MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=converting+proper+fractions+to+improper+fractions+worksheet'. This URL is presented within the document body, disguised as a worksheet, suggesting a phishing or malware delivery attempt. The document also contains a large number of embedded links, many pointing to Shopify domains, which is flagged as a link farm. The primary malicious IOC is the redirector URL.
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=converting+proper+fractions+to+improper+fractions+worksheet In PDF document text
- http://gupubab.survivalbetty.com/uploads/1/3/1/3/131384709/4175147.pdfIn PDF document text
- http://saxudit.lincolnstation.org/uploads/1/3/0/8/130874540/naruzizekapujem.pdfIn PDF document text
- http://files.10000wordsphotography.com/uploads/1/3/1/4/131406977/nokazusew_vopuvobili_sosinoxakoxawig.pdfIn PDF document text
- http://files.wdmoc.com/uploads/1/3/0/7/130740443/tejovasoxuxo.pdfIn PDF document text
- http://files.trailbrake.us/uploads/1/3/1/3/131381518/wogorunaf.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/1/0429/5737/3589/files/timulosad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4055/5676/files/ponirogolutoluxav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3415/7991/files/jawiketulejusojexafunuvul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3572/8794/files/cll_guidelines_nccn.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6820/3942/files/51067434134.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8948/4190/files/xekusosefipid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2520/3354/files/algebra_formulas_cheat_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0576/9888/files/mupisegevawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3033/1040/files/vixonitigu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/34506905592.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2121/9493/files/92608514389.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6089/5650/files/four_year_high_school_plan_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0145/4500/files/ck2_agot_download.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_off00005e6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E6C | 5516 bytes |
SHA-256: 736b7d13f32320d8d110afd2d5efcb4dbfac3902e4ed557d93ec827a464e7d41 |
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font_01_sfnt_off00007124.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7124 | 9816 bytes |
SHA-256: 163177dd6df02d3457358bce8e4cc2a404a6128fc81cc637a08f671486b10adc |
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