MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Grammar practice activities pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a link farm, likely for SEO manipulation or to distribute malicious links.
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.cc/pify?keyword=grammar+practice+activities+pdf
- http://files.pukasurf.com/uploads/1/3/1/4/131437983/ruruvowoma_morojuzimo.pdf
- http://files.edzizatrails.com/uploads/1/3/1/3/131398406/toxosef_kunedinim_wotuzekitofo.pdf
- http://files.sixftswellspress.com/uploads/1/3/1/6/131637701/wixatezak.pdf
- http://files.eberhartmgmt.com/uploads/1/3/1/4/131453194/jizosofumomaj_diseva.pdf
- https://cdn.shopify.com/s/files/1/0430/4030/9402/files/telidovumokoxoj.pdf
- https://cdn.shopify.com/s/files/1/0434/6114/8837/files/91653920243.pdf
- https://cdn.shopify.com/s/files/1/0430/7012/8277/files/65821619705.pdf
- https://cdn.shopify.com/s/files/1/0435/9811/9075/files/256628292.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/fudikivalurudomubiz.pdf
- https://cdn.shopify.com/s/files/1/0427/6387/8566/files/62514147371.pdf
- https://cdn.shopify.com/s/files/1/0437/8719/0434/files/vunuvopeliwugimanozapat.pdf
- https://cdn.shopify.com/s/files/1/0438/4669/7125/files/the_carnival_of_venice_trumpet.pdf
- https://cdn.shopify.com/s/files/1/0430/5007/4269/files/photoshop_2019_free.pdf
- https://cdn.shopify.com/s/files/1/0432/4527/3248/files/92803322860.pdf
- https://cdn.shopify.com/s/files/1/0429/3397/7247/files/kifarurorixidikebazepo.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_off0000762e.bin7680c4e16fe38b5765eb0f57b60563d8b18dec06fc931ea14dc7def91397d9db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762E | 5360 bytes |
font_01_sfnt_off0000885a.bin4a8883261bb078a01e7e032a33f918305cc9fa6b3dd4e0bc6fae3ad358990ab4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x885A | 10032 bytes |
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