MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though obfuscated, contains a URL that matches the redirector, suggesting a phishing or malware distribution lure. The presence of multiple external PDF links further indicates a link farm or SEO poisoning tactic to drive traffic to malicious sites.
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.ru/pify?keyword=o+level+chemistry+5070+notes+pdf In PDF document text
- http://files.projectufo.org/uploads/1/3/0/7/130739381/4877757.pdfIn PDF document text
- http://files.tompigotpaintings.com/uploads/1/3/1/6/131606011/2975514.pdfIn PDF document text
- http://files.gayedesigns.com/uploads/1/3/1/8/131856723/javoxefu_jenuse_lapekikokebi_vulolugisoxegud.pdfIn PDF document text
- http://vigum.ouwpc.org/uploads/1/3/2/8/132814930/mufiwi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://scripts.sil.orgThisIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9376/1956/files/rendering_in_pen_and_ink.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5560/4121/files/18093392243.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7970/3451/files/49849228259.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1529/0529/files/gubuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4285/6344/files/visutujaxetejukusuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2873/3352/files/asvab_prep_plus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7113/4106/files/handbook_of_reliability_availability_maintainability_and_safety.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8620/8406/files/92850772433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7849/2062/files/tusaledesuno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5180/9957/files/5516956864.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://scripts.sil.org/In PDF document text
- http://scripts.sil.org/OFLAbyssinicaIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006fd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FD1 | 5720 bytes |
SHA-256: 9ebe521dbb9936131a36e9dda6fbfca940d74eab912108584152fc7e2f12952b |
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font_01_sfnt_off00008337.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8337 | 20800 bytes |
SHA-256: 8bf86bd1ff65d52bfbbf71ae7947db104a35a713bc8359bf00128ed5d3eff592 |
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font_02_sfnt_off0000a2de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2DE | 11288 bytes |
SHA-256: 7bec4cd4cb7b12f9fc5f826f9308a459a3b3b0d2778e1579ebccb5d66ccbae78 |
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font_03_sfnt_off0000cb14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB14 | 10588 bytes |
SHA-256: 8a3bc2e662f70073891688ed4956f9a1cfc3d63f1f97a9f976650ab0969135d4 |
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