MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=esl+guided+reading+books`. This link is presented in the document body under the guise of educational materials. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector is likely social engineering via a deceptive link.
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=esl+guided+reading+books
- http://files.raisingbasketballplayers.com/uploads/1/3/0/8/130813855/9331172.pdf
- http://files.visionssupplyanddesign.com/uploads/1/3/1/0/131071258/kadiki-wofelesagetab.pdf
- http://nitej.ulrichmotorsco.com/uploads/1/3/0/8/130873826/4599024.pdf
- http://files.animalwonders.org/uploads/1/3/2/6/132681294/xetoloxedawiled-lasiniludizo-levir.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/bipekozedujebazofajisajos.pdf
- https://cdn.shopify.com/s/files/1/0437/5743/7080/files/accordance_shelly_crane.pdf
- https://cdn.shopify.com/s/files/1/0432/6670/3516/files/88664092807.pdf
- https://cdn.shopify.com/s/files/1/0438/3798/0834/files/6283443081.pdf
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/75005999135.pdf
- https://cdn.shopify.com/s/files/1/0441/2653/5832/files/anarchist_library.pdf
- https://cdn.shopify.com/s/files/1/0434/0498/4483/files/zodadavewipisebomemejav.pdf
- https://cdn.shopify.com/s/files/1/0431/6191/1460/files/49558542293.pdf
- https://cdn.shopify.com/s/files/1/0440/5785/4102/files/cossacks_3_strategy_guide.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_off0000649d.bin4a803da2a01040311894d80ba873463cf57730131dde348cf45c8460cf08558d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x649D | 5156 bytes |
font_01_sfnt_off0000762c.bin6034dc36453819b1c0953a7cfec00271cdf7cbeacc96e9ecdc84f01e18cd26ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762C | 10044 bytes |
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