Malicious PDF — malware analysis report

Static analysis result for SHA-256 606e790393bd3ef6…

MALICIOUS

PDF

40.8 KB Created: 2020-08-12 10:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c55ae164920123d89a499de95e2d3bcd SHA-1: 8933eaf4ff218e044ca44bf6ed082889ddb21254 SHA-256: 606e790393bd3ef691ed437bb7e34b8120e7c4051ed29fbe729ccef93ab3684d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.ru/pify?keyword=ada+2020+diabetes+pdf+espa%25C3%25B1ol`, which is flagged as malicious. This indicates a phishing or malware distribution attempt, likely using the document as a lure. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the presence of embedded URLs and the redirector link are strong indicators of malicious intent.

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.ru/pify?keyword=ada+2020+diabetes+pdf+espa%25C3%25B1ol In PDF document text
    • http://samimas.slaterfamilylaw.com/uploads/1/3/1/3/131380213/kuvozefikekokonegul.pdfIn PDF document text
    • http://files.abbyfeiner.com/uploads/1/3/1/1/131164076/7020238.pdfIn PDF document text
    • http://files.dashpac.com/uploads/1/3/1/4/131411539/8652636.pdfIn PDF document text
    • http://files.cookiesthenmilk.com/uploads/1/3/0/7/130776757/f9d1d9583f.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/1/0433/5537/3720/files/bevikakikobiwugaxixiveko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/96819115041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/best_python_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/beginner_headway_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5419/5097/files/ranogunuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2919/9005/files/53423636150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7350/files/fabigaxawobajaxaweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/45497829035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/avant_garde_art.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9492/3677/files/tujofitawagasinumelevogaf.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 4

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_off00005f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 5556 bytes
SHA-256: 2e44ef9910c9c42822e8eb82b271303034c2e27536d93c75ddd408599f231297
font_01_sfnt_off000071c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C4 10656 bytes
SHA-256: 29f10650ba2bb664575dc0d5ebcc36e9ac7122a405e6653058a7b84f8cd83659

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