MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a large number of external links, many pointing to Shopify domains, which is indicative of a link farm designed to improve search engine rankings for specific keywords. One critical heuristic identified a link to a known malicious redirector (ttraff.cc) disguised as a book download search result. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains metadata related to wkhtmltopdf and a date, suggesting it was programmatically generated.
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.cc/pify?keyword=che+guevara+books+in+tamil+pdf+free+download In PDF document text
- http://files.4lawsfamily.com/uploads/1/3/0/8/130874588/xuguwukob_kotejipalabo.pdfIn PDF document text
- http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdfIn PDF document text
- http://files.taranakiequestrianjumping.com/uploads/1/3/1/6/131637108/mukafikinorovof.pdfIn PDF document text
- http://files.laborwlove.com/uploads/1/3/2/6/132681670/nakekorigibiveteven.pdfIn PDF document text
- http://files.anniezasadny.com/uploads/1/3/2/7/132740414/joridudinujuva.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2217/8710/files/29762354803.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5214/6586/files/zibowosakefi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7297/0133/files/9746766411.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5583/1445/files/gaporuzot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5424/1694/files/52313288925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/katolase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4365/9677/files/49869597764.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5815/9006/files/86342330387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9174/5175/files/rizatorasedobamabatobim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9832/5663/files/baboxizozabanebosegel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000059d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59D8 | 5716 bytes |
SHA-256: 18216af29503a1becc1c81ab12f848e331b7b97277db8753e12fc8e0a0ef50c1 |
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font_01_sfnt_off00006d36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D36 | 3344 bytes |
SHA-256: 4268366b7f20943c26823d979657427c4d213034046da90b3a7c0ed1645c1817 |
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font_02_sfnt_off00007a46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A46 | 9948 bytes |
SHA-256: 21183afddd4422f7f4734e1702cb347f0f0d59c4f57cb0f1ef52baed9779898f |
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