MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious linking behavior. No scripts were extracted, but the sheer volume of outbound links suggests a malicious intent to redirect the user.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://anatoly-nikolsky.com/uploads/1/3/0/6/130620642/130620642.html#B%C3%BCcher+der+Bibel+in+chronologischer
- http://so-blessed-bling.com/uploads/1/3/0/7/130739517/tedesigafidabokixose.pdf
- http://createdgamers.com/uploads/1/3/1/3/131379041/dawirut-xolunewib.pdf
- http://heavenly-couture.shop/uploads/1/3/1/4/131453735/zenomiji_dabobajavev_tagono.pdf
- http://blessedeventchildbirthservices.com/uploads/1/3/0/6/130603936/soboxuzes-jaduxanaputa.pdf
- http://motivationalresearch.org/uploads/1/3/0/9/130969449/3699492.pdf
- http://workout-strong.com/uploads/1/3/0/2/130288939/1747137.pdf
- http://ryegentrytrucking.com/uploads/1/3/0/6/130621926/5240407.pdf
- http://baconsmilesministry.com/uploads/1/3/0/7/130776324/kakinorokalezudekawa.pdf
- http://ontherolljoplin.com/uploads/1/3/0/7/130739430/notabemew.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ada8.binc94f5aaede3d8e64248527352fe18d22fa15c712c8d64713e30399abe306b12a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADA8 | 9140 bytes |
font_01_sfnt_off0000cf0c.bin779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF0C | 16036 bytes |
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