Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dffdd1c8b5962ae…

MALICIOUS

PDF

72.5 KB Created: 2020-08-04 03:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed0693f744dbcba656e4626e25fe7113 SHA-1: d1e712565df6ee043a45b49fced5cd66dec205b6 SHA-256: 7dffdd1c8b5962ae5c5647cbc42fc9e85e5ca5ed638f4d5e22647aaed41acc8c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is `https://ttraff.ru/pify?keyword=anxiety+disorder+research+pdf`, which is flagged as malicious. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to malicious sites. No scripts were extracted, but the structure and link farm indicate a malicious intent to redirect users.

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=anxiety+disorder+research+pdf In PDF document text
    • http://files.johnhenryiii.com/uploads/1/3/2/6/132682663/riligolajim_juwubikofiki_sukeg.pdfIn PDF document text
    • http://files.therosecottagestudio.co.uk/uploads/1/3/1/4/131483265/2499566.pdfIn PDF document text
    • http://files.prairiedogpottery.ca/uploads/1/3/2/6/132682076/80456802629f5.pdfIn PDF document text
    • http://files.preciousgemminis.com/uploads/1/3/1/0/131070336/disirifelonafewu.pdfIn PDF document text
    • http://files.somersscienceresearch.com/uploads/1/3/0/9/130969986/2792853.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/1/0431/1502/0448/files/sepirew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/wunavira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1808/4771/files/hookah_bar_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/88629542462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7591/1321/files/sejufojajakari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/72201673290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0919/files/kojalebejewezabowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7422/3269/files/waroxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/tuwadutir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/91874249329.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 7

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_off0000da95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA95 5372 bytes
SHA-256: b870f444c7d765435da581491a5294272a2437306e8c6f5e2a1a833509eeb284
font_01_sfnt_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 11772 bytes
SHA-256: a291f45e2e515c111d3f8996c9aa1d14a13a2b6264c9f30dee180306dec31ba5

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