PDF malware analysis — malicious · fd42f1ce28f101e9

MALICIOUS

PDF

43.2 KB Created: 2020-05-25 12:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9bfbfd32b3ce1be1c752f77cc4992cb4 SHA-1: 51b4b0bc93cbae9cff26a55433c0f9ade3365138 SHA-256: fd42f1ce28f101e9c1fd590fa80b9e91127628d1804f894cf355005ab572a0d6

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to SEO-optimized PDF files hosted on various domains. This pattern is indicative of a link farm designed to distribute malicious content or redirect users to phishing sites. The ML classifier strongly supports the malicious verdict, and the presence of numerous external URIs confirms the link farm behavior.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small 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.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://mooiskin.net/uploads/1/3/1/0/131071151/131071151.html#appvn+pro+apk+english+version
- http://nowmetoo.com/uploads/1/3/0/8/130874109/sugosilefilerare.pdf
- http://hydrolactic.com/uploads/1/3/0/4/130478163/1126752.pdf
- http://born2vape.net/uploads/1/3/0/4/130493893/484435.pdf
- http://stamenandpistil.net/uploads/1/3/0/5/130588749/9948274.pdf
- http://mystical-mesquite.com/uploads/1/3/1/6/131637307/83e8332c4c0fc.pdf
- http://nmsapa.com/uploads/1/3/0/2/130287242/339158.pdf
- http://1886films.com/uploads/1/3/0/7/130739131/9981326.pdf
- http://minursespac.com/uploads/1/3/1/8/131858540/vixenimoj-dozogivurujalet-fiwonurimox-mugekifo.pdf
- http://turnernco.com/uploads/1/3/1/3/131379554/6938e240cc.pdf
- http://notariusznazoliborzu.pl/uploads/1/3/1/3/131381658/bejidebunese-nimibiz.pdf
- http://steamistparts.com/uploads/1/3/1/8/131871739/pokujiropu.pdf
- http://mediaminduae.com/uploads/1/3/0/6/130604935/2554453.pdf
- http://carpetcleangalway.com/uploads/1/3/0/5/130588157/relutirizobirimej.pdf
- http://honeyskinnblast.com/uploads/1/3/1/3/131383594/9189843.pdf
- http://pursuit.website/uploads/1/3/0/6/130621715/daxara.pdf
- http://millie-millie.com/uploads/1/3/0/8/130874222/620f55750ce10d.pdf
- http://savvywellness.ca/uploads/1/3/1/4/131452890/c582cd40515c9.pdf
- http://krisztiansandidge.com/uploads/1/3/0/6/130603979/tisor.pdf
- http://cxmsu.com/uploads/1/3/0/6/130621691/131104.pdf
- http://jakfrostmusic.com/uploads/1/3/0/7/130738996/kenurekixalopiruma.pdf
- http://winstonsalemkids.com/uploads/1/3/1/8/131871993/matuwezunasewume.pdf
- http://wops-shop.us/uploads/1/3/0/6/130639740/kinaroba.pdf
- http://wibier.nl/uploads/1/3/0/9/130969065/rejakot.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_off000070e0.bin` `876f2710ca4ee4c99967ebf2dcde400d7c2801aafe93c40cf90aeabbaea625cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70E0	2552 bytes
`font_01_sfnt_off00007bdf.bin` `9a3db08392bf783b07f6d3f5d31c680ecbc4bf30a8b6d7559a84a817af3f1b9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BDF	11444 bytes

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