MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though obfuscated, contains the same URL and appears to be a lure for educational content. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. 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=free+irony+worksheets+for+middle+school
- http://files.holtowltrail.co.uk/uploads/1/3/0/7/130775017/gukiko.pdf
- http://files.iconiacapital.com/uploads/1/3/1/3/131398142/begifuzan.pdf
- http://xosuwuje.laurencoletta.org/uploads/1/3/1/4/131453028/deginazalegi.pdf
- http://lufezev.barsbywillisphotography.com/uploads/1/3/1/4/131453323/4736712.pdf
- http://files.asofortworth.com/uploads/1/3/1/8/131858592/1641887.pdf
- https://cdn.shopify.com/s/files/1/0454/6340/4694/files/android_phones_that_will_support_fortnite.pdf
- https://cdn.shopify.com/s/files/1/0430/3133/0969/files/58607442842.pdf
- https://cdn.shopify.com/s/files/1/0428/7689/5388/files/91111702432.pdf
- https://cdn.shopify.com/s/files/1/0429/4960/7590/files/70643342006.pdf
- https://cdn.shopify.com/s/files/1/0436/2692/2146/files/74170252046.pdf
- https://cdn.shopify.com/s/files/1/0431/3595/9191/files/nipumobazato.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexuxedixu.pdf
- http://www.readwritethink.org/classroom-resources/lesson-plans/understanding-irony-31142.html
- 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_off000068e8.binc2441204c391d985540af5621c1bb7ea83ab34478a2d649e25c079ebb04d5258 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68E8 | 5264 bytes |
font_01_sfnt_off00007ac3.bin4c00291a389187360aaa81d58204e33a5ba5b26d41f8d2affa27320119d6d55d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AC3 | 10192 bytes |
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