MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and contains numerous links. One critical heuristic identified links pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=cphi+exhibitor+list+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of a large number of external PDF links, many pointing to Shopify domains, indicates a potential link farm or SEO manipulation tactic to disguise the malicious intent.
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.ru/pify?keyword=cphi+exhibitor+list+pdf In PDF document text
- http://files.urbanbiologistbali.com/uploads/1/3/1/4/131437806/losob.pdfIn PDF document text
- http://files.lajalostudio.com/uploads/1/3/2/7/132740424/2497877.pdfIn PDF document text
- http://rapura.ellertonwesleyanchurch.com/uploads/1/3/1/0/131070374/eb9134.pdfIn PDF document text
- http://files.promegauk.com/uploads/1/3/1/4/131408899/mevurugigudotebive.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/1/0428/6224/8102/files/alternator_voltage_regulator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3476/2664/files/20483792017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6244/1637/files/musodijetogogikubateb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10217245918.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0645/2127/files/pdf_autobiography_of_benjamin_franklin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2007/4663/files/60166015311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4964/7271/files/67418243271.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2068/9306/files/kanubasodato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/bojof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8951/1071/files/kolesonevaxulupatomoxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0132/3421/files/nuvufurutokaseruf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3519/7602/files/pivitikopuxabelunopar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7289/6672/files/37080612141.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0385/3469/files/fexezovuwitisokolasaze.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_off000069ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69EC | 5032 bytes |
SHA-256: 3110a93377bbb2036ff058ec84adb36b59868fbb1dcc837ef3116ced4dcce756 |
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font_01_sfnt_off00007afc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AFC | 10364 bytes |
SHA-256: 4c0e7602d0bc0a5e51c658259eabba9483662c88af94617a1dff2046e8641b0e |
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font_02_sfnt_off00009e82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E82 | 16120 bytes |
SHA-256: 2a726e4d8e078a4a4a6a0bed67b139344cab8167eb027720faf42c08020076b2 |
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