MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, many of which point to potentially malicious redirectors or link farms. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used in conjunction with a lure for free textbook PDFs. The document body contains the target URL and a list of other URLs, suggesting a phishing or scam attempt to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=algebra+2+textbook+pdf+answers
- http://wirok.prairieshieldroofing.com/uploads/1/3/1/3/131398140/1023678.pdf
- http://gedatebid.2dconference.co.uk/uploads/1/3/1/4/131409909/xuwanodeko.pdf
- http://files.tannerscc.com/uploads/1/3/0/8/130874612/dewixerawoneg-nogidufonolomi-duziwi.pdf
- http://vigefu.runwildlivefree1.com/uploads/1/3/1/4/131438379/kebupoko_popikiguwal.pdf
- https://cdn.shopify.com/s/files/1/0431/7780/3925/files/arduino_assembly_language_programming.pdf
- https://cdn.shopify.com/s/files/1/0433/5442/3464/files/sivigaruv.pdf
- https://cdn.shopify.com/s/files/1/0435/1256/1819/files/radajipuvewivaji.pdf
- https://cdn.shopify.com/s/files/1/0434/7222/4421/files/wemizofugotajenilox.pdf
- https://cdn.shopify.com/s/files/1/0433/4062/8120/files/14803967160.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/wunelijibipidelukizago.pdf
- https://cdn.shopify.com/s/files/1/0432/8456/2084/files/digevet.pdf
- https://cdn.shopify.com/s/files/1/0432/9875/0619/files/8085_assembly_language_instruction_set.pdf
- https://cdn.shopify.com/s/files/1/0440/1332/2398/files/31355048560.pdf
- https://cdn.shopify.com/s/files/1/0432/3265/7575/files/40311574561.pdf
- https://cdn.shopify.com/s/files/1/0433/9489/1943/files/ladusadazujeselibisi.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_off000063ff.binb5c1c3bc066fc61f8643b5e2d63119404ba0f401d91b4b8542ef93767799e938 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63FF | 5692 bytes |
font_01_sfnt_off0000778d.bine14cef2d991becaf05fb55ff199e72bbf68be94ea4ba261d3d1f2faf161a1c74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x778D | 10408 bytes |
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