Malicious PDF — malware analysis report

Static analysis result for SHA-256 2575562cdfc8436d…

MALICIOUS

PDF

39.9 KB Created: 2020-07-29 11:03:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7878830cb77de6bb3319d51a74309062 SHA-1: b5c081a577dd206ef293a33d69f6709f4f9562aa SHA-256: 2575562cdfc8436d39010f6abb5add751f2264c703f7c7e5f689f94740bc70a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a malicious redirector link pointing to 'ttraff.com', which is a known malicious domain. It also exhibits characteristics of a PDF SEO link farm, attempting to disguise itself as a legitimate download for 'Alternating current circuits corcoran pdf free download'. The primary intent appears to be to redirect users to malicious content through the embedded link.

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.com/pify?keyword=alternating+current+circuits+corcoran+pdf+free+download In PDF document text
    • http://files.fpoworldwide.org/uploads/1/3/2/8/132814342/jimebu_pusuwetigelaveg_wifuseligudivo_rowiwajuwimogon.pdfIn PDF document text
    • http://files.provenpurpose.net/uploads/1/3/0/7/130775033/xanaf-xotovelataguji.pdfIn PDF document text
    • http://files.tumalofeedcosteakhouse.com/uploads/1/3/1/4/131406140/panevip.pdfIn PDF document text
    • http://files.meadowcovehoa.com/uploads/1/3/0/8/130815228/suliwapokikeduw.pdfIn PDF document text
    • http://files.gravattjewellery.com/uploads/1/3/1/8/131856105/3e05eabe.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/1/0429/5920/8604/files/58882928166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/98518955359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/16778294297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/japevijizedabanele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2775/9257/files/xudifebekinufezilulezemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewobaropelizovijekozuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/94196779639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/siwab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/domimajinikemap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1987/7024/files/jeporena.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 6

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_off00005da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA1 5284 bytes
SHA-256: ddf9f518831e86141ecc09f61d6ba0600b777aab75e7c041a58f811c6a50288b
font_01_sfnt_off00006fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB3 10052 bytes
SHA-256: be9b4f6c157ca2e3e0f6478fe1a86ef7c66655db4ee3e664abf50da7836fe17a

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