Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd12b8f79be615d9…

MALICIOUS

PDF

47.2 KB Created: 2020-08-09 10:47:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80cef1bf4453cfc01b76c734283e7ab6 SHA-1: 746e88fc8a8033bfb3c8b12ed0c66f2feb42d0fa SHA-256: fd12b8f79be615d96c277bbf8c10087dda5e0fc07d5b4baadc608754a909b537
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate this PDF is part of a link farm, likely designed to distribute malicious content or phish users. The primary malicious URL identified is https://ttraff.cc/pify?keyword=albacea+pdf+peru.

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=albacea+pdf+peru In PDF document text
    • http://files.dennishorseshoes.com/uploads/1/3/1/0/131070202/99cd95cf434f96.pdfIn PDF document text
    • http://files.brockportmall.com/uploads/1/3/1/0/131071312/mubexabuzugixo.pdfIn PDF document text
    • http://deperevo.heugafoundation.org/uploads/1/3/0/8/130874493/1452820.pdfIn PDF document text
    • http://files.shadylanefarm.store/uploads/1/3/1/4/131437953/materef-raxawubilosabik.pdfIn PDF document text
    • http://files.mnconference.org/uploads/1/3/0/7/130738892/vogejuxov-zuwuxiz.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/1/0431/5542/3383/files/82136760026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/vomeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/cognitive_dissonance_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/35034980678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7565/7121/files/centrifugal_pump_performance_curve_explanation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/16741451795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/tuvafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/stardew_valley_skull_cavern_elevator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/2997/files/44181791213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/nujidisitilok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/mp3_rocket_5._0_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/23056578139.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_off00007bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBD 5100 bytes
SHA-256: 9cb2b1fe5743f71f743a0c807ea527b007aeb0cefc5c1e3b1a05f5106de6eed6
font_01_sfnt_off00008d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D25 10360 bytes
SHA-256: f4240cd78dc3b74ea7c93889ebfff97fd6eaea2dd4a95bd100446c1a432d672c

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