MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a mechanism to distribute malicious content. The presence of a PDF_SEO_LINK_FARM heuristic firing strongly suggests this intent. The document body, though obfuscated, contains URLs that are likely part of this distribution network.
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://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/5/130542692/130542692.html#ukulele+lessons+beginner+songs
- http://stayplaychildcare.com/uploads/1/3/0/7/130776699/xifik.pdf
- http://blendedci.net/uploads/1/3/0/8/130814279/8280095.pdf
- http://hostmaster.hairnv.salon/uploads/1/3/0/3/130323406/8fc18e73ed.pdf
- http://glkventuresinc.com/uploads/1/3/0/4/130435609/denag_xonugobibud_dumom_rivobanawe.pdf
- http://deeprootscider.com/uploads/1/3/1/3/131379276/zadigodujusaw.pdf
- http://minerup.com/uploads/1/3/0/8/130874130/118045.pdf
- http://ourhealthykingdom.com/uploads/1/3/0/8/130874264/37d9c684492cd1.pdf
- http://valeriafantozzi.com/uploads/1/3/0/6/130639956/2c399b09e.pdf
- http://stellarminiatureamericanshepherds.com/uploads/1/3/0/4/130488399/8125468.pdf
- http://simplyballroomgb.com/uploads/1/3/0/6/130620474/feselonogozixum.pdf
- http://losangeleshsdems.com/uploads/1/3/0/5/130538902/e199f89b9ccb8e6.pdf
- http://reliefforsudan.com/uploads/1/3/0/7/130775904/risoxetina.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_off00007c73.bin5b3233dfc7e3e90ceff374ced1a3c881aafe41fc2fc3e54974db429e4bdb837e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C73 | 8444 bytes |
font_01_sfnt_off00009ce1.bin779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CE1 | 16036 bytes |
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