Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b78c812bdb0e255…

MALICIOUS

PDF

47.0 KB Created: 2020-08-23 02:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 530989416b585d3e3c994f8c1e2f6a0b SHA-1: f14c57e6ab329edacfe32bddda00303d11b9c7c4 SHA-256: 0b78c812bdb0e255566abfb0f3e22a97f74e76e7726d958bb11c2d01f9c2d649
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to malicious infrastructure, specifically a redirector at ttraff.com. The document body and heuristics indicate a lure related to 'heloc payment calculator excel template', suggesting a phishing or scam attempt. The presence of numerous external links, many pointing to Shopify domains hosting PDFs, further supports the SEO-based phishing lure.

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=heloc+payment+calculator+excel+template In PDF document text
    • http://dozulik.iconicplumbingtx.com/uploads/1/3/0/8/130814328/dogiso.pdfIn PDF document text
    • http://files.geologicalsocietyct.org/uploads/1/3/2/7/132710671/d21506.pdfIn PDF document text
    • http://files.pestcontrolfortworth.net/uploads/1/3/1/6/131637056/7505306.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/1/0430/5554/6517/files/xugogunirulifirax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/maths_formulas_upto_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7869/7631/files/santa_rampage_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7057/files/jalusujep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0133/files/bejigiguvoputode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/ceridian_online_pay_statements_tax_forms_epost.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/8004415041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/xewadirazalonoraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5262/8118/files/rexoxomunokibuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/cursos_de_ingles_avanzado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0091/2278/files/nusoromonema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4483/8303/files/thin_formica_sheets_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/7241162467.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_off000078c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78C8 5032 bytes
SHA-256: 440d85bd1ef1dad9005acae593e9be3399a5b18a1334b396d8cee86f4664c7f1
font_01_sfnt_off000089d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D2 10908 bytes
SHA-256: 80e2f64ae3417f84878aab8a467b537de0a37eefae7cc282c3b78f8ba68b8a53

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