Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9f8441bde18131…

MALICIOUS

PDF

35.4 KB Created: 2020-04-12 02:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 620f6cbb41cb1eab3d624876f263f7a2 SHA-1: 8963e3f641b01eee7e7cb2556ff4760c3a1a88ec SHA-256: 2a9f8441bde181310a5d218374d6a1d3e5c434693254df202e7e84ebd852c9f1
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, predominantly using numeric slugs in their paths, suggesting a link farm or SEO manipulation tactic. The embedded URLs and the document body, which contains garbled text and references to 'Imagenes de papa e hijo recien nacido', do not provide a clear narrative but reinforce the presence of external links. 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://kylaconner.com/uploads/1/3/0/4/130488569/130488569.html#imagenes+de+papa+e+hijo+recien+nacido
    • http://beatdrama.com/uploads/1/3/0/7/130775404/1822585.pdf
    • http://palslive.com/uploads/1/3/0/4/130488734/1082787.pdf
    • http://yogantraining.com/uploads/1/3/0/8/130874154/tamosoka_bavavifu.pdf
    • http://brassbandradio.com/uploads/1/3/0/6/130621405/novam.pdf
    • http://quanticloshoes.com/uploads/1/3/0/8/130814295/mekut_vilas_wuwez_dabopa.pdf
    • http://libertytreemilsurpllc.com/uploads/1/3/0/4/130483660/3000863.pdf
    • http://jandjtechnology.com/uploads/1/3/0/6/130639782/vudajofexazafe_zavezerefev.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_off00006285.bin
3d56bca693ad81947884a37bb55c5432cd59031e8094a24038520f625c83834a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6285 7960 bytes

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