MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF file contains a link farm and a direct link to a redirector URL, indicating a phishing or scam attempt. The primary malicious link is https://ttraff.cc/pify?keyword=aircraft+structures+for+engineering+students+5th+edition+pdf, which is designed to lure users to a malicious destination. The document body, though heavily corrupted, contains text related to engineering textbooks, likely a pretext for the malicious link.
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=aircraft+structures+for+engineering+students+5th+edition+pdf In PDF document text
- http://files.cochranechildcare.net/uploads/1/3/2/8/132814168/6937318e9d.pdfIn PDF document text
- http://files.mod-el.org/uploads/1/3/1/3/131380305/5515673.pdfIn PDF document text
- http://files.arnprioranimalhospital.ca/uploads/1/3/0/7/130740517/a30d1b44.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/1/0434/6665/3858/files/c_subset_of_vector.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2191/0687/files/77788454817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2328/6940/files/rizalowagajufile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6015/8873/files/17174774061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4903/3627/files/35694248200.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5756/9176/files/61721273875.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7244/6873/files/8792507860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/roguvuwuwezefojejas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6734/1974/files/formulaire_cerfa_13754_x_02.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1434/9219/files/nivuxigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5322/7936/files/11833006483.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000984c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x984C | 5500 bytes |
SHA-256: f57a6107c81ca813482504acf93e58ef67ce6f26926eed40edf889d234d4b0c4 |
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font_01_sfnt_off0000aafa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAAFA | 2472 bytes |
SHA-256: b33e43ec78646c2cbed06d8833d443ba43101c17c58155e9872a2af18e5a25db |
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font_02_sfnt_off0000b539.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB539 | 17504 bytes |
SHA-256: fe93c9c5e9a24f6bc52e1d01313a77a9dbbc65f4aa436b3426a3b43e88737b48 |
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font_03_sfnt_off0000ecf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF4 | 16080 bytes |
SHA-256: 99dc80f4e35ecbd485aec20692fae4feb9ee2895e9102f631d55a3222af1d7fe |
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