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) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a lure for 'business mathematics notes', likely to trick users into downloading further malicious content. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector confirms a phishing or malware distribution attempt.
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=business+mathematics+notes+for+b.+com+2nd+year+pdf In PDF document text
- http://mopojap.lessonsofalac.com/uploads/1/3/2/3/132303035/33966.pdfIn PDF document text
- http://files.caeciliesvensson.com/uploads/1/3/1/4/131438079/bafitoju-larajoweko-filuzefagetebam-bapufel.pdfIn PDF document text
- http://files.wvswma.org/uploads/1/3/0/7/130739288/vukogotutifived.pdfIn PDF document text
- http://files.heatherbrittonphotography.com/uploads/1/3/0/7/130775053/pokudo-dukekokoze.pdfIn PDF document text
- http://files.vishmaya.com/uploads/1/3/1/6/131607075/af9878ce5.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/1/0435/0106/0262/files/58701637724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4591/0678/files/25725477302.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4352/8609/files/xakekalisunenoka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5797/8273/files/lavuxufez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8012/2532/files/3312834803.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4202/8190/files/lewejitipodifular.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2992/0930/files/bedtime_bible_story_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9066/3832/files/59340109010.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5403/0231/files/zukinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5162/2305/files/gibufazifupure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/5622662358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5326/0700/files/gazidadedawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4894/4295/files/vapivize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9353/2573/files/25126016940.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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_off00006ac6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AC6 | 6744 bytes |
SHA-256: 048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4 |
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font_01_sfnt_off00007bab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BAB | 5816 bytes |
SHA-256: 4d4fee3ff52a1db7b01e2776348545738831c83c5f9c394f6fa5536f08c3b36c |
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font_02_sfnt_off00008f60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F60 | 10312 bytes |
SHA-256: 7a15e97e552fe791564c67dfa558b804cfa653298dda4ee9ac25f0d875fb619c |
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