MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a 'Cpa compilation report sample'. This redirector likely leads to further malicious content or exploits. The PDF also functions as a link farm, pointing to numerous external PDFs, many hosted on Shopify. The ML classifier strongly indicated maliciousness, supporting the heuristic findings.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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.cc/pify?keyword=cpa+compilation+report+sample
- http://files.alpenaoptimistclub.com/uploads/1/3/0/7/130738928/342ff1.pdf
- http://files.smithprojects.com/uploads/1/3/2/7/132741433/gibidekofo-matidexe.pdf
- http://files.academycounselling.com/uploads/1/3/2/6/132695679/sokepobegid.pdf
- http://febovena.baystatesurgery.org/uploads/1/3/1/1/131164250/33a46b03.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78394199391.pdf
- https://cdn.shopify.com/s/files/1/0430/5872/5015/files/ragopetuvesijogigafize.pdf
- https://cdn.shopify.com/s/files/1/0434/6173/8662/files/essentials_of_cardiopulmonary_physical_therapy_4e.pdf
- https://cdn.shopify.com/s/files/1/0434/7694/3000/files/83430403363.pdf
- https://cdn.shopify.com/s/files/1/0464/8465/2184/files/math_gallon_man_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0431/0935/1585/files/91885058681.pdf
- https://cdn.shopify.com/s/files/1/0431/7144/6939/files/current_affairs_awards_and_honours_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/7668/0870/files/gumif.pdf
- https://cdn.shopify.com/s/files/1/0439/6548/1118/files/canoeing_merit_badge_pamphlet.pdf
- https://cdn.shopify.com/s/files/1/0437/2345/6661/files/zofobinixojivikasufed.pdf
- https://cdn.shopify.com/s/files/1/0433/9938/1157/files/nudawewaziw.pdf
- https://cdn.shopify.com/s/files/1/0443/1210/1020/files/imposible_cargar_la_imagen_html2pdf.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006939.bin4a5f5f0b76d39baac39fba4e27bf20781f24ab8cd0a9f84594920105a32b36b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6939 | 4888 bytes |
font_01_sfnt_off000079ae.binbbcdda86ce859652f7b4fd20801ef5a371b49cc790af071ded6e117f93be0751 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79AE | 10572 bytes |
font_02_sfnt_off00009ded.bin1c8bc4bf779fdf5fdd428ab6ddc6a1665d3fdc1c26b4364692bd94c1ed605b78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DED | 16364 bytes |
font_03_sfnt_off0000b3c1.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C1 | 4324 bytes |
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