MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector URL, identified as a malicious link by heuristics. The document body text, though partially obfuscated, includes terms like 'Tds tcs tax challan form 281' and numerous URLs, suggesting a phishing or scam attempt. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=tds+tcs+tax+challan+form+281 In PDF document text
- http://files.kristinasimenski.co.uk/uploads/1/3/1/4/131438784/59595e4c38.pdfIn PDF document text
- http://files.peacelutheranconnersville.org/uploads/1/3/1/4/131453535/2c3510cf3.pdfIn PDF document text
- http://xakabek.thetrick.fr/uploads/1/3/0/8/130874493/suwumuduve.pdfIn PDF document text
- http://files.oregon-photos.com/uploads/1/3/2/7/132712558/e6da10d663b466.pdfIn PDF document text
- http://ruwimox.precisionskitune.com/uploads/1/3/1/4/131437402/8051219.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/1/0435/5912/5160/files/35716961998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8591/3500/files/sandesh_news_gujarati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7571/4715/files/8663440734.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3942/3655/files/23667178170.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3003/6123/files/rotuzokelubi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6485/2634/files/ejercicios_de_pasar_de_grados_centigrados_a_kelvin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1007/2481/files/compelling_evidence_steve_martini.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7327/2998/files/commercial_real_estate_spreadsheet_templates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0270/7616/files/alzheimer_canino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8581/6218/files/puxagemakajutolarog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2482/4995/files/66548150386.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000050f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50F1 | 5656 bytes |
SHA-256: 9df0e6383818bb7a9483fd58797f3be5cac572732cf7d70ec1df5a1ce500ac4c |
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font_01_sfnt_off00006400.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6400 | 9876 bytes |
SHA-256: d4a372ef601acc4f42c20fb98563a79c4ca6e16014ee60b340eb49e36c53a714 |
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