MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link that redirects to a malicious domain, disguised as an 'Assam tet 2020 syllabus pdf lp'. This is a common lure to trick users into visiting a potentially harmful website. The file also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to increase visibility of the malicious redirector.
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=assam+tet+2020+syllabus+pdf+lp In PDF document text
- http://files.lionessenergetics.com/uploads/1/3/2/7/132740270/zususojax.pdfIn PDF document text
- http://files.maggiemccabeart.com/uploads/1/3/1/4/131452976/bipusumubebov-dosapof-ziduga-morabutorebe.pdfIn PDF document text
- http://files.rosesrags.net/uploads/1/3/1/4/131453902/4190130.pdfIn PDF document text
- http://files.mypittsburgchamber.org/uploads/1/3/1/3/131379732/vipot.pdfIn PDF document text
- http://files.southamericarealstate.com/uploads/1/3/2/7/132741385/4163b.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
- https://cdn.shopify.com/s/files/1/0438/5308/6885/files/butevavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0601/7186/files/java_iterate_through_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3309/1480/files/kuzisobekobadipan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0064/3236/files/46458608407.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7846/7222/files/molizodugujuzugarizonov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9748/7512/files/degesijenanopepifuxonuda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8127/7342/files/waripuguwabopus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3460/5728/files/milubexoxunetexemav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2633/1286/files/collins_proline_21_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6336/0153/files/affairscloud_weekly_september_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0665/6666/files/77279429242.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2021/4681/files/39074744561.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007b0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B0E | 5212 bytes |
SHA-256: 4edd2e7eb139c08d0993d7ee2aa0d894325e04ccbbc1426b6bbf7f13d748c545 |
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font_01_sfnt_off00008ccb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CCB | 12488 bytes |
SHA-256: 3755c8448b00afe612706d8fec41824030072adea4226f05eae563e2bb214360 |
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font_02_sfnt_off0000b2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B7 | 10100 bytes |
SHA-256: 0c97b20f462f5629eb1e97486a053eab6493372f4b5c0f6adc1629a677b048db |
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font_03_sfnt_off0000d514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD514 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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