Malicious PDF — malware analysis report

Static analysis result for SHA-256 54187f3d3c485da6…

MALICIOUS

PDF

42.2 KB Created: 2020-08-17 14:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef503ef6bb68d1af569c733ada6e3efd SHA-1: a2892ed1b4753e6240d8622f6cb140704872132e SHA-256: 54187f3d3c485da6cf056ae5505ad117b7d3f8ec67c359881ccd30e5fad98c12
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to a 'Gopro hero 7 black spec sheet'. The PDF also hosts a large number of external links, many pointing to Shopify, which is flagged as a PDF link farm. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.

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=gopro+hero+7+black+spec+sheet In PDF document text
    • http://files.maplegrovemusicaltheatre.com/uploads/1/3/1/0/131070845/bogufus_kugevodopu.pdfIn PDF document text
    • http://zevedud.sciencewithmorris.com/uploads/1/3/1/4/131483154/fowaruvuxulan_sikisukigakob_kizisole.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/1/0440/2036/7510/files/manezurosena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4885/3926/files/wufeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0511/6575/files/zovadejuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/iqra_primary_school_bradford_ofsted_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7866/4867/files/muxirujajexudefavurapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/segijodomopetoxifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8644/6746/files/whimsyshire_diablo_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2173/files/uniform_building_by_law_malaysia_latest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/soliganubisaweduwuworibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/zosisatepitakuwel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0210/0899/files/33646948101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9502/9915/files/22397989105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/collocation_information_in_marathi.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
🗂 Part of campaign: maplegrovemusicaltheatre.com 3 samples

Related samples 2

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_off00005b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B81 5336 bytes
SHA-256: 882ee212710f41636a3ead3050b0e148d2b4029e42000df41c79264e3e1bce71
font_01_sfnt_off00006da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA2 15176 bytes
SHA-256: 4938613f5833b8e2773122428aff8950e46a89d5413c331f88acec97437b92e4

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