Malicious PDF — malware analysis report

Static analysis result for SHA-256 880095f13dddf8fb…

MALICIOUS

PDF

47.5 KB Created: 2020-08-02 15:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30639b4e75bf835a51ee477dd98a698f SHA-1: 36705fe4e38840476136ca50f98a2b76452e7edb SHA-256: 880095f13dddf8fbe2df4d37e224e9e2efc8de61ae0ce12bc8755652f244bb60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) and a large number of PDF files hosted on Shopify. This indicates a link farm or phishing campaign designed to drive traffic to potentially malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of an attack.

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=python+count+list In PDF document text
    • http://files.mojoecafe.net/uploads/1/3/1/8/131872273/d6040ac4dcf2.pdfIn PDF document text
    • http://files.kentmcfann.com/uploads/1/3/2/6/132695629/zoridub-tosirumifagifek-zunovodexudib.pdfIn PDF document text
    • http://files.fatutoanutrition.com/uploads/1/3/1/3/131398154/gerileve-tijaxejor-fegajozolewaw.pdfIn PDF document text
    • http://files.elizabethashdown.co.uk/uploads/1/3/1/3/131383426/8648151.pdfIn PDF document text
    • http://files.cruiseandtravel.eu/uploads/1/3/1/8/131858045/3ef87dd1a51.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/1/0430/1121/1425/files/manosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/15168169383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/32672556573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7162/files/jagurodopigobomawakupuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/72093494144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8384/8097/files/67542128582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3856/2712/files/xupolexabiwerusozobire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/ispostback_in_asp_net.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/dojazuzatumubenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/91969487679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/bagisokexep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/pimuzefitujatuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/putawapu.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_off0000731e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731E 4684 bytes
SHA-256: 926b9aada78cd6e46e20ab14261cd817593985b345d45fc0c636a128b440dae9
font_01_sfnt_off0000831b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831B 14484 bytes
SHA-256: d66861c39c8e9a86bcc5061373a94aa8cb7bbdcbba1aab31bb26dcbcc8c4efc0

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