MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including a critical redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and references a 'sorry letter for teacher template', suggesting a social engineering lure. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm and a malicious redirector indicates an attempt to distribute further malicious content or lead users to phishing 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.com/pify?keyword=sorry+letter+for+teacher+template
- http://pizan.smallwondercounseling.com/uploads/1/3/0/9/130969723/noxipikivoxamijaje.pdf
- http://potap.easeandexcel.co.uk/uploads/1/3/1/6/131606552/8121046.pdf
- http://files.glwdelivery.com/uploads/1/3/1/6/131637701/ditolofifufux.pdf
- http://xalixulew.syedmohsinakhtar.com/uploads/1/3/0/9/130969205/15b43dde60f53d.pdf
- http://rosula.drfaridyounos.com/uploads/1/3/1/3/131379803/2503007.pdf
- https://cdn.shopify.com/s/files/1/0432/8685/5840/files/pedajuzorejan.pdf
- https://cdn.shopify.com/s/files/1/0434/7537/0136/files/gotulukanawemiwutixab.pdf
- https://cdn.shopify.com/s/files/1/0433/4783/7083/files/tidenoguwu.pdf
- https://cdn.shopify.com/s/files/1/0430/8919/9268/files/20775209119.pdf
- https://cdn.shopify.com/s/files/1/0430/1045/7753/files/40754277547.pdf
- https://cdn.shopify.com/s/files/1/0436/1243/8685/files/mulinizagevilebeluja.pdf
- https://cdn.shopify.com/s/files/1/0438/4745/0789/files/tipexovimarega.pdf
- https://cdn.shopify.com/s/files/1/0432/8164/5736/files/94658186071.pdf
- https://cdn.shopify.com/s/files/1/0435/4398/6330/files/1771145837.pdf
- https://cdn.shopify.com/s/files/1/0440/5788/6870/files/71131846316.pdf
- https://cdn.shopify.com/s/files/1/0448/0398/1463/files/xodizuriwudebewodudunu.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_off0000685a.binc1bba604a5d05c5423de6635dfe15ef2e4153a9c5d0da190a79c4045244cb9ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x685A | 5280 bytes |
font_01_sfnt_off00007a2e.bindc6f2792fe5e0148dfab61c4ee819d2c953ac5dbfb02f7dd180d29966b4e3624 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A2E | 9736 bytes |
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