Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac36af72143d2251…

MALICIOUS

PDF

36.5 KB Created: 2020-03-29 22:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 554aae61c2dc65bfa2a4845763b91843 SHA-1: da27d93056767520efe805a3a52ab6b5f094c2b2 SHA-256: ac36af72143d2251df08c918dcc4a5e7ce17b9be3aa987645da628f3e2a0c0b8
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, contains text related to 'Ozymandias poem questions and answers class 10', likely a lure to attract unsuspecting users. The primary heuristic indicates a PDF link farm, suggesting the intent is to drive traffic to numerous external resources.

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://humannaturefoundation.com/uploads/1/3/0/2/130289443/130289443.html#ozymandias+poem+questions+and+answers+class+10
    • http://higherimage.org/uploads/1/3/0/3/130312965/e5c3b95d43.pdf
    • http://keiglemarketers.net/uploads/1/3/1/4/131437573/543477.pdf
    • http://stephenkillea.com/uploads/1/3/0/6/130604105/9856485.pdf
    • http://crisat.com/uploads/1/3/0/4/130492771/sitibaxe.pdf
    • http://pauwilo.com/uploads/1/3/0/4/130436173/webemifipupobabiba.pdf
    • http://athenas-owl.com/uploads/1/3/0/7/130776757/952735.pdf
    • http://klassykinks.net/uploads/1/3/0/2/130270779/e0ac795c82ab98.pdf
    • http://maritzazamora.org/uploads/1/3/0/6/130621501/fuvuwugidepujejojak.pdf
    • http://daveroeducation.ca/uploads/1/3/0/4/130476830/wisipelewadir-puriluw-xuvinije-nupej.pdf
    • http://danceofthemagi.com/uploads/1/3/0/3/130379226/zumunerupojovet.pdf
    • http://sparrowhawkgames.com/uploads/1/3/0/5/130590682/jalodujerira-fufomone-rilivi-fajidusimigipir.pdf
    • http://plethoraofpigs.ca/uploads/1/3/0/7/130775634/7741070ccf3eb38.pdf
    • http://googlecard.it/uploads/1/3/0/8/130874204/a987956bde1.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_off0000671c.bin
3719ab02df097103fefc817a1974f5825c2b4952ad938d9f2f01803f17dcfd8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x671C 7732 bytes

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