Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad4dcd63a5bb8b1…

MALICIOUS

PDF

114.0 KB Created: 2020-04-12 20:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7604e2ae6443809e6b6efcb76e7be7c3 SHA-1: 0ae81e5e28ce1953bd9eece7e97d32bb49cee7a8 SHA-256: 8ad4dcd63a5bb8b19d17bd9cbbb81a8a78795ae9cf73eb52d89e894d0e120070
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The embedded document body text, though partially corrupted, includes a reference to a book title and author, which may be a lure. 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://entech-krakow.pl/uploads/1/3/0/8/130813840/130813840.html#organization+development+and+change+thomas+g.+cummings+christopher+g.+worley
    • http://casaruralcarpediemmalaga.com/uploads/1/3/0/5/130588240/79a5bf10852d.pdf
    • http://brucekillenwellness.com/uploads/1/3/0/7/130739002/4268718.pdf
    • http://maveriqs.co/uploads/1/3/0/6/130603721/271d346523d99.pdf
    • http://wecandothatma.com/uploads/1/3/0/2/130270747/kumukil_kamodopiviz_jaxola.pdf
    • http://maryssweetheaven.com/uploads/1/3/1/4/131483391/gekekelajetubidetaj.pdf
    • http://deconstrictingfilms.com/uploads/1/3/0/3/130324289/327b2a389.pdf
    • http://martinactionsports.com/uploads/1/3/0/2/130270894/d968ec7.pdf
    • http://impressionshrservices.com/uploads/1/3/0/2/130291699/6541030.pdf
    • http://libere-online.com/uploads/1/3/1/4/131406966/budotekid-kiras-wuduv-nixupo.pdf
    • http://ztkarl.com/uploads/1/3/0/7/130775632/cef197f.pdf
    • http://cakespinners.info/uploads/1/3/0/8/130873975/kozabim-redikin-bukelanugazuba.pdf
    • http://aciftlv.fr/uploads/1/3/0/4/130489604/4740347.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000190a9.bin
b095009e1aa7b679086a2dd093949a1e2bfdfa179c83d9e64a20210f199a406d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x190A9 1544 bytes
font_01_sfnt_off00019819.bin
80f4583ab4d9c38c81c836508c493335fd1477716e8022cc551fd72947dc3fb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19819 8896 bytes

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