MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a link farm, with numerous links pointing to Shopify domains, likely to obscure the true malicious destination. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru', which is used to deliver the final payload. The document body, though heavily obfuscated, contains text related to 'aptitude test questions pdf', serving as a lure.
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=aptitude+test+questions+pdf
- http://files.growwithmehomechildcare.com/uploads/1/3/2/6/132682808/dalosimuzubatup-vatemegi.pdf
- http://files.pheobeandlulu.com.au/uploads/1/3/1/4/131407823/8829528.pdf
- http://files.eceprek.com/uploads/1/3/2/8/132814050/9665404.pdf
- http://files.jordangirardin.com/uploads/1/3/1/4/131409264/c40211.pdf
- https://cdn.shopify.com/s/files/1/0431/4906/6397/files/zekamakufurabigosar.pdf
- https://cdn.shopify.com/s/files/1/0429/2375/3635/files/tetoxorexa.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/91408914644.pdf
- https://cdn.shopify.com/s/files/1/0435/6790/6979/files/madevetew.pdf
- https://cdn.shopify.com/s/files/1/0432/7886/0454/files/pamatipamizagenekugexa.pdf
- https://cdn.shopify.com/s/files/1/0430/0007/0307/files/37457457760.pdf
- https://cdn.shopify.com/s/files/1/0434/9168/8610/files/67792757915.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dazexirorojukulovamedifuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdf
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/lunamit.pdf
- https://cdn.shopify.com/s/files/1/0437/9957/6733/files/3042621242.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_off000075d5.bina3606a728f716abb5b0416dab2fe88b94642e548c3504e2b4c316700f3bf8ce8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75D5 | 4696 bytes |
font_01_sfnt_off000085dc.bin6db272b17472ef995f3d371635ba26c30cd9d6547861945802ff6ea7e80090d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85DC | 14524 bytes |
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