MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though obfuscated, contains text that appears to be a lure for a syllabus, combined with the malicious redirector URL. This suggests the document is designed to trick users into clicking the malicious link, likely leading to malware download or a phishing page.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=syllabus+biology+class+12+up+board+pdf In PDF document text
- http://files.fryfamilyfoundation.com/uploads/1/3/1/3/131398085/vemaxakozu_wexibel_ditile.pdfIn PDF document text
- http://jaziv.averti.be/uploads/1/3/2/7/132741334/kuwif-fogiga.pdfIn PDF document text
- http://files.jemendozalahc.com/uploads/1/3/1/4/131484328/mufakap_dujuzol_texap_dubebinev.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
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4131/5223/files/maple_syrup_urine_disease.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80463449019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3227/9190/files/gejedawodo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3483/7149/files/fewowu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8093/1733/files/78850886432.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4469/0337/files/sivolixatebagurivimavenow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3776/9383/files/minecraft_shader_1._8._7.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3459/1907/files/jegej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8221/1735/files/87719408477.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005eaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EAA | 5428 bytes |
SHA-256: 784a4bd8a60e5dc5a7ca9c9d6e59d3d29442870d52acf91dc7f916fd020b11e2 |
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font_01_sfnt_off00007128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7128 | 10512 bytes |
SHA-256: 319484688d039e3934d43d8d43c705bc2cfce38487a90ed05069ceab0c7ddaf6 |
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font_02_sfnt_off000094c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94C6 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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font_03_sfnt_off0000a2c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2C6 | 4820 bytes |
SHA-256: c7751f827061ef1f398c40189c5b4b5cb72232be0f584eae466f63ac81652207 |
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