MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'ctet july 2019 question paper pdf', suggesting a lure to entice users to click the malicious links. The presence of a visual download button further supports a social engineering attack. The primary malicious IOC is the redirector URL.
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/wb?keyword=ctet%20july%202019%20question%20paper%20pdf In PDF document text
- http://tibazilob.naomibellina.com/uploads/1/3/1/3/131383483/dusotowi.pdfIn PDF document text
- http://files.andrewjacksonrock.com/uploads/1/3/0/8/130874017/6f4721099.pdfIn PDF document text
- http://files.cwimconference.ca/uploads/1/3/0/8/130814195/xeguwanojaworif_sijazuwipu.pdfIn PDF document text
- http://files.rustyjotheclown.com/uploads/1/3/1/4/131483098/potomi_magaganumif_dafosupedipevix.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/1/0433/0687/7080/files/86526592296.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9693/2501/files/case_study_approach.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9527/7214/files/ropegalitemodujazutovoru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0440/3613/files/zavugadomalon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1234/1412/files/26593622543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8402/9854/files/dixopiwutarotesumikipaxod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/xusabexadugole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7261/7637/files/70497832391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/sukekixinaxonuwatubanu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/20256411106.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4029/8392/files/tosibewudegokalo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2897/1681/files/17666430497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/porubusiditi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3929/2577/files/zabuxiris.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_off00005f4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F4C | 5724 bytes |
SHA-256: 613fa22a2e2b72457a0a6a16408d604f4d09ab2930c6f051a379e094f7ba1e61 |
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font_01_sfnt_off000072e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72E4 | 10152 bytes |
SHA-256: 3cb226cb8a9344103dbed7fb045f56b2c4907cd44baa0b4b0a377c9efa44c98d |
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