Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f8ea28835a16a5…

MALICIOUS

PDF

40.5 KB Created: 2020-03-20 08:39:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b1f7a606f6be39ae1c65e35f06779c44 SHA-1: 0c6437f6974c374f78fd12eb3cee7048053f58a0 SHA-256: f3f8ea28835a16a57ea3dd1a959fc636482ed26a9e2624b55f9af3c20bff7d15
94 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, a common tactic for SEO poisoning and distributing malicious content. The document body explicitly mentions downloading cracked software, and one of the embedded URLs points to a page titled 'download final cut pro full crack for mac'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm used for SEO manipulation to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://my-talking-baby.com/uploads/1/3/0/4/130488688/130488688.html#download+final+cut+pro+full+crack+for+mac
    • http://propertypicturestours.com/uploads/1/3/0/2/130289485/wutujijake-fovexepuku.pdf
    • http://modernwomantour.com/uploads/1/3/0/7/130776801/wilasujegefog.pdf
    • http://yonatan199.octarinesec.com/uploads/1/3/1/0/131069839/tatores.pdf
    • http://internetradiochat.com/uploads/1/3/0/5/130545333/tupagoloxor-nonijak.pdf
    • http://epiphanrentals.com/uploads/1/3/0/7/130739223/kajafomavale-xegugejufojix-jasudujeviviwiv.pdf
    • http://mathmadeez.biz/uploads/1/3/0/6/130604594/6399758.pdf
    • http://jumpreading.com/uploads/1/3/0/2/130288392/dogam.pdf
    • http://fallenvillain.com/uploads/1/3/0/8/130873869/198d6dead3f66.pdf
    • http://okdoubledoulas.com/uploads/1/3/0/5/130551310/6832907.pdf
    • http://scottssteamsolutions.com/uploads/1/3/0/7/130775346/3705243.pdf
    • http://hopehats.org/uploads/1/3/0/5/130546183/e064fc971d72.pdf
    • http://cms.zenit-museumsbau.de/uploads/1/3/0/7/130775402/jedoxexuvinoj.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_off000071f2.bin
bc3ef289a0b55e6864bf43f4b7cb187c487ab6fb867f2c1add075849808f3bde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F2 8744 bytes

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