Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ab9ab652c700eb0…

MALICIOUS

PDF

49.0 KB Created: 2020-03-23 05:07:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7421feb4c722787aac9d44ac40409d36 SHA-1: 6c2b9d4459fc81d228b4a6636847344d7d785ac3 SHA-256: 9ab9ab652c700eb09636dd785cdc1f83772970b5d69fbb26b3e4874c6fb89f10
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The document body, though partially corrupted, contains a URL that appears to be a lure for chapter summaries, which is consistent with a phishing or content-luring attack pattern. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to generate traffic or distribute content through a network of linked PDFs.

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://geile-alina.com/uploads/1/3/0/8/130814510/130814510.html#llamada+a+las+puertas+del+cielo+resumen+por+capitulos
    • http://www.babywinter.org/uploads/1/3/0/8/130874495/zegajezel.pdf
    • http://mx.bikethewilds.com/uploads/1/3/0/6/130621695/kizoketajikamomelij.pdf
    • http://djroddie.com/uploads/1/3/0/3/130379244/kufidirifose_wepap_kefesa.pdf
    • http://bowennh.com/uploads/1/3/0/9/130969850/7930873.pdf
    • http://myluxecandy.com/uploads/1/3/0/7/130740623/363215.pdf
    • http://hinterlife.net/uploads/1/3/0/2/130273617/3922968c8a.pdf
    • http://cbcsomerset.com/uploads/1/3/0/4/130483285/5075729.pdf
    • http://www.meafordhavenforsale.com/uploads/1/3/0/5/130588581/28f32c97f0d660.pdf
    • http://kelliekrischbaum.com/uploads/1/3/0/5/130551089/7848706.pdf
    • http://dxme.org/uploads/1/3/0/8/130814681/bugojepux-darawubaxexil.pdf
    • http://avenuesacademics.com/uploads/1/3/0/4/130476143/rubunuboxi.pdf
    • http://feedshackandtack.com/uploads/1/3/0/4/130488955/xepukitanufegelet.pdf
    • http://clickfraudmanagement.com/uploads/1/3/0/7/130739007/govibetuwawip.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_off0000961b.bin
7b7a319420a1192b0f4aa26e2e3b57c0ae9326c3aceb88ebd924cbf80cd9d034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x961B 8432 bytes

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