Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06298019c7f94a9…

MALICIOUS

PDF

52.3 KB Created: 2020-04-11 07:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 52745b091b28fba8cd097d0601995e90 SHA-1: 31e1182ba85eabd1a4e74b4c286b46ab458b916c SHA-256: e06298019c7f94a9ee4db053ce98bfd105a3504a466b05a66f39089c2c31031a
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are numerically or generically named, indicative of a link farm or SEO spam campaign. The document body references 'Fallout 4 vault 81 mod', likely a lure to attract clicks to the embedded URLs. No scripts were extracted from this sample, and the primary malicious activity appears to be directing users to potentially malicious or spam content via a large number of external links.

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://mobilebillboardssanmateo.com/uploads/1/3/0/2/130271214/130271214.html#fallout+4+vault+81+mod
    • http://localspotshop.com/uploads/1/3/0/4/130488087/6116797.pdf
    • http://redcloudcompanies.com/uploads/1/3/0/8/130813314/3922790.pdf
    • http://sarahdguerra.com/uploads/1/3/0/6/130640133/c002e3b73.pdf
    • http://budandblossom.studio/uploads/1/3/0/6/130621362/fifotom.pdf
    • http://thecommonsultd.com/uploads/1/3/1/1/131163772/263ccc6.pdf
    • http://tallitministries.org/uploads/1/3/0/4/130436020/9597cc29d.pdf
    • http://termaisdinheiro.com/uploads/1/3/0/6/130639285/3388942.pdf
    • http://mieterbeirat.eu/uploads/1/3/0/8/130874519/wijarivu_maxav_burasokama_pomiral.pdf
    • http://programmersandbox.com/uploads/1/3/0/3/130313784/kubiroxukisilufupoja.pdf
    • http://stringsforyouth.org/uploads/1/3/0/7/130740429/parile.pdf
    • http://harperkeysallan.com/uploads/1/3/0/2/130270798/bujusiz-tadudiwafuvejo-zuwejewozilu.pdf
    • http://arklaserengraving.com/uploads/1/3/1/3/131381904/9752599.pdf
    • http://bucksnortnrunpottery.com/uploads/1/3/0/6/130605120/2776cbab2a.pdf
    • http://calvarydifference.com/uploads/1/3/0/7/130776255/15163ff.pdf
    • http://emiliaskincare.com/uploads/1/3/0/6/130620234/3700957.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_off00009bf8.bin
73ee17a0bbb31e3845c33f51ae9ca38f06cb24314f767892543c9c3b17470979		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF8 8052 bytes
font_01_sfnt_off0000bb4e.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4E 2652 bytes

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