PDF malware analysis — malicious · f0531df281372fbb

MALICIOUS

PDF

56.6 KB Created: 2020-03-24 22:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 94309e808257c0d299861caf5c58ff23 SHA-1: 426a6315c2bc5d6ad36002fc3ee575ab37322380 SHA-256: f0531df281372fbb62b6e5234b56178b780301ab746e27e83b3d9ebdedc7409c

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was detected by ClamAV as Pdf.Dropper.Agent-9464747-0. It contains a large number of external links, many of which are dynamically generated and point to PDF files, indicating a link farm or SEO spam operation. The document body, though partially corrupted, contains a title related to primary school math, likely used as a lure. The primary attack pattern involves redirecting users to a network of malicious websites.

Heuristics 4

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.
ClamAV: Pdf.Dropper.Agent-9464747-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-9464747-0
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://wwgoogetransport.com/uploads/1/3/0/4/130483697/130483697.html#sumas+llevando+2+de+primaria
- http://zotaknetworks.com/uploads/1/3/0/3/130380037/8784519.pdf
- http://aazraq.com/uploads/1/3/0/3/130312968/1462046.pdf
- http://nointernetweek.com/uploads/1/3/0/6/130603980/zomasovegiduf-buvigagedadusan-tagebiwox.pdf
- http://vivygirl-designs.com/uploads/1/3/0/4/130476216/tigogitupupu.pdf
- http://jinnyjoestudios.com/uploads/1/3/0/7/130738964/be8308390a8336.pdf
- http://missionmobilizationjonasmuyima.org/uploads/1/3/0/7/130738798/27919.pdf
- http://brownfencing.com/uploads/1/3/0/5/130590724/9442071.pdf
- http://idahononprofitservices.com/uploads/1/3/0/5/130589147/xigufe.pdf
- http://durgaconsulting.com/uploads/1/3/0/6/130620628/cdf913ef43d.pdf
- http://centerforpilates.com/uploads/1/3/0/6/130620873/zufepotudawejefi.pdf
- http://chadallers.com/uploads/1/3/0/8/130814728/tojapabufewevozivuzo.pdf
- http://konstrukcje-stalowe.com.pl/uploads/1/3/0/4/130491932/fejigejupesego.pdf
- http://customcomputer.shop/uploads/1/3/0/4/130478244/731740463133.pdf
- http://74-123-77-99.mgwnet.com/uploads/1/3/0/8/130874045/kigizemim.pdf
- http://christinawei.com/uploads/1/3/0/4/130483178/2882481.pdf
- http://kristianhricdesign.com/uploads/1/3/0/8/130873952/gugatigitiw_fowopofi.pdf
- http://hempoilsloutions.org/uploads/1/3/0/4/130475918/2239.pdf
- http://balaiodegarfos.com/uploads/1/3/0/6/130603853/fewomelozipusalavup.pdf
- http://citizens-medicare.com/uploads/1/3/0/6/130603861/gavinigad.pdf
- http://mrsseamonsclass.com/uploads/1/3/0/7/130775619/lurakokasumefujapi.pdf
- http://keanoscoffeeroasting.com/uploads/1/3/0/6/130639681/savozefalido.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_off0000a6f2.bin` `20702faa4ca83c37fe0db06f46fec126bc51c1e9f7259b10f897dcfceb8ecdff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA6F2	9292 bytes
`font_01_sfnt_off0000c871.bin` `985cbd9ba5b629f1b749d04d852c0eecb5d8ad374186a1044a60da9476420dc6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC871	2788 bytes

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