MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=dk+encyclopedia+pdf+free'. This URL is presented within the document body, suggesting a social engineering attempt to trick users into visiting a malicious site disguised as a free encyclopedia. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation or to obscure the primary malicious destination. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=dk+encyclopedia+pdf+free
- http://files.mrhansondai.com/uploads/1/3/1/6/131637178/7524635.pdf
- http://files.mysonthesuperhero.com/uploads/1/3/1/8/131857315/7555e446b8.pdf
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/72733579805.pdf
- https://cdn.shopify.com/s/files/1/0431/4536/3610/files/surah_yasin_dan_tahlil_full.pdf
- https://cdn.shopify.com/s/files/1/0437/5465/1799/files/201181881.pdf
- https://cdn.shopify.com/s/files/1/0434/4869/6993/files/countries_of_the_world_and_capitals.pdf
- https://cdn.shopify.com/s/files/1/0433/9915/1768/files/99422179723.pdf
- https://cdn.shopify.com/s/files/1/0440/5349/5958/files/puwawo.pdf
- https://cdn.shopify.com/s/files/1/0434/0567/2597/files/biblia_de_jerusalen_catolica.pdf
- https://cdn.shopify.com/s/files/1/0438/8762/4344/files/55680332528.pdf
- https://cdn.shopify.com/s/files/1/0440/7423/8102/files/mimijulovugidugo.pdf
- https://cdn.shopify.com/s/files/1/0447/9506/8565/files/acquiring_medical_language_free.pdf
- https://cdn.shopify.com/s/files/1/0432/5038/5051/files/seduzokusujejadusinegev.pdf
- https://cdn.shopify.com/s/files/1/0437/2771/6520/files/comment_apposer_signature_document.pdf
- https://cdn.shopify.com/s/files/1/0430/1216/1685/files/water_aerobics_certification.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006565.bin54b3cf1bd6ffb23e5a0513f0a14a18a0ac61b0b6ac899134d741a2c3a4e53a85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6565 | 5136 bytes |
font_01_sfnt_off000076fa.binac2ed38f6b2f27142319603eddf8d579dfca970a35e28e0d9fabbfd95a266d51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76FA | 10260 bytes |
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