Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5f15151c76550e7…

MALICIOUS

PDF

44.1 KB Created: 2020-08-06 17:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0b314fc7f25f65c7fdffed77dba5653 SHA-1: 7d644f0901df1d087072cbd6be06d28e72e9a4ea SHA-256: d5f15151c76550e7db06ef16300bf1d09f4916f54598266b85a202d1b71b2057
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a technician job description. The document body also contains numerous links to external PDFs, suggesting a link farm designed to manipulate search engine results or distribute malicious content. The ML classifier strongly indicated maliciousness.

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=technician+job+description+pdf In PDF document text
    • http://duxojoma.iamnotmylaundry.com/uploads/1/3/0/7/130739024/9d5ae22b84d.pdfIn PDF document text
    • http://razepoki.elizabethlaude.com/uploads/1/3/1/3/131380429/1766588.pdfIn PDF document text
    • http://files.grand-beginnings.com/uploads/1/3/0/7/130739117/gebugi.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/1/0431/8691/3431/files/97584103310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1210/1020/files/pdf_to_autocad_converter_free_download_with_crack_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/betijojakagepirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/99362685709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/44681070461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6522/1028/files/gujemetadesitenegalapebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/76150416654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7174/files/85979953880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/attestation_de_fin_de_stage_en_entreprise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2359/5677/files/tulebexoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/dipiremirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/obsidian_armor_terraria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/power_cooker_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0123/3053/files/82500846256.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 3

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_off00006e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E83 5376 bytes
SHA-256: 89a4ae979045baf551dbee343c450373c150b6827b4b1136edcb75ccc927b434
font_01_sfnt_off000080be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BE 10168 bytes
SHA-256: f5e0476774eb8c5d8363e3d8880df7efaa67702d1db3c4aeff832228e3a353cb

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