MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=2nd+grade+math+review+worksheets+pdf'. Another critical heuristic identifies this as a PDF link farm, with numerous links to shopify.com domains, likely intended to obscure the malicious redirector. The ML classifier also 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=2nd+grade+math+review+worksheets+pdf
- http://files.miraclespringsfarm.com/uploads/1/3/0/7/130775413/pagukonedufam.pdf
- http://files.bodysoulcenter.net/uploads/1/3/0/8/130873771/37ef131bb01.pdf
- http://dokutaz.123playandlearn.com/uploads/1/3/1/4/131453109/zufawe-zagopovewov-litowuronetin.pdf
- https://cdn.shopify.com/s/files/1/0437/2326/0058/files/descargar_certificado_antecedentes_judiciales_policia.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5081520916.pdf
- https://cdn.shopify.com/s/files/1/0436/8406/9526/files/apostila_apicultura.pdf
- https://cdn.shopify.com/s/files/1/0432/2079/5556/files/naganasopawanaku.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7407/files/vigutum.pdf
- https://cdn.shopify.com/s/files/1/0432/5559/5172/files/sezuxoli.pdf
- https://cdn.shopify.com/s/files/1/0430/6560/6301/files/call_od_duty_4_patches.pdf
- https://cdn.shopify.com/s/files/1/0433/7729/5516/files/38478364964.pdf
- https://cdn.shopify.com/s/files/1/0434/0029/8648/files/45586135102.pdf
- https://cdn.shopify.com/s/files/1/0434/3549/1490/files/30._710833_84._8897222.pdf
- https://cdn.shopify.com/s/files/1/0431/9395/8560/files/mathematics_word_search.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_off0000751c.bincd11bf622121f61e65f16429ffbfdfd8bb6dc596b60a70a09d8618daca1a9488 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x751C | 5676 bytes |
font_01_sfnt_off00008857.bina37f8e1a179429f299be4ecaf8537646e78b744277daa3446a62307c9e6e247c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8857 | 10472 bytes |
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