MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised with a seemingly innocuous keyword related to academic results. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or redirection strategy. The presence of multiple PDF links and a malicious redirector indicates an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.
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=psc+marksheet+2018+comilla+board In PDF document text
- http://files.mutationpennants.com/uploads/1/3/1/4/131453384/subomuzoxob_lomasiteta_tikov.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/1/0434/0426/3585/files/wigopirukuwutosavisi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8575/6568/files/77230480176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6876/6873/files/rejofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2456/1829/files/zekaboziv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4874/7686/files/paduxokarasesuvipuwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/8662/9288/files/bactrias_anaerbias.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5350/6969/files/lebiwegazozazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/9854/0949/files/pufevokuximutokut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ganisififado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0985/9999/files/54095917644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63016720996.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_off00007b1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B1B | 5584 bytes |
SHA-256: 17d7d493e31653eb7278e2d718dfc0810d960d3ac18ade5dd66222215b3c1267 |
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font_01_sfnt_off00008e07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E07 | 9980 bytes |
SHA-256: ec07a66059a4c2c782074d2f0270754fef8f131fad18596804d5ce5bc4ac5086 |
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font_02_sfnt_off0000ad5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD5F | 12008 bytes |
SHA-256: 38c599999837066646e21748ec165b53b685018c2cedbae5061fbc0841fdbb76 |
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font_03_sfnt_off0000d433.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD433 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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