MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a primary malicious redirector URL. The document body, though heavily obfuscated, contains the text 'Inorganic chemistry books for msc pdf' and the malicious URL, indicating a lure to download a fake PDF. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known 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.cc/pify?keyword=inorganic+chemistry+books+for+msc+pdf In PDF document text
- http://tuvubura.grasshoppervapesllc.com/uploads/1/3/1/4/131407222/b4e3b1e1767d4.pdfIn PDF document text
- http://files.calibrothers.com/uploads/1/3/1/4/131437018/guxowos.pdfIn PDF document text
- http://nivow.huronbirth.com/uploads/1/3/2/7/132740873/fudoluduvutixim.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3349/3658/files/463298507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3521/4503/files/pitapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3489/3718/files/getosovopep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2182/0313/files/makelokiberitamud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2578/5255/files/menudugas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7142/9016/files/88957594644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1478/2104/files/52420696070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8548/7516/files/internal_exception_java_lang_nullpointerexception.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0079/9140/files/jalalanokokalivapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7176/6695/files/cambio_de_a_word_online_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5581/6599/files/selekagowepotegibusa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0632/7959/files/18180289139.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6336/2204/files/butibarunivelekusamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6082/0133/files/xugejekugoma.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000080fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80FA | 5780 bytes |
SHA-256: 9d2e300240f40e3eaa0d6401cdb2ef06e268d18fba579869e69d2acfce16472b |
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font_01_sfnt_off00009474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9474 | 2524 bytes |
SHA-256: 6032c3fa34283b9ac8af23d0718662115c6c111706b6c494ddf42754192cfbc7 |
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font_02_sfnt_off00009fb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FB5 | 2320 bytes |
SHA-256: 026de1076dad6614fee7b4839f066e743e4238b5ddea94259138cfcd618330b4 |
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font_03_sfnt_off0000aa07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA07 | 10060 bytes |
SHA-256: d249c716ce65c9bad716d7ccb67e944f92d1ca7d6ffb57fbf2ad118e2a3356e0 |
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font_04_sfnt_off0000ccc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCC0 | 16224 bytes |
SHA-256: 7a7e0f9cb89785dee93ecfbcc78ef93b5a18a5022886c2d5a0bf15d9412c15a0 |
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