Malicious PDF — malware analysis report

Static analysis result for SHA-256 57264a00a54038a2…

MALICIOUS

PDF

41.2 KB Created: 2020-03-23 12:03:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b7f6ff6f8e24314ff6e7baaa49a311e SHA-1: a2b2fc70b67197d74bc1488e2109ac13bb965865 SHA-256: 57264a00a54038a2615645274b29407d3bb715a92ef118c86dae6c1e081a1533
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links to various domains, a technique often used in SEO link farms or to distribute malicious content. The document body, while containing garbled text, includes a reference to a URL that appears to be part of this link farm. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates this is not a legitimate document but rather a component of a larger malicious infrastructure designed to redirect users to potentially harmful sites.

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://roccosansalone.com/uploads/1/3/0/6/130621928/130621928.html#cuantas+figuras+geometricas+hay+en+una+cancha+de+futbol
    • http://methodistchurchguyana.org/uploads/1/3/0/3/130379523/530dae31088f5a7.pdf
    • http://mandiwoodard.com/uploads/1/3/0/7/130740133/welilefo_dudiluxodinuve.pdf
    • http://fnqoilsfryersolutions.com/uploads/1/3/0/7/130740610/sokukezudabozivemo.pdf
    • http://bordadosenmalaga.com/uploads/1/3/0/2/130289205/pukoxuluso.pdf
    • http://15saintandrews.com/uploads/1/3/0/5/130538902/40fdcc52b1d1.pdf
    • http://isgplusvalia.com/uploads/1/3/1/1/131164278/8b0b3.pdf
    • http://ykuptowngirl.com/uploads/1/3/0/7/130740089/ff0ef.pdf
    • http://kimberleyhodges.com/uploads/1/3/0/5/130545011/7975211.pdf
    • http://alicornapothecary.com/uploads/1/3/0/8/130814601/donaxowelovivat-niludo.pdf
    • http://theateroftruth.org/uploads/1/3/0/6/130604158/dares_vepetesugimotov_jazolusefe.pdf
    • http://pornaddicted.com/uploads/1/3/1/1/131163931/c31e46064b27c9.pdf
    • http://divadollscouture.com/uploads/1/3/0/5/130551073/def7859c.pdf
    • http://mail.apmaschinen.ch/uploads/1/3/0/7/130739131/afc3cc595daa479.pdf
    • http://dibaseballschool.com/uploads/1/3/0/8/130874393/zewaritadupefig.pdf
    • http://stntradingenterprise.com/uploads/1/3/0/5/130589243/mewavezukobore.pdf
    • http://noidsirkka.com/uploads/1/3/0/6/130639364/1193851.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_off00006c1d.bin
190578f9e45fe4474cd1a83217f6121dd7235c0549d00909910ec5709972cad4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1D 8812 bytes
font_01_sfnt_off00008c45.bin
6bdf1ecb7183383360a5a8acce54b73be3aa3a712d58d4e8950ce6be9f97871d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C45 1780 bytes

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