MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a malicious redirector link disguised as a "Yahoo email client" lure, aiming to trick users into clicking it. The link directs to `https://ttraff.ru/pify?keyword=yahoo+email+client`, which is flagged as a known malicious redirector. The document also contains a large number of links to other PDFs, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of a malicious redirector and the lure strongly indicate a phishing attempt.
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=yahoo+email+client
- http://files.myrolllife.com/uploads/1/3/0/8/130874493/527bb23f.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/0513/1421/files/combination_math_problems_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/9902/9655/files/bomuw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavijado.pdf
- https://cdn.shopify.com/s/files/1/0434/2562/8316/files/deep_purple_discography.pdf
- https://cdn.shopify.com/s/files/1/0433/6815/3239/files/list_of_battery_types.pdf
- https://cdn.shopify.com/s/files/1/0432/9832/4638/files/89314323040.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
- https://cdn.shopify.com/s/files/1/0431/0702/5060/files/buddha_teachings_book.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/99110711683.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000601c.bin1b881125678f3f38a8264c2ae574899e0eadb9e4f8557fdb9e65fd55dfea5773 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x601C | 4724 bytes |
font_01_sfnt_off0000700a.bin06bbc0c0d1624784b5076ca7b343e8933da223a86edf6280bdbe5bdf93c1cb63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x700A | 2112 bytes |
font_02_sfnt_off000079da.bin8056fe5154b7ea2442adae389369360f8e62f74a75ba33c7af2b01e7169a7ac7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79DA | 10152 bytes |
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