Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7176478cff4b9ae…

MALICIOUS

PDF

49.0 KB Created: 2020-04-02 11:08:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d582981c55cdbb320ddf48754e059e0 SHA-1: c01c39a88eff4ed0164e9661e5765501a5a84ea0 SHA-256: f7176478cff4b9ae8b3169e096ae85e94d6c684ba39f09996ed2503c67d191a1
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on numerous domains, suggesting a link farm or SEO spam campaign. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern. No scripts were extracted, limiting the analysis of direct payload delivery.

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://pbjconstructionllc.com/uploads/1/3/0/5/130539696/130539696.html#dell+e-port+plus+advanced+port+replicator+3+monitors
    • http://officialdup.shop/uploads/1/3/0/5/130539204/didotagilofup.pdf
    • http://libertyalabama.com/uploads/1/3/0/6/130604187/beworutamofekimozup.pdf
    • http://copewithcancer.net/uploads/1/3/0/5/130551374/551d2172.pdf
    • http://foundmolly.net/uploads/1/3/0/7/130775942/kevonitud.pdf
    • http://inno-delta.com/uploads/1/3/0/7/130739463/cef0e.pdf
    • http://jimbettsartanddesign.com/uploads/1/3/0/5/130546717/9668552.pdf
    • http://jdequipmentsolutions.com/uploads/1/3/0/3/130323818/lipepazem-vefaz.pdf
    • http://travelismyreligion.com/uploads/1/3/0/6/130640136/1177774.pdf
    • http://hillcountryhr.com/uploads/1/3/0/2/130289430/laditafamupa_toxatolini_sarozawabogozis_pukogusatokid.pdf
    • http://realgrowthpartners.com/uploads/1/3/0/7/130775402/f0fb5397e8.pdf
    • http://lunaparkstudios.net/uploads/1/3/0/6/130604169/kanakivawixe.pdf
    • http://springfieldmohomeinspector.com/uploads/1/3/0/5/130588858/karizumuvelasobe.pdf
    • http://fbclee.net/uploads/1/3/0/7/130775116/kisewarewawusabovok.pdf
    • http://rusticrosebarnweddings.com/uploads/1/3/0/6/130604039/fetabibuvo-ravobunewef-ravolemun-xixiwutiju.pdf
    • http://iambrianodonovan.com/uploads/1/3/0/4/130476359/a88fa038.pdf
    • http://inerfazeone.com/uploads/1/3/1/1/131164238/4945a79.pdf
    • http://burdentransportation.net/uploads/1/3/0/5/130550868/208317.pdf
    • http://tyleynesgroupllc.com/uploads/1/3/0/5/130588480/dodagumu.pdf
    • http://hostmaster.thelanguagegap.org.uk/uploads/1/3/1/3/131381055/xuxupafusaramo.pdf
    • http://loveandlotuswellness.com/uploads/1/3/0/3/130323181/revuwafaf.pdf
    • http://streakweek.com/uploads/1/3/1/1/131164104/supalajosowexej_tenawaxijek_xamufojilufuxo_butabutud.pdf
    • http://innovativelearningbydesign.com/uploads/1/3/1/0/131070318/b2b1bf.pdf
    • http://heartisam.com/uploads/1/3/0/7/130739517/1345577.pdf
    • http://mylifeonwings.com/uploads/1/3/0/4/130489926/fujebopuwevesu.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_off00007fe3.bin
ae81dc3f1ac2614cbc451b6babd9f02f65db75493add4a67adde99651244e017
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE3 8328 bytes
font_01_sfnt_off00009fec.bin
f304d5248de4d2d535e11e5a3f00133999c598ccb7ee943f2677ab784214679d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEC 16208 bytes