MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to an 'answer key' and a 'download' button. The primary malicious IOC is the redirector URL, which likely leads to further malicious content. The file is classified as a malicious redirector due to its structure and the presence of a known malicious link.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=tgt+sanskrit+answer+key+2016 In PDF document text
- http://files.xuluprophet.com/uploads/1/3/1/4/131437307/362989.pdfIn PDF document text
- http://files.goodshepherdgratz.com/uploads/1/3/0/9/130969075/miratov-kekezoxagomaga-jebejuwovosive.pdfIn PDF document text
- http://files.ironbridge-analytics.com/uploads/1/3/1/6/131606730/8974769.pdfIn PDF document text
- http://files.imhafiz.com/uploads/1/3/0/8/130814421/ropiri_zewolibewis_legitoxiga.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/0094/5048/files/75753257169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0457/6752/4518/files/veviremugejumerimawokape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4990/9415/files/56747972119.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7237/0326/files/agustin_barrios_mangore_la_catedral.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1416/7450/files/string_to_hex_python.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8878/2236/files/93540268801.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/pozatoraxifo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8647/8489/files/ejemplo_de_acta_constitutiva_de_un_restaurante.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4691/0617/files/2267442391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4190/5050/files/43762337802.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006b04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B04 | 5188 bytes |
SHA-256: e3b44493fdf90470d8eae8fce94a786bad6df636ac9d5ec6e64f832bb585aa63 |
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font_01_sfnt_off00007ccf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CCF | 16680 bytes |
SHA-256: eee108464e7006ddf3a5cb7732ac3ecf4516607f11dd911945b450a9c3c75916 |
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font_02_sfnt_off0000afbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFBE | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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