Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd1aee34237329ce…

MALICIOUS

PDF

45.7 KB Created: 2020-03-10 07:15:41 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 714dadff0f3668a3613d9e7a88528a43 SHA-1: 955ac17594925b0ebd6e9ec551253616b51f772f SHA-256: bd1aee34237329cef0b37a5e42c16686926be772538916735f4e7915fd01d9a7
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or distribute malware. The document body itself is largely unreadable, but the presence of URLs suggests a redirection or phishing attempt.

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://74-123-72-106.mgwnet.com/uploads/1/3/0/9/130969497/130969497.html#g+major+scale+two+octaves+piano
    • http://happyhomevn.com/uploads/1/3/0/7/130776316/fudibug_sejukapob_fimuxuri_nonuwugapovi.pdf
    • http://www.puffinthreads.com/uploads/1/3/0/3/130323437/2260008.pdf
    • http://naturaliq.org/uploads/1/3/0/5/130588769/2a3a732710a3e.pdf
    • http://www.foundationrepairinhoustontexas.com/uploads/1/3/0/3/130323328/2723854.pdf
    • http://miamitownshiphealthandwellnesscenter.com/uploads/1/3/0/6/130605338/4be82b529.pdf
    • http://stdesignmatters.com/uploads/1/3/0/7/130738662/7114727.pdf
    • http://www.spotlightlima.com/uploads/1/3/0/4/130476148/vunetifidogixiwazevo.pdf
    • http://cad-ak.com/uploads/1/3/0/2/130288431/9350360.pdf
    • http://www.bluesandrootsradio.co.uk/uploads/1/3/0/5/130588477/6643069.pdf
    • http://canmoreappliancerepair.com/uploads/1/3/0/8/130814718/1791542.pdf
    • http://www.alwaysamigosyoga.com/uploads/1/3/0/8/130874031/rodipizemop.pdf
    • http://changingstep.com/uploads/1/3/0/6/130603690/967567.pdf
    • http://morbegnoclassica.com/uploads/1/3/0/5/130588675/nujawefapegowol.pdf
    • http://insituexperiences.com/uploads/1/3/0/5/130590308/ropevatu.pdf
    • http://ocdrules.com/uploads/1/3/0/5/130550926/85b4e.pdf
    • http://helpmepc.com/uploads/1/3/0/6/130640062/zarizixaxit_sozeluzot.pdf
    • http://natlseclj.org/uploads/1/3/0/5/130550713/52ed90feb410.pdf
    • http://jakecharronmusic.com/uploads/1/3/0/7/130775632/2324caba.pdf
    • http://bigsmasher.org/uploads/1/3/0/2/130287972/dfefa8947.pdf
    • http://budapestfoodandtravel.com/uploads/1/3/0/2/130273798/nokavetewi-sibazixubutezu-takupaxenirili.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.

FilenameKindSourceSize
font_00_sfnt_off000076e6.bin
e38b5c7ae35be741d92acc613442a748e35447700a5b8707d3ee0f0c71da90b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76E6 7500 bytes
font_01_sfnt_off00009452.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9452 16036 bytes

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