Malicious PDF — malware analysis report

Static analysis result for SHA-256 33d2418fead14195…

MALICIOUS

PDF

55.7 KB Created: 2020-03-28 01:44:07 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 961a754c835ef2f60275544f34146d18 SHA-1: 74d4e85484cd9de98f6f7ad107304df5468753a7 SHA-256: 33d2418fead1419557dcb3d87bc2f680ef4de863e30991bcfa6c49dc6eca25b4
62 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, a technique often used for SEO manipulation or to distribute malicious payloads. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous PDF files hosted on various domains. The embedded document body text, though heavily obfuscated, also contains URLs that are part of this link farm. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://lykkenkommerindefra.dk/uploads/1/3/1/1/131164266/131164266.html#minolta+x-370+manual
    • http://amiture2master.com/uploads/1/3/0/6/130604350/kegaxujomawafu.pdf
    • http://vintart.net/uploads/1/3/0/7/130739522/rokenemesakoxe.pdf
    • http://ursasys.com/uploads/1/3/0/6/130621273/tobumatugiwopok.pdf
    • http://getthebuildersin.com/uploads/1/3/0/6/130604288/2414092.pdf
    • http://novateckfloor.com/uploads/1/3/0/8/130814341/3011357.pdf
    • http://ginniarnp.com/uploads/1/3/0/3/130323281/katojop.pdf
    • http://highsocietyreserveclub.com/uploads/1/3/1/0/131070447/febaxezuk.pdf
    • http://theblueandgreennews.com/uploads/1/3/0/7/130739126/wower.pdf
    • http://www.sanluistattoo.com/uploads/1/3/0/5/130550921/3748061.pdf
    • http://meadvindental.com/uploads/1/3/0/5/130544652/vusonamu.pdf
    • http://theabsolutegetaway.com/uploads/1/3/0/5/130589019/e2025419a948b88.pdf
    • http://teamavg.com/uploads/1/3/0/8/130814601/85c09fcd.pdf
    • http://danielbutlerart.com/uploads/1/3/0/6/130604710/2866958.pdf
    • http://www.usarenaissanceevents.net/uploads/1/3/0/5/130539438/711543.pdf
    • http://nwintegrativeprimarycare.com/uploads/1/3/0/6/130621874/xutefefozaxax-wivepuw-lodebanur.pdf
    • http://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/2/130289532/5505558.pdf
    • http://mygamercoins.com/uploads/1/3/0/8/130814347/devidefa.pdf
    • http://seowenscompany.net/uploads/1/3/0/7/130740200/0e145d462.pdf
    • http://mindbodymend.com.au/uploads/1/3/0/5/130551210/62c6b96.pdf
    • http://www.anchoredinrowayton.com/uploads/1/3/0/8/130874359/sunesiti.pdf
    • http://marloaselin.com/uploads/1/3/0/3/130323110/palulozewuvanegapuz.pdf
    • http://kentacrowd.com/uploads/1/3/0/5/130588376/9136142.pdf
    • http://projectinnocencefreejameslucien.com/uploads/1/3/0/8/130874111/bipajuzujomuduwijeti.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_off0000b2cd.bin
cd413ca0248eefcee727c30ef4ddfd0a917c8f335bf7dfcdbabc59e1645864c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2CD 7940 bytes

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