MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, many of which point to other PDFs hosted on various domains, suggesting a link farm or redirection mechanism. The ML classifier strongly indicates maliciousness, and the presence of numerous algorithmically generated URLs points towards a campaign designed to distribute further malicious content. No scripts were extracted, but the structure implies a lure to download additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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External URI info PDF_URIPDF contains an external URL action
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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 http://virtualbas.net/uploads/1/3/0/6/130621390/130621390.html#computer+integrated+manufacturing+3rd+edition+pdf
- http://eliteliving.shop/uploads/1/3/1/6/131636763/fidogaxifutoxupipig.pdf
- http://fungfound.org/uploads/1/3/0/6/130604359/lemuf.pdf
- http://pastorgregj.com/uploads/1/3/0/6/130621331/0f6206cede2330.pdf
- http://solsticeastrology.com/uploads/1/3/2/6/132682647/20fae4.pdf
- http://ideparishchurch.com/uploads/1/3/0/8/130874352/nunuz.pdf
- http://willowhillwelshtx.com/uploads/1/3/0/5/130588518/xutaverefekelomawejo.pdf
- http://equi-presence.com/uploads/1/3/0/4/130435772/1465830.pdf
- http://thriftstorehemet.com/uploads/1/3/1/8/131856772/4308687.pdf
- http://creativeconcreterentalandsupply.com/uploads/1/3/1/0/131070010/2856792.pdf
- http://ingeborgmohr.com/uploads/1/3/0/4/130476270/savatusodifeluxufud.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://hostmaster.castlegroup.uk.com/uploads/1/3/1/4/131482884/3498158.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_off00004e83.bin24cd4eec8cf6561a5fe49a5c6de038ba6a869317e3a9470e47e993c29d48d0ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E83 | 5336 bytes |
font_01_sfnt_off00006097.bin18e22ee1fbef02898738fad12f781aabf7367894787ee367f193fd66ae2d2247 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6097 | 9308 bytes |
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