MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of embedded links, masquerading as free downloads for educational materials. These links redirect to a malicious infrastructure, specifically a redirector at 'ttraff.cc', which likely serves further malicious content. The ML classifier strongly indicated maliciousness, and the presence of a link farm and redirector points to a phishing or malware distribution scheme.
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=reading+comprehension+worksheets+high+school+pdf In PDF document text
- http://files.jorgegomezelizondo.com/uploads/1/3/1/8/131856392/rebaj_sifonunolosoxaf_bigorujixuzote_vimeximog.pdfIn PDF document text
- http://files.babesintoylanddaycare.com/uploads/1/3/0/7/130776208/f8bd23b7ea63e7.pdfIn PDF document text
- http://files.ogrowneyns.ie/uploads/1/3/0/9/130969080/zemusinereg.pdfIn PDF document text
- http://files.dumbingdownamerica.net/uploads/1/3/1/4/131407552/nupibu-nefusolo-mibajokaro.pdfIn PDF document text
- http://files.bambooble.com/uploads/1/3/0/8/130814611/faxowafun.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/1/0430/7245/4810/files/unity_swipe_controls.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikakaxudote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9715/3943/files/basic_english_grammar_tutorial_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9169/3463/files/dubai_expo_2020_master_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7087/4009/files/kha_zix_probuilds.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7944/1307/files/84481599958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8631/5671/files/69718555086.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6397/4805/files/47940812830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/raduvij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0057/6669/files/time_wasted_on_league.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9977/4364/files/lidipirufomiruk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4656/8098/files/wodilaxoweb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2977/3982/files/55853884789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0840/0280/files/encuentros_maravillosos.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_off00006747.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6747 | 5732 bytes |
SHA-256: f876e4139a73f3ee7570bade9250b9382bb38efaeb3672f86c30d9892cffa8eb |
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font_01_sfnt_off00007abc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ABC | 10132 bytes |
SHA-256: 5f8ea00d0451a0b26e847eb349c6bf850057255f609b8394555b67c02cace665 |
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