MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious payload. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, suggesting an attempt to manipulate search engine results or distribute content. The presence of a 'download button' heuristic further supports the lure mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.ru/pify?keyword=chemical+equilibrium+class+11+ncert+pdf In PDF document text
- http://files.leasidearena.com/uploads/1/3/1/4/131455832/sowapinosivomoje.pdfIn PDF document text
- http://files.karenjweyant.com/uploads/1/3/0/8/130814676/napepezoze_memaniromumo_damisivapoko_bivokudateriga.pdfIn PDF document text
- http://files.goodworksbuilding.com/uploads/1/3/1/3/131380756/4102269.pdfIn PDF document text
- http://files.elliesparkcity.com/uploads/1/3/1/3/131380875/morajefatim_mibibawutono_tidilutatetex.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/1/0435/0243/6518/files/biology_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2077/8653/files/falomovulekuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26384136461.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5753/5390/files/badminton_rules_in_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4190/7110/files/atomic_orbitals_and_molecular_orbitals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9839/7085/files/tumirazewakaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5921/6537/files/3956152307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0724/4450/files/polizul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0802/4985/files/57289460716.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8922/2045/files/lamowal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5117/9423/files/17410709575.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001577c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1577C | 5508 bytes |
SHA-256: 3acf2511a2a73871f1d830ccd656f82e03f00cb1a5ddfaac877de730adc9507a |
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font_01_sfnt_off000169fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169FA | 2172 bytes |
SHA-256: fd5dcd9ba48ff15015509b708a9a8eb28212cffbdeeb6baf7492f7788fe52a9a |
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font_02_sfnt_off0001735b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1735B | 18400 bytes |
SHA-256: 5ce583157d009474b8a49fe632d4075483dfcf956c117d98ccf9da678a0e1222 |
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font_03_sfnt_off0001ac84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AC84 | 16524 bytes |
SHA-256: 206b9ba5612b2cec5444d4f90f9df0cc078690c0e91cf5736f9d017b8f9db370 |
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font_04_sfnt_off0001c315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C315 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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