MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=cecad.+cuestionario+educativo+cl%25C3%25ADnico+ansiedad+y+depresi%25C3%25B3n+pdf`. This URL is likely part of a phishing or scam campaign, attempting to lure users into clicking through to a malicious site. The document body, though heavily obfuscated, also contains this URL and other URLs hosted on Shopify, suggesting a link farm or content delivery network used to host malicious files. The ML classifier also strongly flagged this PDF as malicious.
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=cecad.+cuestionario+educativo+cl%25C3%25ADnico+ansiedad+y+depresi%25C3%25B3n+pdf
- http://files.sabahhomestaykualapenyu.com/uploads/1/3/1/3/131381006/dccab9590c8ea.pdf
- http://files.itsasign.biz/uploads/1/3/0/7/130775652/rubatuwasodof.pdf
- http://bazixirog.spirithorsetrc.org/uploads/1/3/1/8/131856772/podaxuzujo-gamobetep.pdf
- https://cdn.shopify.com/s/files/1/0433/3699/0885/files/tutamurexe.pdf
- https://cdn.shopify.com/s/files/1/0429/8525/9159/files/88462092781.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokixud.pdf
- https://cdn.shopify.com/s/files/1/0431/6643/3435/files/96764016595.pdf
- https://cdn.shopify.com/s/files/1/0430/8808/5145/files/gitilimofukuligivene.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/35751832584.pdf
- https://cdn.shopify.com/s/files/1/0434/1547/0245/files/raves.pdf
- https://cdn.shopify.com/s/files/1/0427/5293/4044/files/49283910633.pdf
- https://cdn.shopify.com/s/files/1/0435/8068/6495/files/adeste_fideles_satb.pdf
- https://cdn.shopify.com/s/files/1/0430/8906/8185/files/public_speaking_rubrics.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_off00004a21.bin3d340ae70626f88161691d1574030cd911234f3d960e7184f71026c27326c841 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A21 | 5440 bytes |
font_01_sfnt_off00005c83.bin134d142a981a43699bd7b79a81b616784e4032abe4a81f87ce7d7baaaa617624 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C83 | 10128 bytes |
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