Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1b51d596799884…

MALICIOUS

PDF

41.3 KB Created: 2020-05-14 02:04:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 73cae9bbefdd7888a10b9484eb5df399 SHA-1: 05896446730f11689bb7144ecf6b166c569cd6c9 SHA-256: fc1b51d596799884d29f0ba3b64ac1a377c42e31185607da6936547f8ae9f346
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 as a PDF SEO link farm. The primary external URI points to 'http://sdsufiji.com/uploads/1/3/1/4/131412181/131412181.html#manualidades+cristianas+para+ni%C3%B1os+2+5+a%C3%B1os', which is likely part of a malicious redirection scheme. The document body is heavily obfuscated and contains embedded URLs, further supporting the malicious intent.

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://sdsufiji.com/uploads/1/3/1/4/131412181/131412181.html#manualidades+cristianas+para+ni%C3%B1os+2+5+a%C3%B1os
    • http://tigerpawentertainment.com/uploads/1/3/1/4/131438305/9568929.pdf
    • http://bpmeducationgroup.com/uploads/1/3/0/4/130483249/tubirizodezabu-goginamipol-buvibij.pdf
    • http://wolverinelacrossecamps.com/uploads/1/3/0/9/130969920/mizisovarifavif_sizivenoku_dipakilozadafu_vamorete.pdf
    • http://eucalyptushill.com/uploads/1/3/0/5/130539227/volunokafatek.pdf
    • http://adicep.com/uploads/1/3/0/6/130604042/kukokogoxibu_vovako_fixitajeze.pdf
    • http://rddevelopments.net/uploads/1/3/0/5/130589097/8bea345ebe.pdf
    • http://thecolorgarden.org/uploads/1/3/0/6/130603904/8556945.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_off000072c5.bin
2e25e0a58ef05e044666bade2da4fbbf99d31d9a44c65aafcf88edbee776c8a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 11548 bytes

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