MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text suggesting it is a 'solutions pdf' for 'mathematics a discrete introduction', a common lure for phishing or malware distribution. 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=mathematics+a+discrete+introduction+solutions+pdf
- http://files.nealybirthandlactation.com/uploads/1/3/0/7/130775025/93c4ce71e.pdf
- http://files.thechurchwithamission.com/uploads/1/3/1/3/131384643/bekoferugenidifu.pdf
- http://files.4riverscentercbd.com/uploads/1/3/0/7/130775280/56ab41c8e1124ea.pdf
- http://files.deerrunkc.com/uploads/1/3/0/8/130874509/2143582.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/6066/6274/files/biroranob.pdf
- https://cdn.shopify.com/s/files/1/0432/9770/2046/files/pekafafi.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/sopes.pdf
- https://cdn.shopify.com/s/files/1/0429/7539/5993/files/chipotle_order_form_printable.pdf
- https://cdn.shopify.com/s/files/1/0429/0691/0876/files/kiwawavavulu.pdf
- https://cdn.shopify.com/s/files/1/0437/0549/9803/files/84329445474.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30036161276.pdf
- https://cdn.shopify.com/s/files/1/0431/5371/9452/files/sawakepowu.pdf
- https://cdn.shopify.com/s/files/1/0428/3557/4943/files/36740814300.pdf
- https://cdn.shopify.com/s/files/1/0439/0970/9976/files/jikapu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94430640368.pdf
- https://cdn.shopify.com/s/files/1/0428/9629/4051/files/zuduse.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_off000063e9.binb1f08dcb15c1ad799bb5f4de3e92dddbde8bb3802b6f2fa6a86be62f0427238b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63E9 | 5400 bytes |
font_01_sfnt_off00007626.bin65758e2887fb6980a2e6a0582725b79e50fdfeedbf805cf40a4a5deb6a88defe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7626 | 14792 bytes |
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