MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'acids and bases with formulas pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of a link to malicious infrastructure.
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=list+of+acids+and+bases+with+formulas+pdf In PDF document text
- http://files.mariettaoddfellows.org/uploads/1/3/0/9/130969561/07e0f0cbe189.pdfIn PDF document text
- http://nisufu.sscimp.com/uploads/1/3/1/1/131164239/fepepameboja_fesiliwop.pdfIn PDF document text
- http://suxaf.fixmyflatpack.net/uploads/1/3/1/6/131606875/putitutesibegeso.pdfIn PDF document text
- http://zifijami.rhynotite.com/uploads/1/3/1/8/131871864/1242304.pdfIn PDF document text
- http://files.heislercommunications.com/uploads/1/3/1/4/131406478/sosugibatovuso.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/1/0428/9835/8432/files/vevisip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4143/1464/files/34148238600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8721/6293/files/nuzumufosexiwasus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3956/1630/files/jazewosevozopugojuri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8899/3699/files/wojepukamajig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0765/4563/files/56208046298.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97242885008.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8795/3053/files/18869602451.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2926/4546/files/sosefukixepax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3040/4502/files/30925930657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1922/9591/files/java_remove_element_from_array.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE092 | 5568 bytes |
SHA-256: 785e14edb041b9b14f332ee6ab54af25e3a70fcb40c86808225cff5dfa8c39f8 |
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font_01_sfnt_off0000f367.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF367 | 14016 bytes |
SHA-256: 0b54ac84196e7973a75ccade8527e77454eef3a44b6d34358fc15529a5b659f0 |
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font_02_sfnt_off00011fc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FC5 | 16116 bytes |
SHA-256: d82d87826c3064c03a306f79bf7d04151e9ee92f23bd1ad67cae8d9f5ad36d9b |
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