MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.com), suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains text related to a workbook, likely a pretext for the malicious links.
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/wb?keyword=ready%20for%20first%20workbook%203rd%20edition%20pdf In PDF document text
- http://files.c-nrl.com/uploads/1/3/1/6/131606260/lonevebof-budunun.pdfIn PDF document text
- http://files.portfolioinmotion.com/uploads/1/3/1/6/131637374/8d2f040022.pdfIn PDF document text
- http://files.saintjohnveinclinic.com/uploads/1/3/0/8/130814205/8074620.pdfIn PDF document text
- http://files.beabravo.shop/uploads/1/3/1/1/131163561/9035315.pdfIn PDF document text
- http://files.thecharestlab.org/uploads/1/3/1/4/131452991/xodopigif_wozutotiwes_muxosaxutagafa.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/1/0428/0621/4819/files/sisupimitek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0382/2755/files/lepexibezosatebagiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0471/4404/files/votevamaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28851780814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9546/5892/files/laxuvunavixakaxa.pdfIn PDF document text
- https://telabawogevo.files.wordpress.com/2020/06/jijekorameviba.pdfIn PDF document text
- https://logedogobevo.files.wordpress.com/2020/07/gebagavibud.pdfIn PDF document text
- https://nonegek.files.wordpress.com/2020/07/befibiwizokorulib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22700630349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8258/0130/files/29386045896.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4030/1478/files/ziriredaxudizir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3269/9292/files/kewefatofobuvepalanumuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7354/5116/files/dejekerifotuwome.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7102/0960/files/musopokaforarakur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7165/2508/files/49661234969.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5529/2322/files/20375461758.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_off000063ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63EF | 5360 bytes |
SHA-256: 728e291d248cbe856bea546ce3b2197fb20edbc5ddb9e634ea2126cf3e6f9efd |
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font_01_sfnt_off00007655.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7655 | 11064 bytes |
SHA-256: 88e730c2a83700b66524c1cf3a90ae21e4ce4e0dd7f7e5d3c54cf7613ee4e27c |
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