIn PDF document text
    • http://hervek.com/uploads/1/3/0/9/130969984/dupojotetezijajovix.pdfIn PDF document text
    • http://awinspection.net/uploads/1/3/0/9/130970022/1076436.pdfIn PDF document text
    • http://nataliashand.com/uploads/1/3/0/6/130604769/c0c26f5.pdfIn PDF document text
    • http://royallyicedout.com/uploads/1/3/0/3/130323513/bd2af.pdfIn PDF document text
    • http://colonialcpchurch.org/uploads/1/3/0/2/130271229/764706.pdfIn PDF document text
    • http://jennifertuten.com/uploads/1/3/0/4/130488816/vedumajek.pdfIn PDF document text
    • http://cdconline.store/uploads/1/3/0/5/130550998/7574292.pdfIn PDF document text
    • http://www.writerswithroomtobloom.com/uploads/1/3/0/7/130739894/8044740.pdfIn PDF document text
    • http://afgtrainers.com/uploads/1/3/0/5/130539235/xewimetemul.pdfIn PDF document text
    • http://angelasoffice.com/uploads/1/3/0/3/130379529/9d6c121ad.pdfIn PDF document text
    • http://whiteevents.net/uploads/1/3/0/5/130551671/3001215.pdfIn PDF document text
    • http://netliving.com/uploads/1/3/0/2/130289308/7aa4c6fd1ef9c9.pdfIn PDF document text
    • http://infobiquity.com/uploads/1/3/0/6/130604090/zonek.pdfIn PDF document text
    • http://mail.nycancerfoundation.org/uploads/1/3/0/6/130639310/8001724.pdfIn PDF document text
    • http://cpanel.phaseonedismantlingservices.com/uploads/1/3/0/6/130605519/katovunowu-somoderun-talugalupa.pdfIn PDF document text
    • http://12741homanavenue.com/uploads/1/3/0/3/130313309/676c2dcf1911e.pdfIn PDF document text
    • http://wildchildcraft.studio/uploads/1/3/0/4/130488476/9f1e252.pdfIn PDF document text
    • http://www.cardilegal.com/uploads/1/3/0/6/130620782/7b55e848f1.pdfIn PDF document text
    • http://buildingonbookspodcast.com/uploads/1/3/0/7/130739488/750442.pdfIn PDF document text
    • http://www.scrubscaffeineandchaos.com/uploads/1/3/0/7/130739194/vaxozutenupul.pdfIn PDF document text
    • http://jacobapffel.com/uploads/1/3/0/6/130620453/2006624.pdfIn PDF document text
    • http://waybackwrestling.com/uploads/1/3/0/3/130313595/numeroni-joretaf.pdfIn PDF document text
    • http://theclickables.com/uploads/1/3/0/6/130604342/b439587da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000696d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696D 7988 bytes
SHA-256: e98f01f8cea0ead05b99f2f2f1f3012526b49fd51138b608a8a13f934afee8d3
font_01_sfnt_off000087ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AE 2652 bytes
SHA-256: e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
font_02_sfnt_off00009115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9115 16060 bytes
SHA-256: 6ddf53b883350c964210757953e72edacca849803b95280767352c6c691d264d