MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to Shopify domains, which are likely part of an SEO link farm to disguise malicious redirects. The primary redirector URL, 'https://ttraff.cc/pify?keyword=estrategias+docentes+para+un+aprendizaje+significativo+pdf+libro', is flagged as malicious. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and link farm indicate a social engineering attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=estrategias+docentes+para+un+aprendizaje+significativo+pdf+libro In PDF document text
- http://files.rigorrelevanceandrelationships.com/uploads/1/3/1/6/131606198/8377340.pdfIn PDF document text
- http://files.penndmc.org/uploads/1/3/1/8/131860938/e9e88e61167ff.pdfIn PDF document text
- http://files.fnmiec.ca/uploads/1/3/0/9/130969710/7682567.pdfIn PDF document text
- http://files.rosamiliafornjea.org/uploads/1/3/1/3/131381046/eae383ab76ad.pdfIn PDF document text
- http://files.danspurearts.com/uploads/1/3/1/3/131380467/kabidadosamufix.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/1/0437/3449/9493/files/letekazavikopoxof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1241/3851/files/63394131617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1209/4109/files/pigezadobetutuxojiwepolef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4996/6998/files/sitedujobofapagunejosozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5272/0543/files/92166972719.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9868/6111/files/44909331065.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0383/8615/files/dubotelagatuju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1224/4134/files/gumepinuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4293/8784/files/poxugaxamilifemukibewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3053/6614/files/pikafuxulavafe.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F28 | 5488 bytes |
SHA-256: 163f7fc46132e39f15a04388085f8d521d0633a602623fb876f0bfdc51fbcd8d |
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font_01_sfnt_off000071e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71E9 | 10756 bytes |
SHA-256: 749e96f16c1b4d6c62ee6ccc3d277ec2da2554422a77096c0c6e1fe736eb9ed8 |
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