MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to academic content, suggesting a lure to trick users into clicking the malicious links. The presence of a PDF redirector link and a link farm indicates an attempt to drive traffic to potentially malicious sites.
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=thermochemistry+and+hess+law+post+lab+answers
- http://files.roberthillpsychologist.com/uploads/1/3/2/8/132814791/tasunenixa.pdf
- http://files.preacherman.org/uploads/1/3/2/6/132682731/7674231.pdf
- http://files.westwaweimclub.org/uploads/1/3/0/7/130776312/534aa7963c11a78.pdf
- https://cdn.shopify.com/s/files/1/0431/9186/1412/files/45965739791.pdf
- https://cdn.shopify.com/s/files/1/0434/2608/7064/files/japapazo.pdf
- https://cdn.shopify.com/s/files/1/0430/7232/3737/files/zunofomujujepalikufiv.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/4003416871.pdf
- https://cdn.shopify.com/s/files/1/0431/9703/8756/files/nubazepifeperidoraranar.pdf
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/nelesuxuwulejolena.pdf
- https://cdn.shopify.com/s/files/1/0438/2484/0861/files/tufogutasilorisi.pdf
- https://cdn.shopify.com/s/files/1/0430/1537/2949/files/25188533501.pdf
- https://cdn.shopify.com/s/files/1/0428/8000/8355/files/68224318496.pdf
- https://cdn.shopify.com/s/files/1/0440/8374/0822/files/donaz.pdf
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/zovogotekutetavaga.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.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_off00008fff.bin26aff0798af1f32d695b1e59ac3d796ace988a37dd3dccb085e236d5722e45a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FFF | 5384 bytes |
font_01_sfnt_off0000a22a.bin20c9f77bbfebe120dc7663f6c84a33a80e28a4898459a5c8862cbf8729a218ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA22A | 10828 bytes |
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