Malicious PDF — malware analysis report

Static analysis result for SHA-256 918d6bb4c36bfb76…

MALICIOUS

PDF

42.1 KB Created: 2020-08-07 17:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 458c5ad36e9739db67c934045d65658f SHA-1: 3d806bf369b19a1ccd9753ae2f9ea65b477e77ee SHA-256: 918d6bb4c36bfb767d7fd3449d7f7c171e91ff586f3b649e0d0d1f85709c2631
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at https://ttraff.cc/pify?keyword=haunted+heartland+pdf. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=haunted+heartland+pdf In PDF document text
    • http://files.fightnightblog.com/uploads/1/3/2/6/132681664/fufefesik-tuxuj-noligugafe.pdfIn PDF document text
    • http://mubadoku.floydhicks.com/uploads/1/3/0/8/130873851/595093.pdfIn PDF document text
    • http://files.sweetwaterequestrian.com/uploads/1/3/0/8/130813325/8854696.pdfIn PDF document text
    • http://files.blusheventschicago.com/uploads/1/3/1/4/131410007/fopigijuted-zovop-wimeselana.pdfIn PDF document text
    • http://files.createleadersnow.com/uploads/1/3/0/7/130740249/2181253.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/1/0434/7055/3238/files/rojamax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/pozinediwegibedeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/mujoleri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27984898694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/jebogowemugumosit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/inversion_after_negative_adverbs_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/61949938759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7622/3129/files/73440672054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0432/files/33107398102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0897/4235/files/4549356377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5488/3231/files/64736911645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/jexenosi.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 8

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_off0000666c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666C 4912 bytes
SHA-256: 39d78bbe95ff2a1c24f872b79c0080f21d8a625de0523bfe413af5f37500eab2
font_01_sfnt_off00007717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7717 10780 bytes
SHA-256: 591dae0bb85ef44e8b5314b631ebac5f0c98f500391d9f9fe0e9a486b559ce9e

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