MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, many of which point to a link farm hosted on cdn.shopify.com, but one critical link redirects to a known malicious domain (ttraff.cc). The document body, though heavily obfuscated, contains the text 'Analysis and design of algorithms arora pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=analysis+and+design+of+algorithms+arora+pdf
- http://files.kellywalkottenphotography.com/uploads/1/3/1/4/131454883/zubelexaso.pdf
- https://cdn.shopify.com/s/files/1/0433/0808/9509/files/crop_online_tool.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovetutokukike.pdf
- https://cdn.shopify.com/s/files/1/0432/1827/2423/files/reservoir_dogs_subtitles.pdf
- https://cdn.shopify.com/s/files/1/0431/3828/5725/files/42285949263.pdf
- https://cdn.shopify.com/s/files/1/0430/7759/9383/files/diduvuxikuf.pdf
- https://cdn.shopify.com/s/files/1/0430/7084/9181/files/74608908234.pdf
- https://cdn.shopify.com/s/files/1/0432/3196/9438/files/sugutisaloxolavesag.pdf
- https://cdn.shopify.com/s/files/1/0431/2160/6820/files/fenux.pdf
- https://cdn.shopify.com/s/files/1/0434/5164/6119/files/another_word_for_dick.pdf
- https://cdn.shopify.com/s/files/1/0437/6815/2216/files/casio_fx_82ms_emulator.pdf
- https://cdn.shopify.com/s/files/1/0431/4519/9784/files/casio_protrek_manual_1471.pdf
- https://cdn.shopify.com/s/files/1/0432/5618/4992/files/wibujezojijugedipoxugiko.pdf
- https://cdn.shopify.com/s/files/1/0435/8687/9651/files/vuzameluriguwijodotopono.pdf
- https://cdn.shopify.com/s/files/1/0432/8531/5744/files/nogavurufuxiganumajexuga.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_off00004b00.bin82580a53bcaaf5dcc4e2976e0cbd07fe139b06ce7f170451fb16bcc324afedd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B00 | 5544 bytes |
font_01_sfnt_off00005db4.bin6ee327789a482c6974236e129a619fd563cecf6318a9e9e0ef25f0bc494f33b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DB4 | 10244 bytes |
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