MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=bstc+model+paper+2020+pdf+download'. This suggests the document is designed to trick users into visiting malicious sites under the guise of providing a downloadable PDF. The ML classifier strongly supports the malicious verdict.
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=bstc+model+paper+2020+pdf+download
- http://files.buchanans-store.com/uploads/1/3/1/1/131163643/263bb6a4cc3c1c.pdf
- http://files.whitneykimpton.com/uploads/1/3/1/8/131871692/7010048.pdf
- http://files.discoveringmagicinpixels.com/uploads/1/3/1/3/131381376/e92297403043.pdf
- https://cdn.shopify.com/s/files/1/0430/9073/9361/files/79349646660.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64630415929.pdf
- https://cdn.shopify.com/s/files/1/0433/9200/8357/files/harry_potter_house_logos.pdf
- https://cdn.shopify.com/s/files/1/0432/3495/1331/files/our_god_is_an_awesome_god_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0433/4754/2165/files/instrumen_penilaian_akreditasi_puskesmas.pdf
- https://cdn.shopify.com/s/files/1/0428/5834/8703/files/49458310335.pdf
- https://cdn.shopify.com/s/files/1/0431/4336/4759/files/75083175560.pdf
- https://cdn.shopify.com/s/files/1/0433/6146/8567/files/tolunix.pdf
- https://cdn.shopify.com/s/files/1/0428/3056/1436/files/48154675178.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdf
- https://cdn.shopify.com/s/files/1/0430/6078/9409/files/rulevazaxugetovorujijage.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_off00005b4f.bin95d9229cd92678be1e6471705f3e4ee6e0e3ea0b2b1431adc2fadbfde734aba2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B4F | 5716 bytes |
font_01_sfnt_off00006ec3.bin1ceb19c7cae89c4c9943a1e67e9f22ddab0dc394d5968a68af68228ed96b4566 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EC3 | 10012 bytes |
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