MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Calvin and Hobbes comics free'. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or redirection scheme designed to lead users to malicious 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.cc/pify?keyword=calvin+and+hobbes+comics+free
- http://xolapuw.amylchapman.com/uploads/1/3/1/6/131606592/kunemosigojixu_netorabodufuf.pdf
- http://ranusim.romanacoutureshop.com/uploads/1/3/0/7/130775362/pesidaxetukul.pdf
- http://xaduk.sheffieldcctvsystems.com/uploads/1/3/0/8/130813821/nibuv_ponalenalidul_pujete.pdf
- http://files.laxgear4u.com/uploads/1/3/2/6/132695492/valevoruwoxofome.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/3512/3102/files/sizonupaxubasirisuw.pdf
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/sister_location_map.pdf
- https://cdn.shopify.com/s/files/1/0435/2606/2239/files/mevejovajomozunamimigurub.pdf
- https://cdn.shopify.com/s/files/1/0431/6830/1212/files/muwemomobegedove.pdf
- https://cdn.shopify.com/s/files/1/0444/8783/5815/files/76227142695.pdf
- https://cdn.shopify.com/s/files/1/0432/7643/5621/files/xarili.pdf
- https://cdn.shopify.com/s/files/1/0430/8297/3346/files/59210642714.pdf
- https://cdn.shopify.com/s/files/1/0428/5654/6467/files/eldritch_knight_5e_guide.pdf
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/american_dream_in_death_of_a_salesman_research_paper.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_off000159f7.binaaedab15be3754457cea668c2b346912aec2d1bf4affaf3e14dc2de1d7b0a1f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159F7 | 5368 bytes |
font_01_sfnt_off00016c0d.bine51517c1c497a4b479136701b8803c5b48dadfa02670db416946fbb71ec58e84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16C0D | 12860 bytes |
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