MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the text 'Logo quiz answers level 2 2018' and a URL that appears to be a lure. The presence of multiple PDF links suggests an attempt to create a link farm for SEO manipulation, likely to distribute malicious content or phishing pages. The ML classifier also strongly indicated maliciousness.
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=logo+quiz+answers+level+2+2018 In PDF document text
- http://firadufe.building313.com/uploads/1/3/2/6/132681556/1546808.pdfIn PDF document text
- http://koriwudi.abellcable.com/uploads/1/3/2/8/132815806/4180883.pdfIn PDF document text
- http://taruparen.murielkneeshaw.net/uploads/1/3/0/7/130775126/90dd65b5503.pdfIn PDF document text
- http://files.soul-blossoming-therapies.com/uploads/1/3/0/7/130775741/dagogikudunusaw_fugeziw_fofavomaxilam_zopit.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/1/0428/4180/0860/files/jojukubenurufapinuna.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0009/4112/files/ayushman_bharat_yojana_in_english_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8899/2674/files/wijebiboxexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4190/5050/files/automotive_technology_principles_diagnosis_and_service.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2729/8461/files/ridavi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2807/9004/files/xuguferovobedelakasajina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9972/4702/files/xafegudep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4111/1707/files/gunoxuzebilile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0364/7912/files/39738713677.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1915/8183/files/molaxawipowigevobikewim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5108/0087/files/16148549530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9857/8848/files/stevens_model_311.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000053c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53C0 | 5640 bytes |
SHA-256: 8d70524dfd2e72a869621877074efe61b5848ab34f6820be7e34229df166e5ba |
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font_01_sfnt_off0000672b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x672B | 13232 bytes |
SHA-256: 9f9f5954749166da2d8a8fc807444a06b49f49673297d07badc7c5ead943c8af |
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font_02_sfnt_off00009104.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9104 | 17672 bytes |
SHA-256: 4de8d8ad80d7faef4649bae6b9058095f91d43eb631b5b4cb27320c5b2975c96 |
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