Malicious PDF — malware analysis report

Static analysis result for SHA-256 a35f89e6d71a40d1…

MALICIOUS

PDF

41.3 KB Created: 2020-08-07 09:21:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0415043eda77550c43e794367be305bf SHA-1: 4253a7aa90e65f9dde958b6743274e27892bcee5 SHA-256: a35f89e6d71a40d1ca28b18b91e872280b2120db4f3e4965845d0db9fcb8bf00
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=human+fetal+circulation+pdf'. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the link farm and redirector strongly suggest a malicious intent to lead the user to harmful content.

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=human+fetal+circulation+pdf In PDF document text
    • http://files.thehappyplacecafe.com/uploads/1/3/0/8/130874213/bozamigu.pdfIn PDF document text
    • http://files.magdalenasevcik.com/uploads/1/3/1/6/131637503/xuwojep.pdfIn PDF document text
    • http://files.hopemdunbar.com/uploads/1/3/1/3/131378993/8703339.pdfIn PDF document text
    • http://dokukeba.bardswine.com/uploads/1/3/0/7/130776542/furixaniboroku-bosibumojow-xujudad-kudojus.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/1/0438/2697/0786/files/calendario_scolastico_abruzzo_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6984/0283/files/31999493586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2121/9493/files/28898189519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1056/3994/files/34429462459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/jokile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/47375107517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1758/5308/files/formula_auditing_in_excel_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7188/7767/files/kejigidinofide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/asvab_mechanical_comprehension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7595/2030/files/44391134146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/69288777219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7506/6274/files/8838291493.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 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_off0000652d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652D 5084 bytes
SHA-256: aa44ce1bfdbb7c1651a77db0792ce80a70eb7292fa933587b3d16d2bab0b58ed
font_01_sfnt_off0000765f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765F 10048 bytes
SHA-256: 15dd61c70599a618e85e2d5eae4637ee082b0302791793bb7aeb8d12653c97ce

Open this report in the interactive analyzer, or submit your own file for analysis.