Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4d85b63863dd1fb…

MALICIOUS

PDF

39.8 KB Created: 2020-03-16 02:09:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6b2348c35ae616adda5fb00d889e94c9 SHA-1: cb0433e209e7c3d55d881133434698b200cc8ab6 SHA-256: f4d85b63863dd1fb501af285029da479ccf96c49cd5ea6f6a9a672e777039067
62 Risk Score

Malware Insights

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

The PDF document contains a lure related to employment and Schengen visas, directing users to multiple external URLs. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of links, suggesting a tactic to distribute malicious content or phishing pages. The primary URL, 'http://nsylmc.brdge.org/uploads/1/3/0/5/130543256/130543256.html#employment+letter+for+schengen+visa+template', appears to be the main landing page for this campaign.

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://nsylmc.brdge.org/uploads/1/3/0/5/130543256/130543256.html#employment+letter+for+schengen+visa+template
    • http://bloggersforacause.com/uploads/1/3/0/4/130490875/6032721.pdf
    • http://pilateshighfields.com/uploads/1/3/0/6/130620410/xiratenarurir.pdf
    • http://canon-services.com/uploads/1/3/0/4/130491444/808d2f3.pdf
    • http://carriehohmann.com/uploads/1/3/0/8/130813781/nuxegomazemikoxisos.pdf
    • http://www.lakeandplain.com/uploads/1/3/0/7/130740206/a5c61dde7ee.pdf
    • http://www.mbspangea.com/uploads/1/3/0/2/130287257/muvatorenixegalokobi.pdf
    • http://coateschicken.com/uploads/1/3/0/2/130270936/7346786.pdf
    • http://www.klouwags.com/uploads/1/3/0/8/130874233/160260.pdf
    • http://pressadvocate.com/uploads/1/3/0/8/130873735/dezudijek_siwumuvadim_bowomikugosatam.pdf
    • http://lflbdemocrats.com/uploads/1/3/0/7/130739353/nawubapan.pdf
    • http://www.cantonchurches.org.uk/uploads/1/3/0/6/130604111/sukoboge-zopiz-funavokezuk.pdf
    • http://mta-sts.mail.nhmochamber.com/uploads/1/3/0/9/130969987/4148614.pdf
    • http://www.trombonestuff.com/uploads/1/3/0/7/130775830/113208e30fe8575.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_off00006fff.bin
01dd655079fb40b6ec30c40bd4437c108185a265286aaff340c10c7aadebde7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFF 8920 bytes

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