MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous links designed to mimic search results, specifically for "asvab paragraph comprehension pdf", leading to a redirector URL. This redirector then points to various PDF files hosted on Shopify and other domains, suggesting a phishing or malware distribution scheme. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-optimized links points to a coordinated effort to distribute malicious content.
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.com/pify?keyword=asvab+paragraph+comprehension+pdf In PDF document text
- http://files.icttg.com/uploads/1/3/0/8/130814205/7126333.pdfIn PDF document text
- http://files.treekintrove.com/uploads/1/3/1/3/131381679/fujabav_pawatififuva.pdfIn PDF document text
- http://files.greateragapedeliveranceinternationalchurchinc.org/uploads/1/3/2/7/132710783/2119179.pdfIn PDF document text
- http://zivavif.grassyknollfarm.com/uploads/1/3/1/0/131070718/27bdc089.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/1/0429/8512/8090/files/bogaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/pesiwedos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9780/1375/files/pozipetuxivawetobikibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0426/4602/files/54774854414.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7556/7777/files/9983839650.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8131/1132/files/77812385315.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0326/4667/files/biocontrol_agents_and_biopesticides.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3240/4380/files/tuxosulewedazas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7945/1295/files/you_can_t_hurt_me_david_goggins.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1050/5373/files/95397339293.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/xuwanesufiraguruposox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4783/6065/files/malos_habitos_alimenticios_en_universitarios.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_off0000698f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x698F | 5728 bytes |
SHA-256: fe3d26fde4682772f507ea52f3d72cd7510f5c0812f66f4b767dcaebe6b561aa |
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font_01_sfnt_off00007ce0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CE0 | 10688 bytes |
SHA-256: 1fbad2c0e055be51ac1f865a524c41eb98a3631c5172e87894698b676a28ed2e |
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