Malicious PDF — malware analysis report

Static analysis result for SHA-256 f537265b45ab96a4…

MALICIOUS

PDF

43.5 KB Created: 2020-04-03 06:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7e410b2e8db88a1abc254f12b47f98f9 SHA-1: dd2d46138f19fc33994421cbc64cb718b6fe53a1 SHA-256: f537265b45ab96a4a529746ce2eaa06a81a1d777716532f007d9c52c52e237c7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Stage Capabilities: Gather Victim Identity Information T1204 Malicious Link

This PDF document contains a significant number of external links, a technique often used for SEO manipulation or to distribute malicious content. The PDF_SEO_LINK_FARM heuristic indicates a mass external PDF link farm, with 30 generated links pointing to various domains. The document body contains garbled text but includes a reference to 'Trabajo cooperativo en el aula autores', suggesting a potential lure. No scripts were extracted, but the sheer volume of outbound links is highly suspicious.

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://partuschfire.org/uploads/1/3/0/5/130547024/130547024.html#trabajo+cooperativo+en+el+aula+autores
    • http://summerduck.us/uploads/1/3/0/4/130475973/890b41.pdf
    • http://puertasparagarage.com/uploads/1/3/0/6/130622120/lerubederibofute.pdf
    • http://royalglow.net/uploads/1/3/0/7/130739001/2947925.pdf
    • http://deas-guyz.com/uploads/1/3/0/9/130968962/9345153.pdf
    • http://treeoflifecg.com/uploads/1/3/0/7/130776067/f99cb.pdf
    • http://fournetbuildingmats.com/uploads/1/3/0/9/130969896/3afe539e6d78c49.pdf
    • http://bathbombbri.com/uploads/1/3/0/7/130775111/7413609.pdf
    • http://backofficemanagement.org/uploads/1/3/0/8/130813635/fexomujukurad_duxeludoluxi_bosofepeg_gapigikeku.pdf
    • http://onebyrafa.com/uploads/1/3/0/8/130874304/savasi.pdf
    • http://ktwcontests.com/uploads/1/3/0/4/130489075/4302488.pdf
    • http://ciumontreal.com/uploads/1/3/0/6/130639950/xolajas_motuk.pdf
    • http://machomigos.com/uploads/1/3/0/6/130605422/gomujaxi-fopimorub.pdf
    • http://www.19cowleystreet.co.uk/uploads/1/3/1/1/131163733/rapifuvita.pdf
    • http://jennifer-matt.com/uploads/1/3/0/4/130488994/1f43025df76.pdf
    • http://robertpwendell.org/uploads/1/3/0/5/130590154/e584137ea28.pdf
    • http://mytvas.org/uploads/1/3/0/5/130589191/jiwumuvetoxalav.pdf
    • http://novacom-trade.com/uploads/1/3/0/5/130551746/5984214.pdf
    • http://ximvoodoo.com/uploads/1/3/0/5/130543121/5087116.pdf
    • http://maelabellydance.net/uploads/1/3/0/7/130739927/d20b7da9e.pdf
    • http://cabranegra.net/uploads/1/3/1/0/131070340/3266263.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_off00008096.bin
5e10acaca07c97d7c786360646276c37ac1a55c94edd1ddbc6a326b814b40518		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8096 8324 bytes

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