Malicious PDF — malware analysis report

Static analysis result for SHA-256 e208a35a3a61923d…

MALICIOUS

PDF

39.3 KB Created: 2020-04-04 15:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8a1292b42540c8ab3803264dbf142506 SHA-1: 20bfca20a66547decdabfbc753cba56e6218ba97 SHA-256: e208a35a3a61923db90833ff49b726db2ea08d7aa16a0204356084e1d43865cc
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a mass external PDF link farm, with 30 links found. The embedded URLs point to various PDF files hosted on different domains, suggesting a coordinated effort to distribute content or lure users. No scripts were extracted, and the document body is largely unreadable binary data, making it difficult to determine a more specific attack pattern beyond link farming.

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://blackhawbuilders.com/uploads/1/3/0/8/130814060/130814060.html#convertir+de+lt%2Fseg+a+m3%2Fseg
    • http://aworkablelife.com/uploads/1/3/0/5/130589214/5359205.pdf
    • http://carpetcleanerwaukesha.com/uploads/1/3/0/5/130540814/913618.pdf
    • http://fitmortgage4u.com/uploads/1/3/0/6/130604327/bupufizakofudutuw.pdf
    • http://danbturner.com/uploads/1/3/0/3/130323449/3754615.pdf
    • http://vinegarridgefarm.com/uploads/1/3/1/1/131163559/foterumefebi-bisugufalakaj.pdf
    • http://craigcaveguitars.com/uploads/1/3/0/6/130620572/vuvaxo-kuvawanib-dazuxelazif-nekapuvuxevivi.pdf
    • http://riveroakinspections.com/uploads/1/3/0/7/130739144/b613815.pdf
    • http://kentuckystrengthfarm.com/uploads/1/3/0/3/130313192/f711db675a8ee.pdf
    • http://kauaimobilewellness.com/uploads/1/3/0/2/130287407/77fe55035.pdf
    • http://hauntedfbg.com/uploads/1/3/0/7/130740054/d8fb9.pdf
    • http://companymejia.com/uploads/1/3/0/7/130738882/modeteruj-kivovutelot-zelubef.pdf
    • http://socialu.online/uploads/1/3/0/3/130323174/7781991.pdf
    • http://abellwatchmaker.com/uploads/1/3/0/6/130621283/03ab91.pdf
    • http://maryryanfarmer.com/uploads/1/3/1/4/131482997/bemuxarov-vedovusa.pdf
    • http://thefasterstartup.com/uploads/1/3/0/5/130589452/zuzotidubezoro.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_off0000610c.bin
a39e6d22f541385abdce9d78ad837bbec093b422b732f8433d026a2fa1bf196e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610C 8852 bytes
font_01_sfnt_off00008141.bin
885781ec91db75dc8c4a6a3d3dac0324bdfdb8f2239dab70466c62035ae072da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8141 4144 bytes

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