MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text that appears to be a lure for a PDF download, further supported by the presence of many Shopify-hosted PDF links. The primary IOC is the malicious redirector URL, which likely leads to a further stage of the attack.
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=biometry+4th+edition+pdf
- http://rijinido.morethansoulfood.net/uploads/1/3/1/0/131070786/zisowabopusanezer.pdf
- http://files.bareraydiance.com/uploads/1/3/2/7/132740533/4a3f5348eff1f7e.pdf
- http://files.reikiwomb.com/uploads/1/3/0/7/130738531/ditilo-wifozo-zelez.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0446/6973/0979/files/astrobiology_magazine.pdf
- https://cdn.shopify.com/s/files/1/0437/9289/2053/files/gawasewopopakasezizedotad.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botudurodakokebavexosox.pdf
- https://cdn.shopify.com/s/files/1/0431/1796/9570/files/2182172946.pdf
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/kebib.pdf
- https://cdn.shopify.com/s/files/1/0428/6421/4175/files/biography_poem_template.pdf
- https://cdn.shopify.com/s/files/1/0430/2720/2205/files/small_convert_to_ppt.pdf
- https://cdn.shopify.com/s/files/1/0431/2625/9876/files/69534507548.pdf
- https://cdn.shopify.com/s/files/1/0431/2704/6301/files/56759529853.pdf
- https://cdn.shopify.com/s/files/1/0434/4266/7676/files/bajovalubim.pdf
- https://cdn.shopify.com/s/files/1/0428/3564/0487/files/abbottabad_commission_report_pdf_download.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_off000045a8.bin6605d766e63d22911897eb3ac0afee502f236360f4d7fa88ce6bdbd34f0473d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45A8 | 5100 bytes |
font_01_sfnt_off000056e8.bin0a5fa6df31920d8572a57336de84b2ff0642f3bbc3e5f07d5569596115fb2ff8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56E8 | 10004 bytes |
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