MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=coller+deux+fichier+pdf+ensemble', is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to combining PDF files and mentions 'wkhtmltopdf', suggesting a social engineering pretext. The presence of numerous other Shopify-hosted PDF links indicates a potential link farm or distribution method. The ML classifier strongly indicated maliciousness.
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=coller+deux+fichier+pdf+ensemble
- http://files.thenorthwoodsnews.com/uploads/1/3/0/8/130874043/4747433.pdf
- http://files.bobodigitalmarketing.com/uploads/1/3/1/3/131380583/vemikota_manudageb.pdf
- http://files.jsnoelcollection.org/uploads/1/3/2/6/132681969/jipipigokalegox_zugakekugesako.pdf
- https://cdn.shopify.com/s/files/1/0449/9701/7768/files/javascript_save_file_to_disk.pdf
- https://cdn.shopify.com/s/files/1/0430/9244/3303/files/tukeg.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
- https://cdn.shopify.com/s/files/1/0431/5529/2321/files/56277260748.pdf
- https://cdn.shopify.com/s/files/1/0432/5461/2123/files/81868714159.pdf
- https://cdn.shopify.com/s/files/1/0432/4166/8775/files/ccna_routing_and_switching_espaol.pdf
- https://cdn.shopify.com/s/files/1/0431/3815/4653/files/texubibozexapokipo.pdf
- https://cdn.shopify.com/s/files/1/0430/2068/1377/files/sejiduxima.pdf
- https://cdn.shopify.com/s/files/1/0427/4854/3142/files/ielts_reading_answer_sheets.pdf
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/bosifofolut.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_off0000617e.bin94b0c96ec2c97ffbea826631ea241031d1376e44ccebe111e20deeef67897570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x617E | 5300 bytes |
font_01_sfnt_off00007356.bine75007d3dac2bee4dbc0b19b4b9c6aa387dd7b6858ae0b166a9eafe0d443df96 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7356 | 11936 bytes |
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