MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links, including one pointing to a known malicious redirector. The document body and embedded links suggest a link farm or SEO poisoning tactic, likely designed to lure users to malicious sites. The primary malicious URL identified is https://ttraff.ru/pify?keyword=alcoholics+anonymous+big+book+fourth+edition+pdf.
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=alcoholics+anonymous+big+book+fourth+edition+pdf In PDF document text
- http://files.vullowisp.com/uploads/1/3/1/4/131438337/dadajixarofaxit.pdfIn PDF document text
- http://files.officialjonathanmiller.com/uploads/1/3/1/4/131410007/fomere.pdfIn PDF document text
- http://files.myersreece.com/uploads/1/3/0/7/130776444/biwonorebop.pdfIn PDF document text
- http://files.en.todaysteachingtools.com/uploads/1/3/0/8/130874324/sezijomuragobogapofi.pdfIn PDF document text
- http://fejixedek.wesawa.org/uploads/1/3/1/1/131164250/midumituku-lotolunofoxiw-fototusunonobu-penutesalil.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/1/0432/8249/7701/files/skyrim_creation_kit_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2929/1427/files/hsc_bm_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1659/3312/files/35961249307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9033/7182/files/letisifujesufapeda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6737/5770/files/91018701680.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3604/9571/files/43258482955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5713/6294/files/67788096107.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0580/4698/files/23131036828.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5990/2624/files/null_and_alternative_hypotheses.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1367/5928/files/rejadogojerojutokarapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4061/1226/files/sumolawifamamomid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7037/4559/files/data_analysis_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7456/5784/files/body_language_in_business_decoding_the_signals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6562/0118/files/79583090896.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_off00005779.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5779 | 5864 bytes |
SHA-256: fd26e5346004843cd276850f1ca45eb934339b3cba1da9d63445fbbe2ba597dd |
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font_01_sfnt_off00006b3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B3F | 10232 bytes |
SHA-256: 3c2b16f5c815b6009ca2ba08d357526d6517a8e9302e2cdfdebdcac0349ce8a6 |
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