MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, including a primary link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting it is an 'electrolysis equations worksheet', likely a lure to encourage clicks on the malicious link. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a link farm designed for malicious redirection.
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=electrolysis+equations+worksheet In PDF document text
- http://files.jefferyedoherty.com/uploads/1/3/1/3/131380058/1610684.pdfIn PDF document text
- http://mosesub.stcatherineschurchlittlehampton.org/uploads/1/3/0/7/130776433/budolazifi_nodezedaviro_kosob.pdfIn PDF document text
- http://files.sarasotapaversealing.com/uploads/1/3/0/7/130738892/bajugivo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0461/4337/3480/files/simplicity_pattern_measurement_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2541/3782/files/aptitude_exam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7863/8999/files/91373192918.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0246/9285/files/85568278549.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/47371776509.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3516/4835/files/glee_loser_like_me.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/3635/5232/files/wachteln_brten.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8153/0534/files/social_entrepreneurship_ppt_templates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7926/1590/files/vemobixiraduteledafofos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8764/3302/files/55902352084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0461/5066/files/71872802066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8200/7199/files/28710076854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8921/6167/files/jigoroxipew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8933/0325/files/vizogekiz.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005552.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5552 | 5108 bytes |
SHA-256: 6ef8a25c55ffe7bf58d3043a4db807aa1c22be3cd226b1de28441fc1eefa4169 |
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font_01_sfnt_off000066bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66BF | 10212 bytes |
SHA-256: 23412e0d851537a618356e80620db57e3cc9594e4f1f10b4db634eed70176b13 |
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font_02_sfnt_off00008963.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8963 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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