Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2dab7fdb22870db…

MALICIOUS

PDF

41.6 KB Created: 2020-08-09 17:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b158a16eab5dec642e332fd74b188fd SHA-1: d68354b52dd93da032ae46bd51e49fa07a459f9f SHA-256: b2dab7fdb22870db6a385cb53f8bc9286a3d161f767df5398a86d2ddba553619
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains text related to electronics projects and the malicious URL, suggesting a lure to entice users to click. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. The ML classifier strongly flagged this PDF as malicious.

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=homemade+electronics+projects+pdf In PDF document text
    • http://benusave.reverieastrology.com/uploads/1/3/2/6/132681352/beburoxilizepaz.pdfIn PDF document text
    • http://files.avedoniaart.com/uploads/1/3/1/1/131164236/suwuje-zivawejokaweni-desesubesig-nupodobo.pdfIn PDF document text
    • http://files.azrya.com/uploads/1/3/2/8/132814611/monamuju.pdfIn PDF document text
    • http://files.theoffsideflag.com/uploads/1/3/2/6/132695321/03a74ea90e.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/1/0433/4800/0927/files/xebufamawud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/safuginogatujato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/disha_publication_child_development_and_pedagogy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/bovikularapipujadojabipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/34324379169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/anomalous_hall_effect.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/45349432364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/libro_annabel_lee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/6456134165.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_off00006494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6494 5340 bytes
SHA-256: 2c5772c23d2bb595abec54ca317e0062358a707c26c5abe78a2da2bbde80611b
font_01_sfnt_off000076a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A3 10224 bytes
SHA-256: f8c21fe42da38e46c8c417a77789c5de8a7fd8d4049596b2c8e529b1f491440e

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