Malicious PDF — malware analysis report

Static analysis result for SHA-256 494fb98555d36a23…

MALICIOUS

PDF

35.5 KB Created: 2020-03-20 11:22:33 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d4d8b131cb53d70f67dd73fa82f6d18 SHA-1: d80170034470e403076fa4d6d4bd6ecbc8d8ff3c SHA-256: 494fb98555d36a2328094cbd816789143dcf941e99550b435feb29c66f0155b1
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body contains text that appears to be a lure for media content, directing users to a specific URL. The primary heuristic firing indicates a mass external PDF link farm, with 26 links generated, predominantly hosted on 'www.americanlighting.org'. 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://regenerateyourauthenticnature.com/uploads/1/3/0/3/130379462/130379462.html#badlapur+movie+mp3+song+mr+jatt
    • http://www.americanlighting.org/uploads/1/3/0/5/130539881/6f424476a9c.pdf
    • http://mozellemosaics.com/uploads/1/3/0/6/130605133/1251197.pdf
    • http://ultimatescrubsandmore.com/uploads/1/3/0/2/130274088/3663459.pdf
    • http://decartrailer.com/uploads/1/3/0/7/130776452/2046587.pdf
    • http://yonatan91.octarinesec.com/uploads/1/3/0/5/130551067/bamezusafo.pdf
    • http://www.swiss-fiat-crypto-license.com/uploads/1/3/0/6/130621210/sonabexefe.pdf
    • http://creamworksllc.com/uploads/1/3/0/4/130483331/lelesarudik-wikopufumomoz.pdf
    • http://webdisk.camppepper.com/uploads/1/3/0/3/130313271/lunufepilevemeniv.pdf
    • http://bellacapella.info/uploads/1/3/0/4/130489499/804995b77.pdf
    • http://glickfam.com/uploads/1/3/0/7/130776747/ludakodokesuze_nonesidefod.pdf
    • http://ammoudiclub.com/uploads/1/3/0/2/130291489/fepepefez.pdf
    • http://bobpowelltattoo.com/uploads/1/3/0/7/130776451/9a6a87468ffea.pdf
    • http://eandmclub.com/uploads/1/3/0/4/130436147/9656444.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_off000061e8.bin
8f0b3a843140643a90d8fb752d50ba66f7b32e54a597483db77269a9d38a66c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61E8 8052 bytes

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