MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains text that appears to be a lure for educational materials, specifically referencing 'Zumdahl chemistry 9th edition solutions pdf'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the embedded URL. The ML classifier also strongly indicated maliciousness.
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=zumdahl+chemistry+9th+edition+solutions+pdf
- http://files.gmgaentertainmentproductions.com/uploads/1/3/1/4/131454052/2670412.pdf
- http://files.handystansplumbing.com/uploads/1/3/0/7/130776490/5474087.pdf
- http://files.dcpd.ca/uploads/1/3/1/8/131872037/8985160.pdf
- https://cdn.shopify.com/s/files/1/0431/5525/9560/files/44357313787.pdf
- https://cdn.shopify.com/s/files/1/0432/2826/6654/files/83723179507.pdf
- https://cdn.shopify.com/s/files/1/0434/2353/1175/files/zoxegofifisoborataz.pdf
- https://cdn.shopify.com/s/files/1/0431/8475/0741/files/livajexamigoderunuzaweja.pdf
- https://cdn.shopify.com/s/files/1/0431/7233/1675/files/60900515937.pdf
- https://cdn.shopify.com/s/files/1/0437/4616/4897/files/88025724.pdf
- https://cdn.shopify.com/s/files/1/0432/9360/6046/files/goforazezexuselow.pdf
- https://cdn.shopify.com/s/files/1/0431/7573/9553/files/7942578967.pdf
- https://cdn.shopify.com/s/files/1/0432/7194/6396/files/50207523664.pdf
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/50374984179.pdf
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/68197385282.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_off0000c9d1.bin82a555155e1433e67f841ec65ec05b272a41eb4d30bb6af6cca2cbc27cc3c925 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9D1 | 5612 bytes |
font_01_sfnt_off0000dcc3.bin2400d6dcb7dbf5a084318b2e7065f6ed799a51a986f1de99519089c0b2b0d23b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC3 | 11008 bytes |
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