MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at `https://ttraff.ru/wb?keyword=conjuguemos%20grammar%20worksheet%20ser%20vs%20estar%20answers`. The document body, though partially corrupted, also contains this URL and appears to be a lure disguised as a grammar worksheet. The presence of a link farm heuristic further suggests a malicious intent to distribute links, likely for SEO poisoning or to drive traffic to malicious sites.
Heuristics 3
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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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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/wb?keyword=conjuguemos%20grammar%20worksheet%20ser%20vs%20estar%20answers
- http://files.jclandscapingandmasonry.com/uploads/1/3/2/6/132683137/82d8bf5.pdf
- http://files.jngibson.com/uploads/1/3/1/4/131483830/15eebf4013975.pdf
- http://tulivobeg.mattmanalo.com/uploads/1/3/1/1/131163599/32a7cf9b59a8.pdf
- http://maselak.boylepublichealth.com/uploads/1/3/2/7/132711973/zetajazudede.pdf
- http://nazafulel.patticarmen.com/uploads/1/3/0/7/130739625/dd75f59.pdf
- https://cdn.shopify.com/s/files/1/0434/0760/5923/files/5160189195.pdf
- https://cdn.shopify.com/s/files/1/0432/2246/6720/files/liwirarikasefawegonari.pdf
- https://cdn.shopify.com/s/files/1/0431/8144/1181/files/41385550926.pdf
- https://cdn.shopify.com/s/files/1/0429/3469/8147/files/bizhub_c224e_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/3287/0037/files/the_wiggles_splish_splash_big_red_boat.pdf
- https://cdn.shopify.com/s/files/1/0429/1805/1996/files/cumulative_distribution_function_and_difference.pdf
- https://cdn.shopify.com/s/files/1/0435/4228/2399/files/40360331684.pdf
- https://cdn.shopify.com/s/files/1/0429/7120/1695/files/xerolix.pdf
- https://cdn.shopify.com/s/files/1/0431/0165/1105/files/bajosuvufokivazekofibarap.pdf
- https://cdn.shopify.com/s/files/1/0433/6487/6453/files/nuxezu.pdf
- https://cdn.shopify.com/s/files/1/0430/9565/4567/files/labavufes.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15796621189.pdf
- https://cdn.shopify.com/s/files/1/0432/6519/6197/files/55072035321.pdf
- https://cdn.shopify.com/s/files/1/0434/7373/1741/files/77730992349.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_off000054b5.bin8708c73f7861ed83664b0ca43114c5851e6d93fd8f2f50353655d2fb687b2dda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54B5 | 5264 bytes |
font_01_sfnt_off00006690.bin7a8adc9a7561bbc20f7500870c7b16fdf531c2c3a4eb8f16938cfcdd3b72c4a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6690 | 10796 bytes |
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