Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9299e9f5e8f306…

MALICIOUS

PDF

43.3 KB Created: 2020-08-07 15:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df10ff1ba990104752ca7f306fb6d875 SHA-1: 871cf57af64115c02eb17150028b0004fca72630 SHA-256: 4e9299e9f5e8f3061b4ea668b97f3d1ad1bd3c7de2e21edb09391098e1442932
194 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, ttraff.com, disguised as a download for 'Angularjs 2 pdf download'. The document body and numerous embedded URLs suggest a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=angularjs+2+pdf+download In PDF document text
    • http://files.graceadvisors.net/uploads/1/3/1/4/131483027/861982.pdfIn PDF document text
    • http://files.rebeccagrahamgallery.com/uploads/1/3/1/6/131637570/rosowewaxikegul_fimer_tasosi.pdfIn PDF document text
    • http://vomod.gvslha.org/uploads/1/3/1/4/131454065/wigeduruduvalo_nenopifana_rizujo_sodaxuwovebiz.pdfIn PDF document text
    • http://files.fiveopen.com/uploads/1/3/0/7/130739072/sazazis_vadaxuzazejuge.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/1/0434/6576/9110/files/lajamisudevikatiraguduga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0311/5680/files/21088728881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3775/1453/files/mobekosaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6377/0272/files/49329541995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/87979353376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/kovofigalufile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/kokatotixoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/25868600159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7546/files/twentieth_century_analytic_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/dotuxobed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/blob_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/69113292362.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 4

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_off000068b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B0 5496 bytes
SHA-256: 08f9508dddf2331228ea15a8df768cbc4ed4b53807fe22d0e8c6c5299ed7f984
font_01_sfnt_off00007b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B91 10832 bytes
SHA-256: 8977988ec1eabae0624d11884d72d11e08452d7134e82b67d9a3c457403f95e5

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