MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is further reinforced by the ML classifier's high confidence score. The document body, though heavily obfuscated, contains the primary malicious URL and several benign-looking URLs, likely intended to appear legitimate. The primary malicious URL is `https://ttraff.com/pify?keyword=pdf+books+free+download+in+sinhala`.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=pdf+books+free+download+in+sinhala In PDF document text
- http://files.wildflowerphotograph.com.au/uploads/1/3/0/7/130738914/5d57e43dfe20.pdfIn PDF document text
- http://files.christhamilton.org/uploads/1/3/2/7/132710627/699823.pdfIn PDF document text
- http://pirivodu.whitecoatantidote.org/uploads/1/3/0/8/130814328/zawiwafiromafakafili.pdfIn PDF document text
- http://files.alysebensel.com/uploads/1/3/0/7/130739112/niwizafegidome.pdfIn PDF document text
- http://sezawiwe.beckfordmedicalcenter.com/uploads/1/3/0/7/130775732/xoragore_boponusidabotu_diwovomif.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/1/0440/7836/6885/files/contoh_skripsi_akuntansi_perpajakan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutowoterefabobenovise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7641/8720/files/rainmeter_temperature_skin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9954/3970/files/gebisetosevisukibebefowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7668/8798/files/wii_u_rom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9844/7778/files/download_teks_asmaul_husna.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9812/0096/files/luwelenage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/27447191767.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6627/8556/files/bibimonelufurujif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0766/2504/files/21770312771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5820/8672/files/mofotovu.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
- http://sinhala.sourceforge.net/In PDF document text
- http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
- http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005937.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5937 | 5292 bytes |
SHA-256: c098b8c997d8ce976489f979227e3bbfab4143125e29cc04edbe34677ec84741 |
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font_01_sfnt_off00006b04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B04 | 18176 bytes |
SHA-256: e41f235bb9d54ae7fc4d39153ee429a9db12c4e861ffb4c54d506ae3ce3a8e83 |
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font_02_sfnt_off00009848.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9848 | 10756 bytes |
SHA-256: 95735afa6898ffa833c487eb1c0d26ce1768fde90411fa5e8137ed71e467ecc7 |
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