MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a critical redirector link pointing to ttraff.ru, indicating a malicious intent to redirect users. The ML classifier also strongly flagged this PDF as malicious. The document body, though partially garbled, contains the same keyword as the redirector URL, suggesting a lure for users searching for 'air pollution and quality control notes pdf'. The embedded links likely serve to distribute malware or lead to phishing pages.
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=air+pollution+and+quality+control+notes+pdf
- http://files.hestercox.com/uploads/1/3/2/3/132302896/ruwaza-badofi-gatovutag.pdf
- http://files.exploremathindemand.com/uploads/1/3/1/3/131380094/xagakukegenesara.pdf
- http://vawegita.takeaclasswithlaura.com/uploads/1/3/1/4/131453215/sonewajulewejojog.pdf
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/39468025912.pdf
- https://cdn.shopify.com/s/files/1/0432/3016/7202/files/69863306521.pdf
- https://cdn.shopify.com/s/files/1/0438/0891/5613/files/lizesujiwadapam.pdf
- https://cdn.shopify.com/s/files/1/0431/2861/9168/files/bulojosovave.pdf
- https://cdn.shopify.com/s/files/1/0432/1263/6322/files/50211492010.pdf
- https://cdn.shopify.com/s/files/1/0431/5650/4744/files/talezidux.pdf
- https://cdn.shopify.com/s/files/1/0438/4607/4525/files/rubuperabudujibizel.pdf
- https://cdn.shopify.com/s/files/1/0431/6191/1460/files/jovudo.pdf
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/14896784580.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_off00007445.binc521cfc4c9a4e1211088368657090c32ead91c9bb7ad49419798c2b0daae03d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7445 | 5368 bytes |
font_01_sfnt_off0000869c.bin4169a29ce4954ff2e936bccfb6c329128f44320642dc1ad90c6e6525590fc6bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x869C | 10448 bytes |
font_02_sfnt_off0000aa36.bin22789f6d822f0df277af9bb0f7b9180970341dccef01b43327e338765a7a0fc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA36 | 18684 bytes |
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