Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff569a0414206ed1…

MALICIOUS

PDF

30.5 KB Created: 2020-03-29 02:54:16 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 89ba7771c1819d8968039e6707964db8 SHA-1: 90bf6dfe49f4dc1d804dd17d605f103c8f65d663 SHA-256: ff569a0414206ed1623488a8ad6b53a9e3caea3658380f845634e808b35b89ea
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on numerous domains, suggesting a link farm or SEO manipulation tactic. The document body itself is largely unreadable binary data, but the presence of these links is the primary indicator of malicious intent. No scripts were extracted from this sample.

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://www.restorationchurchag.org/uploads/1/3/0/6/130639809/130639809.html#preparacion+biomecanica+en+endodoncia+pdf
    • http://www.mygrassfedbeef.com/uploads/1/3/0/6/130621864/3659290.pdf
    • http://onlygodcanjudgeus.com/uploads/1/3/0/6/130605030/denovidato.pdf
    • http://cpanel.resetandrenewyoga.com/uploads/1/3/0/4/130483725/wenufejiwunutenibusa.pdf
    • http://w83.brdge.org/uploads/1/3/0/6/130620557/voxejizefuxejexoki.pdf
    • http://taurusbulldesigns.com/uploads/1/3/0/4/130477492/a500b019.pdf
    • http://sproutmagazine.org/uploads/1/3/0/4/130476344/9601014.pdf
    • http://mail.careinthecreek.com/uploads/1/3/0/2/130289530/zoguvuxedifewirodiru.pdf
    • http://www.katahdinrx.com/uploads/1/3/0/5/130542907/bokejuvavapinotola.pdf
    • http://schwabelfab.net/uploads/1/3/0/4/130435787/tiseratab.pdf
    • http://hannahhaleymua.com/uploads/1/3/0/6/130620612/2b0454298b.pdf
    • http://www.traphippies.com/uploads/1/3/0/3/130323174/5f92e245350.pdf
    • http://www.wwgoogetransport.com/uploads/1/3/0/7/130740113/juvikisafobus.pdf
    • http://morgana.club/uploads/1/3/0/5/130540159/61933.pdf
    • http://dungeonjunkies.com/uploads/1/3/0/6/130620172/zuwawonifapev.pdf
    • http://www.rejcontractorsandgreenhouse.com/uploads/1/3/1/1/131164520/5985871.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_off0000535d.bin
4b242f5bd37ce25814592c1ec6384f3567da22f71e6f7197f5f39617868f7869		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535D 6160 bytes

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