Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bfb7685c33ae77d…

MALICIOUS

PDF

40.2 KB Created: 2020-05-13 14:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7a1eae31d158d7191a6764fcbaf46300 SHA-1: d2160022f40829b834011a0488bddb83d10506ac SHA-256: 8bfb7685c33ae77dec6aa79b2d3dc4a4333420deb42d2541a08c1e5df233786d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are dynamically generated and point to other PDF files. The document body text, while partially corrupted, includes a URL that appears to be a lure for 'best cheap android phone 2018 ph'. This suggests a link farm or SEO poisoning attack designed to drive traffic to potentially malicious sites. No scripts were extracted from this sample.

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://app-pof.com/uploads/1/3/0/5/130588157/130588157.html#best+cheap+android+phone+2018+ph
    • http://naturesloveproducts.com/uploads/1/3/0/5/130550953/gidelugiwire.pdf
    • http://ericksontravel.net/uploads/1/3/0/4/130435666/5784185.pdf
    • http://climatecontrolstorage.net/uploads/1/3/0/6/130621330/8381045.pdf
    • http://chunagchihheng.com/uploads/1/3/0/5/130588657/kimojexewugaw-webalosunevomej.pdf
    • http://artsandcraftsminiatures.com/uploads/1/3/0/6/130605493/buluzowazonebexuwi.pdf
    • http://menofzion.org/uploads/1/3/1/0/131070847/bopesuredelok_muguk_jadipidapenegaz.pdf
    • http://jimjturner.com/uploads/1/3/0/6/130621215/movafuf-rulob.pdf
    • http://jlwcobb.com/uploads/1/3/1/4/131482968/didojomogarimawim.pdf
    • http://coxllc.com/uploads/1/3/1/4/131453645/guluxata.pdf
    • http://beans-ed.com/uploads/1/3/0/7/130776687/wafemul.pdf
    • http://spectrumartist.org/uploads/1/3/1/4/131407763/rumosivowubi.pdf
    • http://mastindelospirineos.com/uploads/1/3/0/5/130551625/jadanufesabereli.pdf
    • http://osteopaatvanpee.be/uploads/1/3/0/4/130435872/pewol_jitidemolazidu_pixejifit.pdf
    • http://leeknappstudios.com/uploads/1/3/1/3/131379060/zadipati.pdf
    • http://sagacitylaw.com/uploads/1/3/0/5/130589158/libuvabo.pdf
    • http://animalhealingartsbrooklyn.com/uploads/1/3/0/5/130544318/b2c1425859b5.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071da.bin
1556f63431ef27f5dd736676c972915131ecfc549ce2ca4898b14a96f2b6d6c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71DA 10324 bytes

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