Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bb11a39a0b5b4b…

MALICIOUS

PDF

46.0 KB Created: 2020-08-14 12:51:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1c90a44f3b2c9d6e074586e147a0fcc SHA-1: c65f9fe80160ce4d04a799d1e992e2ed8a1fbe95 SHA-256: d6bb11a39a0b5b4b6ee1f8c0bac0831f9b009c9c45bf37705086a95a3020c7f1
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed to appear as a free template download. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the presence of malicious redirector links and a link farm. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

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=free+timeline+presentation+template In PDF document text
    • http://tagefu.nobordersmun.com/uploads/1/3/1/0/131070161/1275045.pdfIn PDF document text
    • http://files.bannisterrunning.com/uploads/1/3/0/8/130874026/7915608.pdfIn PDF document text
    • http://files.willhumegames.co.uk/uploads/1/3/1/6/131607063/3329941.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/1/0433/9941/3925/files/78587072957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/viritod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6165/8279/files/78543373029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/arrhythmia_mechanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/the_cardiac_catheterization_handbook_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/legagolad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/zibubemuwubene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8540/2013/files/self_declaration_in_prescribed_format_refer_annexure_e1_hssc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7188/7767/files/49940898350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/43032835601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/87689447818.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 5

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_off0000775e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775E 4920 bytes
SHA-256: 63543b379200a5ad3baa7f86e79ce2b6d8b1f174b59f4eba81175e0674eb7385
font_01_sfnt_off000087f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F8 10152 bytes
SHA-256: c76c9ba90e7d491ae03ecf9fe3e803b0ae0f8be4d26efdbfd07a24879d77ca2b

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