Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f35b7f3a0251dbe…

MALICIOUS

PDF

255.1 KB Created: 2021-05-03 04:46:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8f41ccca1f80f752d2204a6b6cda9dc9 SHA-1: 784b1c70aa185c052a210f8c966d29d7675f5060 SHA-256: 9f35b7f3a0251dbed3c16317885f932d231b59492a79d9637663b4b0e7f24feb
76 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is malicious and uses an SEO redirector for a 'free-download phishing' lure. The primary malicious URL identified is https://druttle.ru/strik?utm_term=tomb+of+the+triclinium+patron. While no scripts were explicitly extracted, the PDF structure and ML classifier strongly suggest malicious intent, likely to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://druttle.ru/strik?utm_term=tomb+of+the+triclinium+patron PDF link annotation
    • http://monoga.space/simple_present_reading_comprehension_exercisesdzqcq.pdfIn PDF document text
    • http://3bki.ru/tebigiwudisj1ld.pdfIn PDF document text
    • http://proita.space/medubavurojuxovjeu7.pdfIn PDF document text
    • http://dakiravafo.iblogger.org/65011806738.pdfIn PDF document text
    • http://soul-felt.com/34463150847h24ir.pdfIn PDF document text
    • http://ketotreno.buzz/little_albert_experiment_conclusiontgm8d.pdfIn PDF document text
    • http://premial.su/91326673850nl4tk.pdfIn PDF document text
    • http://fruitik.space/6293227214hkj7t.pdfIn PDF document text
    • http://shoop-fl.ru/diagramas_casos_de_usop79q2.pdfIn PDF document text
    • http://dororuminaxa.mywebcommunity.org/mitanebugofotawefiwokodem.pdfIn PDF document text
    • http://gadivawiw.sportsontheweb.net/kopajuxagorigizeka.pdfIn PDF document text
    • http://quickstore.pro/lowebejoruwafomiskjn86.pdfIn PDF document text
    • http://instapodarok365.site/what_is_meant_by_power_dissipationmgxjn.pdfIn PDF document text
    • http://converstarget.ru/mitologia_griega_diosa_de_la_sabiduria_y_artesereo6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://romipozaxijida.rf.gd/tisedifigozaw.pdfIn PDF document text
    • http://sarijuwowu.rf.gd/what_the_baby_boy_names_that_start_with_j.pdfIn PDF document text
    • http://jalebuvubo.myartsonline.com/51869691728.pdfIn PDF document text
    • https://f815f12b-539f-4060-8ed9-abd2caada31b.filesusr.com/ugd/ceb2e8_55ff174ed67e4378a0759483e8e5b02a.pdf?index=trueIn PDF document text
    • https://91313464-3f42-441e-b0e8-b27065d471ad.filesusr.com/ugd/ee9d3f_95b158e9ce83447eab2b0112abb47721.pdf?index=trueIn PDF document text
    • https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_506689dc4eb543b78c279567600f910e.pdf?index=trueIn PDF document text
    • http://voderekop.rf.gd/mosulun.pdfIn PDF document text
    • http://resilasijajatil.myartsonline.com/89263651765.pdfIn PDF document text
    • http://fosixokosed.rf.gd/11584520424.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003b2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B2DC 5164 bytes
SHA-256: 47edf970b9bfee7012d23c3bd765f8548fc9a682db9f4685d15724619571ccc6
font_01_sfnt_off0003c445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C445 12388 bytes
SHA-256: bc0f6852d36326081301a6b4520466a866d7916d2e2eb638952fbc7beded9d55

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