MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'efficient electrical systems design handbook pdf' and the 'wkhtmltopdf' application, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
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=efficient+electrical+systems+design+handbook+pdf
- http://files.4arrowsoutdoors.com/uploads/1/3/0/8/130814672/1910526.pdf
- http://files.aquaclearpx.com/uploads/1/3/1/1/131164476/titafifis.pdf
- http://files.michaels-photography.net/uploads/1/3/1/8/131871569/2738659.pdf
- http://files.meanscenecomics.com/uploads/1/3/0/7/130740191/a67e419b84bfc.pdf
- https://cdn.shopify.com/s/files/1/0427/5834/0774/files/biranepi.pdf
- https://cdn.shopify.com/s/files/1/0428/5746/3964/files/55321648808.pdf
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/71662802925.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3089/files/dunakumofibisalewuz.pdf
- https://cdn.shopify.com/s/files/1/0432/3305/0779/files/lopulumij.pdf
- https://cdn.shopify.com/s/files/1/0428/2010/8455/files/kupejezovaxevilexuzi.pdf
- https://cdn.shopify.com/s/files/1/0430/2969/2577/files/60866257682.pdf
- https://cdn.shopify.com/s/files/1/0436/4579/6512/files/gotik.pdf
- https://cdn.shopify.com/s/files/1/0435/1862/3896/files/xukawapodufosado.pdf
- https://cdn.shopify.com/s/files/1/0436/5461/1102/files/gusalolivavisilimuf.pdf
- https://cdn.shopify.com/s/files/1/0440/6594/7798/files/fbr_amnesty_scheme_2020.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_off00005ede.binb8ff110afc133afbdbba36704b6d0c80d481f8a43517bcb4289504b89847755a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EDE | 5832 bytes |
font_01_sfnt_off00007287.bin4ed7bfef050ce79a6e983789f6b57c26146f8a95377cb1f071ae520706f70354 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7287 | 10248 bytes |
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