MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text related to 'apset 2018 question paper with answers' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a link farm heuristic further indicates an attempt to distribute malicious content or traffic.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=apset+2018+question+paper+with+answers In PDF document text
- http://vanokeni.dandelionkisscustomphotojewelry.com/uploads/1/3/1/3/131383744/vujegekubofojer.pdfIn PDF document text
- http://files.mindforyouth.org/uploads/1/3/2/7/132740814/pisoxebagalepanik.pdfIn PDF document text
- http://files.integritycincinnati.com/uploads/1/3/2/7/132712325/2031551.pdfIn PDF document text
- http://files.thewanderers.org.au/uploads/1/3/1/6/131607331/5a692599d.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/1/0437/6294/2101/files/financial_accounting_multiple_choice_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0281/4876/files/attachment_style_inventory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9558/9013/files/nuvuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9494/0575/files/anestesia_local.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9531/6896/files/tumaczenie_z_angielskiego_na_polski_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2529/1674/files/15253027912.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8035/8815/files/sowukifudipejutazefajo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7863/2095/files/zitapisaramafubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6055/9013/files/15355922456.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9575/2864/files/pezuwagabawasiwokituxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1806/7866/files/laregixowovanusazodus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4790/1592/files/69501204155.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4098/8575/files/canadian_immigration_form_5257.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_off00006d26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D26 | 5600 bytes |
SHA-256: 6d0f9c0f1003e56047a6b74f816ec431b4b3c05f6c7b2a01b8764dc533167062 |
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font_01_sfnt_off0000803e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x803E | 12592 bytes |
SHA-256: 44d00b45148e628856cae0cc1e1c881d301e206cb15d9df30c9fe22e04062866 |
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