Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac767dc14961745…

MALICIOUS

PDF

30.0 KB Created: 2020-04-13 06:10:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 62ee7135f08a2fb193b59d30220a7892 SHA-1: 4caed065c20280588d86f9f8dac4f8021f0788db SHA-256: 4ac767dc149617452bc1c937b826fe77f59a31b40123fdcd221789ed315ef5c8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, contains text related to 'The ugly duckling 2013 full movie' and the wkhtmltopdf application, likely serving as a lure to disguise the malicious intent. The primary attack pattern involves redirecting users to potentially malicious websites through these embedded links.

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://allyanswers.com/uploads/1/3/1/3/131398526/131398526.html#the+ugly+duckling+2013+full+movie
    • http://oscreno.com/uploads/1/3/0/8/130814644/texijol.pdf
    • http://hostmaster.swanseaspeechandlanguage.co.uk/uploads/1/3/0/4/130488442/81adb.pdf
    • http://bssc.ru/uploads/1/3/0/7/130739128/kukim_xorelux_rufupod.pdf
    • http://familyessentials.net/uploads/1/3/0/9/130969954/munuluzawe.pdf
    • http://mindstate.store/uploads/1/3/0/4/130435771/8616841.pdf
    • http://midcoteaparty.com/uploads/1/3/0/6/130639263/4567603.pdf
    • http://drivethru.run/uploads/1/3/0/3/130379411/mogeribedu-nomubofid-jegezasozavu-kiliminuremodi.pdf
    • http://elcomairbrasil2018.com/uploads/1/3/0/5/130539035/9407e2b6.pdf
    • http://cscreativebrief.com/uploads/1/3/1/0/131070105/rawaboruto_juzupom.pdf
    • http://goldstarcruisesandtravel.com/uploads/1/3/0/8/130814295/f0b7aa40e207.pdf
    • http://nesherco.com/uploads/1/3/1/3/131384018/9521965.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_off00004f74.bin
aa73d740bc353a10987ab60292754b34ec0f6e8aca3751f4f7234daa36d8b78b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F74 7196 bytes

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