MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, likely for SEO poisoning. The embedded URL https://ttraff.com/wb?keyword=principle%20instrumentation%20and%20application%20of%20hplc%20pdf is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.
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.com/wb?keyword=principle%20instrumentation%20and%20application%20of%20hplc%20pdf In PDF document text
- http://files.p2gbrooklynnorth.com/uploads/1/3/2/6/132683357/0aba80315bc3.pdfIn PDF document text
- http://files.dartmouthrock.co.uk/uploads/1/3/1/3/131380485/18faf5.pdfIn PDF document text
- http://posawubi.chandraniwas.com/uploads/1/3/0/7/130739430/lavisivoki.pdfIn PDF document text
- http://files.theroombrighouse.co.uk/uploads/1/3/1/6/131606011/8712115.pdfIn PDF document text
- http://files.candacegayle.com/uploads/1/3/2/7/132741375/badabasa.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/1/0431/5162/2306/files/30523426907.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4757/4949/files/top_100_songs_torrents.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2634/1272/files/rijofapakipizeluj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1966/5561/files/seropasigix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1824/8601/files/spectrum_dx7_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6754/6527/files/16183333479.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0648/3876/files/41396463664.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3128/2335/files/family_life_bible_study_for_couples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peregomosurexezobosezob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2849/5001/files/2016_nissan_rogue_owner_s_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/sasaziwulebolozoleg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0017/6544/files/dagosifivubadufelokaxob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/vezojutarejodes.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_off0000a91b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA91B | 5276 bytes |
SHA-256: 570a9a1d3cd2a8f6750ee92a4b1f277e94cb57c4ae9c6872478be6462507ab09 |
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font_01_sfnt_off0000bacb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBACB | 10652 bytes |
SHA-256: 2fcd4f0ec2682e7ebe7761c06992bc6aae27972f1a5840dbb89e47a1a90c0e87 |
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font_02_sfnt_off0000def4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEF4 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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