MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'aventuras 5th edition pdf free' and the malicious URL, suggesting a lure for users seeking free content. The primary malicious URL is https://ttraff.ru/pify?keyword=aventuras+5th+edition+pdf+free, which redirects to other potentially malicious PDF hosting sites.
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=aventuras+5th+edition+pdf+free
- http://sekerir.donnace.com/uploads/1/3/0/8/130874493/jejel.pdf
- http://feber.kielbasablog.com/uploads/1/3/1/6/131606407/pojoxokelabiz.pdf
- http://files.countrysidechurchseminole.com/uploads/1/3/1/3/131379828/wifavurebinir-fumubet-lagodivomoli.pdf
- https://cdn.shopify.com/s/files/1/0434/0488/6166/files/84724752611.pdf
- https://cdn.shopify.com/s/files/1/0429/1756/0473/files/goxeterunosizujowulixi.pdf
- https://cdn.shopify.com/s/files/1/0430/7173/3917/files/38023362419.pdf
- https://cdn.shopify.com/s/files/1/0434/5197/3799/files/vaxutipup.pdf
- https://cdn.shopify.com/s/files/1/0430/4266/8698/files/attach_file_in_php_mail.pdf
- https://cdn.shopify.com/s/files/1/0435/8176/7841/files/2020_south_african_calendar.pdf
- https://cdn.shopify.com/s/files/1/0430/6878/4791/files/sewing_machine_parts_name_with_picture.pdf
- https://cdn.shopify.com/s/files/1/0430/7278/2489/files/nimunusoxoxanidokisiduga.pdf
- https://cdn.shopify.com/s/files/1/0433/0536/9768/files/79955746527.pdf
- https://cdn.shopify.com/s/files/1/0429/2955/3575/files/vobaga.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005117.bin50d870a63c99c60b5d2580f245367a7928fe0d2d4179ca63f2e7801cc9356a32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5117 | 5152 bytes |
font_01_sfnt_off0000629a.bin98078505680a57800dcb5340b4e5bdde54fc24e98059a961f9abc40e814036c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x629A | 11996 bytes |
font_02_sfnt_off000089f8.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89F8 | 4324 bytes |
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