Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e16b6445362755…

MALICIOUS

PDF

48.6 KB Created: 2020-08-09 19:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f777e2d5df8b2aeb5c348181d7cb77d SHA-1: baa236bbb5cfcb492921e0cc6901958cc3c86ff6 SHA-256: 93e16b6445362755cd1b8ed712e0e7d37cbb28b2469472438edd3aa9d75c750b
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external resources. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that at least one of these links redirects to known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a mass of external links, likely for SEO manipulation or to distribute malicious content. The primary malicious activity observed is the redirection to potentially harmful URLs.

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=funciones+endocrinas+y+exocrinas+del+pancreas+pdf In PDF document text
    • http://files.doordoodles.com/uploads/1/3/0/7/130775135/nitokez_lewewar.pdfIn PDF document text
    • http://jasaw.analisemcmanusphotography.com/uploads/1/3/2/7/132712358/tozowituzusitivimu.pdfIn PDF document text
    • http://files.restorehopeliberia.org/uploads/1/3/1/3/131384127/dudavepu.pdfIn PDF document text
    • http://files.jeeeunhong.com/uploads/1/3/1/4/131408970/nujelajur.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/1/0431/5014/7733/files/71352533732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8768/1952/files/51817385140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/pojufexewokasalidabejulam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/49938028674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/12102474704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/files/66883735758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5280/files/70671753835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1546/1285/files/79877784138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/wixidavomaruvukenukav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/american_gods_episode_3_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0941/7127/files/fovojuzinixasigemimidon.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 6

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_off00007b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B70 5276 bytes
SHA-256: bd15906ae45171db454820a2b9aa548a3574478194fa43cf4046953554c02a14
font_01_sfnt_off00008d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D81 11564 bytes
SHA-256: 19b40a024add08dbbc457232baca9ad9429150e74311801649be757b77b25b97

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