MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, disguised as a helpful document about reducing PDF file sizes. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the URL that is also flagged by heuristics as a malicious redirector.
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.com/pify?keyword=hoe+een+pdf+bestand+kleiner+maken
- http://files.cliftonclimateaction.org/uploads/1/3/0/7/130775196/velajugawi.pdf
- http://zupipedat.dianehulseartist.com/uploads/1/3/0/7/130775129/0c504b0fc4b2f91.pdf
- http://files.aquafloradesign.com/uploads/1/3/0/7/130776150/tufekutan-remif-kasusabuk-manil.pdf
- http://pasig.nekrologik.com/uploads/1/3/2/8/132816066/017124.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9455/7350/files/53173314116.pdf
- https://cdn.shopify.com/s/files/1/0434/5711/8374/files/wakujubiveg.pdf
- https://cdn.shopify.com/s/files/1/0430/0960/5791/files/75707993446.pdf
- https://cdn.shopify.com/s/files/1/0438/3119/7856/files/53528650185.pdf
- https://cdn.shopify.com/s/files/1/0431/8488/1825/files/zokaxopifekotobodanugoxef.pdf
- https://cdn.shopify.com/s/files/1/0428/3419/8684/files/bujeditomaxoliterulewadez.pdf
- https://cdn.shopify.com/s/files/1/0434/1468/3815/files/webetogaxepulafu.pdf
- https://cdn.shopify.com/s/files/1/0435/2763/5095/files/over_and_over_again_lyrics_nelly.pdf
- https://cdn.shopify.com/s/files/1/0436/2331/7662/files/jugawut.pdf
- https://cdn.shopify.com/s/files/1/0431/5561/9994/files/the_axial_skeleton_review_sheet.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a4ba.bin9aedfe1ffe8d84155e8903688edfd4d452cb9dcc613840e13c5ca770c60dd1a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4BA | 5352 bytes |
font_01_sfnt_off0000b6d2.bin358e254cc2cdf5eff05121378c5a1d6ae65c92769bcc39455436d8eb3610dc93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6D2 | 10764 bytes |
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