MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=tcs+written+test+papers', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Tcs written test papers', suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve search engine ranking for malicious content. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=tcs+written+test+papers
- http://burakok.missouriinstituteofhypnotherapy.com/uploads/1/3/2/7/132710776/xopazowuv_xukefef_reriva.pdf
- http://rapisujan.passivehabits.com/uploads/1/3/2/3/132302720/ab76593.pdf
- http://files.alizarothdmt.com/uploads/1/3/1/3/131379824/f0c6fbd.pdf
- http://lipopox.poseidonsporthorses.com/uploads/1/3/0/8/130874222/xelejevanagamen.pdf
- http://gojudu.atticus-guidance.com/uploads/1/3/0/8/130874493/268183.pdf
- https://cdn.shopify.com/s/files/1/0437/7129/7943/files/masobavovipukero.pdf
- https://cdn.shopify.com/s/files/1/0438/4364/9698/files/mavuxiriral.pdf
- https://cdn.shopify.com/s/files/1/0431/9599/0175/files/sebozidolizibomabe.pdf
- https://cdn.shopify.com/s/files/1/0430/2117/2897/files/beginner_vocabulary_games.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57896919986.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/cloud_9_start_postgres.pdf
- https://cdn.shopify.com/s/files/1/0432/1456/9640/files/11364938158.pdf
- https://cdn.shopify.com/s/files/1/0449/5589/3928/files/folexerulafoj.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_off00006648.bin48feb071535623449c533b4181fe537ca6f6a9a03da548104a743f3ebf67d6b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6648 | 4936 bytes |
font_01_sfnt_off0000772d.bin2f7411cb34b757d82eacab0dc3fddbb13224b8d7313998f5e353592d216a7e48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x772D | 12524 bytes |
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