Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d7418d88cab5a2…

MALICIOUS

PDF

31.9 KB Created: 2020-03-08 05:31:19 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 590f0e7173f14a10be6a4627b8617ab0 SHA-1: 306525fd14f5e9c66caf80b346235409836546ed SHA-256: 19d7418d88cab5a2bcbebd6d1b42d9a674f49f184808711d7fbd382197f0228f
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that points to an HTML file, and the majority of extracted URLs are PDFs hosted on various domains. This suggests the primary purpose is to act as a link farm, potentially for SEO manipulation or to distribute further malicious content via the linked PDFs.

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://blueprinttocash.stefanaarnio.com/uploads/1/3/0/7/130740573/130740573.html#ayyappa+swamy+mahatyam+movie+songs+lyrics
    • http://www.kloop.me/uploads/1/3/0/7/130739316/2763f8e.pdf
    • http://cpanel.counterpunchparkinsons.com/uploads/1/3/0/6/130620546/8179504.pdf
    • http://theyarn.shop/uploads/1/3/0/7/130775271/1b722f81d6.pdf
    • http://androoms.net/uploads/1/3/0/6/130605258/e5caa55855e27.pdf
    • http://conquerministries.com/uploads/1/3/0/6/130639068/4644079.pdf
    • http://nigelcronin.com/uploads/1/3/0/3/130379305/tanulej.pdf
    • http://cienaraenelson.com/uploads/1/3/0/4/130476065/butexumitamawo.pdf
    • http://vivavocestyling.com/uploads/1/3/0/6/130620587/986669a.pdf
    • http://sagishi-ryoko.com/uploads/1/3/0/4/130483492/7c2164f8e4.pdf
    • http://www.marvellus.be/uploads/1/3/0/4/130489122/1256430.pdf
    • http://lottomagico.com/uploads/1/3/0/6/130603741/1726553.pdf
    • http://briankhorsand.com/uploads/1/3/0/6/130603822/af3616b803174b.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_off0000566e.bin
b545b2b08628d8b156c2e02a8769478d90c9ded7c0a756b5ce671c9608a5ef1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x566E 7092 bytes

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