Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c653dbbf7e5cbba…

MALICIOUS

PDF

38.5 KB Created: 2020-04-06 08:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8c6387a44216a8c525cc08ec43767aac SHA-1: 500358a3674930f9b6ad85826a4839cc44e664d3 SHA-256: 7c653dbbf7e5cbbaf41a3f097b4cd2a0e5c313ebe79269dda499cfa07fcdf5b3
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 to other PDF files hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The document body itself is largely unreadable due to encoding issues, but the presence of numerous external URLs strongly suggests a malicious intent to redirect users. 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://ereksitahanlama.com/uploads/1/3/0/8/130813497/130813497.html#ejemplos+de+relacion+y+funcion+en+la+vida+cotidiana
    • http://crabbitt.com/uploads/1/3/0/6/130605521/0edceccd7.pdf
    • http://yesitskami.com/uploads/1/3/0/3/130313673/323189.pdf
    • http://musingsofageek.com/uploads/1/3/0/2/130272271/8571339.pdf
    • http://messianicmetis.ca/uploads/1/3/1/1/131163859/9613103.pdf
    • http://theemafoundation.com/uploads/1/3/1/3/131384424/kopetujutukeni.pdf
    • http://konkursalesztuka.pl/uploads/1/3/0/5/130551805/3415854.pdf
    • http://florablackettdesigns.com/uploads/1/3/0/3/130323130/pexad.pdf
    • http://brandylrhodes.com/uploads/1/3/0/6/130603763/992548b.pdf
    • http://allisemy.com/uploads/1/3/0/4/130477492/bigiju.pdf
    • http://www.bikramstjohns.com/uploads/1/3/1/3/131383921/nasom_bozaxoganogose.pdf
    • http://baumanbaps.com/uploads/1/3/1/4/131483520/wotafifozineme.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_off00006c63.bin
4957fb46298d31bb115b5c5a6e4bef517629feceefb92d6dfe437c426d5c057a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C63 8572 bytes

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