Malicious PDF — malware analysis report

Static analysis result for SHA-256 7df41b0cfa610a5d…

MALICIOUS

PDF

41.1 KB Created: 2020-08-28 14:19:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 838c22743c050589bd0e12c61e123165 SHA-1: f0650a6dd97f0e31380f3018f0b59a8892b3874b SHA-256: 7df41b0cfa610a5dcefa413d2da8250a3a103b9e7b3a48099981e7091d19eff4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service, suggesting a phishing or SEO manipulation scheme. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector URL reinforces this. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to lead the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.club/pify?keyword=quante+volte+dovresti+defragare+il+t In PDF document text
    • http://files.stillpointwellbeing.com/uploads/1/3/1/3/131398164/tupipivovadu_mejemadatuk_kaduwilir_digubuvod.pdfIn PDF document text
    • http://meturigaz.sweetwaterlax.com/uploads/1/3/0/7/130740013/9984838.pdfIn PDF document text
    • http://files.eurocse.org/uploads/1/3/0/7/130739678/papaxi.pdfIn PDF document text
    • http://files.riseoverrunfit.com/uploads/1/3/1/3/131383512/vetevod.pdfIn PDF document text
    • http://tubuxa.crazyforcarsblogs.com/uploads/1/3/2/7/132740978/buterorun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/rovijitepujusezeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5580/7654/files/galesic_wikipedia_shqip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5725/6350/files/nobotipaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7454/1981/files/hindu_astrology_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1329/files/60160696737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/ponigesopadofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1314/files/40788571889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3162/5882/files/18688811949.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 5

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_off0000619e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619E 5196 bytes
SHA-256: 092b112279a0cfdf19cf444a2056e6c5defe9e775d2776b61688b34bf882c495
font_01_sfnt_off00007369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7369 11000 bytes
SHA-256: de25a28f528b9264f8a500808cf415ddd853e8ab88f5191c2badaf37c3e7329f

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