Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ccb592624c05d7…

MALICIOUS

PDF

39.8 KB Created: 2020-08-06 12:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71af69b8afc9933bd55327f2f191ffa0 SHA-1: 30d28870278200b2b12347a478f618430c8442ce SHA-256: 14ccb592624c05d73620997fb716029e4770c4c9275e8ee01c8347e908145b20
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, likely as part of a phishing or scam campaign. The document body text and heuristics indicate a lure related to a 'medical fitness certificate for joining new job pdf', directing users to click on the provided link. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=medical+fitness+certificate+for+joining+new+job+pdf In PDF document text
    • http://files.elliottacrestherapyriding.org/uploads/1/3/2/6/132695332/1464697.pdfIn PDF document text
    • http://files.lascolinaspsych.com/uploads/1/3/2/7/132740623/2e1b4de738.pdfIn PDF document text
    • http://files.adishsingh.com/uploads/1/3/1/3/131380471/xudexexono_nubemijadef.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/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3197/5320/files/70293516159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2748/1255/files/weribetoxodiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/85278298794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/catlogo_natura_ciclo_9_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/gatanosolomut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/dumixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/php_round_up.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/42817124767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/35031129159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1524/1891/files/60957753744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/multiple_roles_plugin_wordpres.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_off00005d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D61 5636 bytes
SHA-256: 45680a1457250557248219dea257bc96a668d42e46dabe604e88a9c6eff36b87
font_01_sfnt_off000070b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B8 9804 bytes
SHA-256: 2d260956b821c4ff8c5f7d76a2a6ca38780ffa8095173beb38477c1778c927c1

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