Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ffb93e1c99f561b…

MALICIOUS

PDF

34.4 KB Created: 2020-04-06 02:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 650a4179fc2a61205390bfd1a000ed88 SHA-1: 873a0667eb67e461a1e7aa0d43ed130895bc97de SHA-256: 7ffb93e1c99f561b6a0463f56aa90b6d229db849a413684b4babd9937ecca517
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to a 'nursing care plan'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, many with numeric slugs, pointing to various domains. These links likely serve to drive traffic or host further malicious content.

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://myamazonuk.com/uploads/1/3/0/7/130739530/130739530.html#nursing+care+plan+for+hemothorax
    • http://coastalcredentialingsolutions.com/uploads/1/3/0/2/130288318/nojomerotajarag.pdf
    • http://notariousa.com/uploads/1/3/0/2/130272250/takipog_guzavu_winimur_saxixegit.pdf
    • http://thietkecanhquan.org/uploads/1/3/0/7/130739480/wisabozokojis_jobapuz_debuvubina.pdf
    • http://shaka1652photos.com/uploads/1/3/0/6/130603942/7513516.pdf
    • http://museofyourownmaking.com/uploads/1/3/0/4/130483122/kilasuvomo.pdf
    • http://isawipfli.net/uploads/1/3/0/7/130776585/japovoz_sifajogis_vuduvivuva_sarase.pdf
    • http://drannettewestministries.com/uploads/1/3/0/7/130739169/rurax_resege.pdf
    • http://webdisk.collegedemsatiu.com/uploads/1/3/0/8/130874157/vovomulutowixo-bolew.pdf
    • http://nataliemerritts.net/uploads/1/3/0/7/130740146/mofivegepujusesorix.pdf
    • http://nedcurcargo.com/uploads/1/3/0/6/130604114/gobutud_rivekewuv_novureluxogaxuz_jixapa.pdf
    • http://liferr.app/uploads/1/3/0/8/130874439/4286369.pdf
    • http://cocovonbonbon.com/uploads/1/3/0/2/130289246/roduwuvojosugu_jixepuxigoxef_vawavuxi.pdf
    • http://aomhm.org/uploads/1/3/1/4/131437516/sowuxabix-dulemanaj-wuriwuvipi-modulax.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_off00005e35.bin
7af6e5043ec56115bd3ce167660e86d8b8a2c697844f30c82bdce123aa2e950d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E35 7716 bytes

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