Malicious PDF — malware analysis report

Static analysis result for SHA-256 b219690ccc1fb545…

MALICIOUS

PDF

36.3 KB Created: 2020-04-22 23:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-09
MD5: cc6a715075b7bc04c7c1d03aa95463ed SHA-1: ff72b82ed87053f3d49923b5d60a0d37fb9ac801 SHA-256: b219690ccc1fb5451c24d3699e2fda03be9a8186364ba3cf8634911b360cb5b4
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to other PDF files, which is indicative of a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous external URLs suggests an attempt to redirect the user to malicious content or to manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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
  • 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://coastmountainjazz.com/uploads/1/3/0/6/130604230/130604230.html#bolton+sheet+metal+roofing+cladding+bolton PDF link annotation
    • http://harrogateholidayapartments.com/uploads/1/3/0/7/130776553/9480736.pdfIn PDF document text
    • http://ralucaheim.com/uploads/1/3/0/6/130605115/1721736.pdfIn PDF document text
    • http://heartyourheart.net/uploads/1/3/1/0/131071125/lagelosizizeko.pdfIn PDF document text
    • http://onemilehigher.com/uploads/1/3/0/8/130813144/pedewuxolu-julanudikikesig-xuniporukavup-raguzaxo.pdfIn PDF document text
    • http://drdonhashimoto.com/uploads/1/3/1/0/131070375/wanajuvadem.pdfIn PDF document text
    • http://consertlar.net/uploads/1/3/0/2/130289801/tuwezo.pdfIn PDF document text
    • http://iehospitalitygroup.com/uploads/1/3/0/4/130476661/gafosima.pdfIn PDF document text
    • http://rimrepairnewyork.com/uploads/1/3/0/5/130588796/netilibu.pdfIn PDF document text
    • http://morganlwebster.com/uploads/1/3/0/8/130874097/9bb14f3b22b67e7.pdfIn PDF document text
    • http://hcbinterpreting.com/uploads/1/3/0/6/130621141/kixiromizi.pdfIn PDF document text
    • http://esl-mentor.com/uploads/1/3/0/3/130312972/wavizej-fipojabo-revofarawufoxo.pdfIn PDF document text
    • http://radiantlifeacademy.org/uploads/1/3/0/5/130590537/7827632.pdfIn PDF document text
    • http://palletguys.ca/uploads/1/3/0/8/130874077/1408188.pdfIn PDF document text
    • http://zolasplants.com/uploads/1/3/0/6/130620659/4368784.pdfIn PDF document text
    • http://dartistessalon.com/uploads/1/3/0/7/130776338/kezugab.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

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_off0000679d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679D 7948 bytes
SHA-256: b2ee87877f52b9c02a56adefdc59250bd000540c01fd87942f9a76606bb5702b

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