Malicious PDF — malware analysis report

Static analysis result for SHA-256 87d6a7e4e730285d…

MALICIOUS

PDF

35.7 KB Created: 2020-04-12 12:26:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 66782a4dea2adc799dc87fe4a1b85456 SHA-1: fad87ad9d619e725a99dd6cf19f833e0f16214e9 SHA-256: 87d6a7e4e730285debf3abb86386dba8fd8835e9a3d1f109541892ddc086bbc3
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The embedded document body text, though partially corrupted, contains a reference to 'Corso base di fotografia reflex digitale pdf', which appears to be a lure to encourage clicks on the numerous external URLs. No scripts were extracted from this sample.

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://treasurecoasttennisassociation.org/uploads/1/3/0/5/130543868/130543868.html#corso+base+di+fotografia+reflex+digitale+pdf
    • http://nishra-rama.com/uploads/1/3/0/9/130969454/wezon_sugogotomoni_misomagofi.pdf
    • http://ellentilton.net/uploads/1/3/0/2/130289746/wopufepixog-dapizevevid-doxomapibarole.pdf
    • http://showcentral.us/uploads/1/3/1/4/131408917/dc160e8785.pdf
    • http://fpspiritwear.com/uploads/1/3/1/4/131407424/3baf0c.pdf
    • http://kimkrips.com/uploads/1/3/0/5/130541924/b89e3cfceb9ba.pdf
    • http://cre8.work/uploads/1/3/1/4/131406449/pimiraf_tawasufilizuxig_gugowowuk.pdf
    • http://domiciwk.com/uploads/1/3/0/6/130605416/5876624.pdf
    • http://tasmanianpolarnetwork.com/uploads/1/3/0/7/130740497/nodibu.pdf
    • http://cleandatacenterrefresh.com/uploads/1/3/0/4/130494801/ropunesibani.pdf
    • http://jodymorris.net/uploads/1/3/0/5/130543671/gijijunugojosomaji.pdf
    • http://mecasapreventiontoolkit.org/uploads/1/3/0/3/130313145/9610935.pdf
    • http://goodchiroaz.com/uploads/1/3/1/6/131606493/dajulolaveda.pdf
    • http://baerpr.com/uploads/1/3/0/6/130603994/silubefegosub.pdf
    • http://dpbhouse.com/uploads/1/3/1/4/131453056/9750545.pdf
    • http://integratedagriculture.services/uploads/1/3/1/0/131070187/romevenino.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_off0000648c.bin
afebf09f4c2b55783d163b08d222a2e280865639ed64563abbdb89f98b3782f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x648C 8212 bytes

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