PDF malware analysis — malicious · 9bb8d69b15ddc6bd

MALICIOUS

PDF

47.2 KB Created: 2020-03-15 15:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 999520cec62df602269fa2acf28f359e SHA-1: 676c1a344c9cf416c2aee524b0db50ea9be63c08 SHA-256: 9bb8d69b15ddc6bd77505368457af4a4618a20f240e14f76c7fe129b815a198b

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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The ML classifier also flagged this PDF as malicious. The document body contains a seemingly innocuous title along with the PDF generation tool information, but the primary malicious activity appears to be the distribution of numerous external links, likely to distribute malware or engage in SEO spam.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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://host209.carmichaelnl.com/uploads/1/3/1/0/131070971/131070971.html#good+morning+photos++hd+free+2019
- http://serveathon.net/uploads/1/3/0/5/130551526/wiluxirigesobelalipa.pdf
- http://mississippi-ted.com/uploads/1/3/0/2/130291358/rewaratifo.pdf
- http://forgelouisville.net/uploads/1/3/0/2/130271031/daxujusipu.pdf
- http://zerbuki.space/uploads/1/3/0/4/130476143/wodoto_komipag_tubamaxa.pdf
- http://thefamilyfunband.com/uploads/1/3/0/7/130776571/ac9617f12.pdf
- http://www.cambridgelocksmithservice.co.uk/uploads/1/3/0/7/130776331/gokevo-rurixemiso-dajexoma-zekip.pdf
- http://turnerfamilynz.com/uploads/1/3/0/7/130775009/1405138.pdf
- http://maritimeinsurancebroker.net/uploads/1/3/0/4/130477468/tigiwepoz.pdf
- http://abigail-smith-illustration.co.uk/uploads/1/3/0/7/130738994/saxubirar.pdf
- http://tennisbuddy4u.org/uploads/1/3/0/4/130483086/e636c51558258f.pdf
- http://stbrendansreds.com/uploads/1/3/0/6/130604476/kunupap.pdf
- http://coastalequipmentrental.org/uploads/1/3/0/3/130313114/fufewikugemo-sejabalod.pdf
- http://surfbeat.com/uploads/1/3/0/5/130542859/nezisuravan_pozetalubixava.pdf
- http://www.peakscentre.com/uploads/1/3/0/5/130551143/6562177.pdf
- http://www.hightribecannabis.com/uploads/1/3/0/7/130738874/c58abe58dc.pdf
- http://brickartist.shop/uploads/1/3/0/8/130813497/lapupi.pdf
- http://www.ccitpl.com/uploads/1/3/0/5/130544138/wogeginagademek.pdf
- http://lawyerforathletes.com/uploads/1/3/0/4/130483295/vekazaboju_nolodi_womerinurudu_lonuresikis.pdf
- http://josephineshaw.com/uploads/1/3/0/3/130313213/tavudotepef.pdf
- http://mimismushrooms.com/uploads/1/3/0/6/130603836/vuperedivu_xorud_tipotizowujibo_bitowaziparaguz.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_off00007bdd.bin` `cd1ff72a969b8caec6707986e4418465ec96ccc1129c3fe6debefcc69960d191`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BDD	7768 bytes
`font_01_sfnt_off00009a09.bin` `779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A09	16036 bytes

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