Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff5c395fff4bf015…

MALICIOUS

PDF

45.4 KB Created: 2020-08-12 10:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56f299a3eb85a0e71cccd1810ec35b76 SHA-1: 7ca5be9e5a90ce6756c861f98c3fc3d6300fa485 SHA-256: ff5c395fff4bf015fcdac14cdeecab3d1132c8b996a0e16100ffca4bee4244d3
202 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, disguised with a keyword suggesting a passport application form. The document body, though heavily obfuscated, also contains the same malicious URL and numerous other URLs hosted on Shopify, likely as part of a link farm to improve search engine ranking for the malicious lure. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=passport+application+form+kenya+2020+pdf In PDF document text
    • http://files.racheleveholmes.com/uploads/1/3/1/3/131398515/fijasonav.pdfIn PDF document text
    • http://files.deepgreenbushschool.org/uploads/1/3/2/6/132680808/5873391.pdfIn PDF document text
    • http://files.arcmowercounty.org/uploads/1/3/1/6/131606666/dc4af4da.pdfIn PDF document text
    • http://files.destinyhorses.com/uploads/1/3/0/9/130969172/kegik.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/1/0434/2287/5797/files/47154683202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9578/files/upsc_ifs_botany_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6628/5462/files/45342715560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/85040989252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53981477141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/45083002754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/10437927267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/7515533387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/ansi_asq_z1_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7666/2934/files/cero_absoluto_allan_folsom_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/movimiento_circular_uniforme_formulas.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_off00007151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7151 5740 bytes
SHA-256: 871e0fa80ffe6e2356e694277d745a9faf820ca38ad89bf2b875230301335872
font_01_sfnt_off000084d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D3 10404 bytes
SHA-256: c037f3a6343fe40055e356b0f7a27c99fbb9db1d5b924ed9aa9215ce789fd43e

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