MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, including one pointing to the malicious redirector `https://ttraff.com/pify?keyword=algebraic+structures+in+discrete+mathematics+pdf`. This URL is flagged as malicious and likely serves as a lure to a phishing or malware distribution site. The document body, though partially corrupted, contains text related to academic PDFs and the wkhtmltopdf tool, suggesting a social engineering pretext. The ML classifier 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=algebraic+structures+in+discrete+mathematics+pdf
- http://files.zuzubeanpress.com/uploads/1/3/0/7/130776786/9d2bf.pdf
- http://files.eyretonponyclub.com/uploads/1/3/0/9/130969153/7674e0e5b687.pdf
- http://files.lemeadowspantry.com/uploads/1/3/1/3/131379290/6305158.pdf
- http://tojonen.aierossmann.com/uploads/1/3/1/0/131070476/1885330.pdf
- https://cdn.shopify.com/s/files/1/0431/1390/6327/files/11681741483.pdf
- https://cdn.shopify.com/s/files/1/0431/2684/9700/files/nikozinijug.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52876055892.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
- https://cdn.shopify.com/s/files/1/0433/0065/1158/files/70432392137.pdf
- https://cdn.shopify.com/s/files/1/0431/6259/9586/files/86335428633.pdf
- https://cdn.shopify.com/s/files/1/0440/5755/9190/files/89480648355.pdf
- https://cdn.shopify.com/s/files/1/0428/0736/1703/files/47418702597.pdf
- https://cdn.shopify.com/s/files/1/0435/3661/3544/files/62147363518.pdf
- https://cdn.shopify.com/s/files/1/0430/7045/5965/files/teraka.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007492.bin61d13037d824cccdfb8e59f5354fa10978396d58423d16b0829ab709dff5e48f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7492 | 5700 bytes |
font_01_sfnt_off000087c1.bine5775026017dcb669c7af6c062684c4323765c3d19aefa67ee2dbc0e65401184 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87C1 | 14904 bytes |
font_02_sfnt_off0000b5a5.binfd25210be9eb1f9757a25d943f28e7fcf096fe665e9084197a2ee29d13022539 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A5 | 16096 bytes |
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