MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded links, with one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text suggesting it is a 'teacher guide science 8', which is likely a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination. The ML classifier strongly flagged this PDF as malicious.
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=teacher+guide+science+8
- http://zakutiz.carolsommer.net/uploads/1/3/1/4/131408027/5472.pdf
- http://nikuku.ladiesofcharitymemphis.org/uploads/1/3/0/9/130969744/jekor-zidujikix-lidejedozo.pdf
- https://cdn.shopify.com/s/files/1/0434/0236/3045/files/xobubapo.pdf
- https://cdn.shopify.com/s/files/1/0436/7345/2697/files/47330225175.pdf
- https://cdn.shopify.com/s/files/1/0436/7102/7865/files/24130185975.pdf
- https://cdn.shopify.com/s/files/1/0433/4492/0734/files/pebalemogixezatugu.pdf
- https://cdn.shopify.com/s/files/1/0432/4704/2715/files/veziduzumimopusiveti.pdf
- https://cdn.shopify.com/s/files/1/0431/9494/1603/files/mikamapanewegosom.pdf
- https://cdn.shopify.com/s/files/1/0435/8704/3496/files/54705168910.pdf
- https://cdn.shopify.com/s/files/1/0434/3260/7894/files/rimatavu.pdf
- https://cdn.shopify.com/s/files/1/0438/6465/3984/files/26642199268.pdf
- https://cdn.shopify.com/s/files/1/0435/6158/2755/files/in_times_like_these_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/xedoroxogewob.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_off00006462.bin14312d6b2fe59807d638003c5f7e8a7e50d2f1bc145d7cc68eed8b213dba5f8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6462 | 5312 bytes |
font_01_sfnt_off00007667.bin566962f2859586a9f6c4c896abdc2c0f6a3e96f68909d9187daa55398b834dbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7667 | 10120 bytes |
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