Malicious PDF — malware analysis report

Static analysis result for SHA-256 aafb5ac8d49975e4…

MALICIOUS

PDF

39.1 KB Created: 2020-03-10 06:24:12 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7d0d4f253e8db5a7baa5960914f0d3e4 SHA-1: 9d91cf5f673f06784f791bde2d867c5288e15e7f SHA-256: aafb5ac8d49975e45907c899ca9518fe078cf96176496f857bf9939023176dfa
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 with numeric or book-related slugs, indicative of a link farm or SEO spam operation. The document body, though partially corrupted, contains text related to changing PDF fonts, serving as a lure to click on the embedded malicious URLs. The primary goal appears to be driving traffic to these external sites, potentially for further malicious activity or ad fraud.

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://sharedtravel.voyagerwebsites.com/uploads/1/3/0/7/130739159/130739159.html#how+to+change+font+type+in+pdf
    • http://quantumthief.com/uploads/1/3/0/6/130621307/posuzo-fobili-nusijemabim-zoriledoloj.pdf
    • http://www.gentrificationjr202.com/uploads/1/3/0/5/130588475/bapijat.pdf
    • http://www.michaelpankiw.net/uploads/1/3/0/7/130775792/c84a0aa5.pdf
    • http://woodenhomedesigns.biz/uploads/1/3/0/4/130483426/292871.pdf
    • http://macrovisionhospitality.com/uploads/1/3/0/6/130620679/wekuxuwafe.pdf
    • http://bennyjmusic.com/uploads/1/3/0/4/130476873/wupumiriwurow-nipatimo-pekib-vefemadanovawe.pdf
    • http://www.theselffullfillingprophet.com/uploads/1/3/0/6/130604049/3763153.pdf
    • http://my-battalion.com/uploads/1/3/0/4/130490875/mafogomowej.pdf
    • http://pyramation.com/uploads/1/3/0/6/130639559/f2714cb5.pdf
    • http://will-academy.com/uploads/1/3/0/6/130621148/bepevivovizo-polujujovikino-defagajunimufi.pdf
    • http://walkingscriptures.org/uploads/1/3/0/7/130776809/7694103.pdf
    • http://verycoolgiftbaskets.com/uploads/1/3/0/3/130379522/vogamaw.pdf
    • http://donnayoo.com/uploads/1/3/0/6/130605497/sewivopot.pdf
    • http://hostmaster.allornothingnutrition.co.uk/uploads/1/3/0/2/130287845/raregoxunusafewike.pdf
    • http://www.mathiasotte.com/uploads/1/3/0/3/130323285/130628.pdf
    • http://zpdevsite.com/uploads/1/3/0/8/130813651/6360042.pdf
    • http://keannasade.com/uploads/1/3/0/3/130379676/moxeziv.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_off00007038.bin
48b0236018be0c892e717989bf717631ae84885dcd31a0737ff0708d597a943a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7038 7940 bytes

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