PDF malware analysis — malicious · 4c8ccc9c2ec284f5

MALICIOUS

PDF

53.8 KB Created: 2020-03-21 19:25:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)

MD5: 96dd0db032c43aad1a1cd965ba05f0eb SHA-1: 5dc8fbcec4f2d3b321ddf1ad1e54456202e357be SHA-256: 4c8ccc9c2ec284f57d7f3d292a870d3432574baa3699dd019c5894250479cce7

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents on different domains. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. The primary function appears to be acting as a link farm, potentially for SEO manipulation or to distribute further malicious content through the linked PDFs.

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://serafinaappel.com/uploads/1/3/0/2/130272332/130272332.html#hidruro+de+cobre+i+formula+quimica
- http://friendsofrenaldialysis.net/uploads/1/3/0/3/130379435/lisevoxemeguz.pdf
- http://thomastrevethan.com/uploads/1/3/1/1/131163660/mavivigelubij-voxukuf-nirozukimejur-mawiritod.pdf
- http://skynetinternational.org/uploads/1/3/0/5/130541881/6826a233292691.pdf
- http://bnstem.com/uploads/1/3/0/7/130775078/5239089.pdf
- http://publicinfo.dk/uploads/1/3/0/9/130969541/269753.pdf
- http://buoyspier37.com/uploads/1/3/0/6/130604732/4702921.pdf
- http://harvestmoonmarketllc.com/uploads/1/3/0/7/130775796/88da52d.pdf
- http://fw.jtm-associates.com/uploads/1/3/0/2/130272347/lapafajujowos_jevop_senonafavivev.pdf
- http://mrsjlittlefield.com/uploads/1/3/0/7/130738667/3062557.pdf
- http://missit.co.uk/uploads/1/3/0/4/130483163/1620864.pdf
- http://server65247.misscarols.com/uploads/1/3/0/7/130775031/2769968.pdf
- http://thehoebox.net/uploads/1/3/0/5/130551299/xarivibawerasopaluku.pdf
- http://bargainlivingeugene.com/uploads/1/3/0/6/130620524/sabiv.pdf
- http://aquaponicsoutlet.com/uploads/1/3/0/6/130621367/549086.pdf
- http://peninsulapopsconcerts.org/uploads/1/3/0/5/130543057/39732fae9.pdf
- http://www.nuggetcatcher.com/uploads/1/3/0/3/130379291/e47d88116.pdf
- http://cpanel.maplewoodcommunitymusic.org/uploads/1/3/0/7/130775108/nowud-zufoniduza-norijavutagu.pdf
- http://schraderlivestock.com/uploads/1/3/0/8/130813539/2101546.pdf
- http://ophsclassof1999.com/uploads/1/3/0/6/130605374/5636868.pdf
- http://bpgaragemaine.com/uploads/1/3/0/6/130621082/2412336.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008745.bin` `91ff3cce151e98a1dcd81dc3b5cf85b8dd3c1599dd90f1f3a46c6f744f1e4441`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8745	9280 bytes
`font_01_sfnt_off0000a8f3.bin` `0ef1112e50e2a86488aadde4d8a477a3649c66578d8f2a84f2c6ad20bbddbbf8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA8F3	2732 bytes
`font_02_sfnt_off0000b2a0.bin` `779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB2A0	16036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.