MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was identified as malicious due to a high density of embedded links, many of which point to a known malicious redirector. The document body contains obfuscated text and the primary malicious URL is https://ttraff.com/pify?keyword=guideline+stemi+2018+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2. The presence of numerous links to external PDFs, including benign ones hosted on Shopify, suggests a link farm or SEO poisoning tactic to lure users to malicious sites.
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.com/pify?keyword=guideline+stemi+2018+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2 In PDF document text
- http://files.rueckkehrzentrenschliessen.org/uploads/1/3/0/7/130739393/wesiguxan-saxanopirupox.pdfIn PDF document text
- http://morobo.lqcolour.com/uploads/1/3/2/6/132695615/8920884.pdfIn PDF document text
- http://lagef.myrandastangeland.com/uploads/1/3/1/6/131636725/5368273.pdfIn PDF document text
- http://files.ncontrack.org/uploads/1/3/0/7/130775462/wexuv_pizub.pdfIn PDF document text
- http://www.opentle.orgIn 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
- https://cdn.shopify.com/s/files/1/0430/3765/5193/files/intro_to_mineralogy_nesse.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/a_b_c_d_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8014/6343/files/papufubokelejurefop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/impulse_physics_worksheet_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1817/4107/files/73624011238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2585/8714/files/situbelimaxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0393/5911/files/xigamejekubinotuwejufu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/2462/4288/files/34852420261.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/59253636652.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5298/9607/files/64382427096.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5597/1480/files/80486898200.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off000074e0.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x74E0 | 11580 bytes |
SHA-256: 6a54abba4e99e8cf9f6c76465e9b1ebc4eab3704a8c01cf6adacb2772462001f |
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font_00_sfnt_off000053d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53D9 | 4988 bytes |
SHA-256: 59c80c655478752b3ddd9287b9392c2e03fef2890e08e3450c5ea9a8f04284c9 |
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font_01_sfnt_off000064b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64B9 | 6228 bytes |
SHA-256: b882c44c4179b1494a3ffea3713f3e10acaee1f866a4fcf474685b622714bba7 |
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font_03_sfnt_off000095a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95A1 | 13192 bytes |
SHA-256: ff85c7fd16ea364b064f9b6d009cf3806f0d334fb8167086727c489dfd3ae4f9 |
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font_04_sfnt_off0000bf02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF02 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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