Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9d702332102945b…

MALICIOUS

PDF

38.9 KB Created: 2020-03-29 05:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 437c5f449ecb4bfc23e92e7e93f6841a SHA-1: 768d506e1ddc6298b5d1d635e84a8683456cafe0 SHA-256: b9d702332102945bd4ce4bff71cb0310ffa46bc1e2a7cbc7c8d0d4f36a926884
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with the primary observed URL being http://djspizza1.com/uploads/1/3/0/5/130538996/130538996.html#caracteristicas+de+las+normas+tecnicas. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the immediate intent beyond link distribution.

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://djspizza1.com/uploads/1/3/0/5/130538996/130538996.html#caracteristicas+de+las+normas+tecnicas
    • http://supertekamerica.com/uploads/1/3/0/6/130639845/fisawepikafakogana.pdf
    • http://jinhui-mechanics.com/uploads/1/3/1/1/131164173/tosujenifabopude.pdf
    • http://www.mercyhsarchive.cubicstone.com/uploads/1/3/0/3/130323178/9102946.pdf
    • http://ades-lab.com/uploads/1/3/0/2/130288334/satelepeta_biwalunazit_lozabiw.pdf
    • http://donkahmedie.store/uploads/1/3/0/2/130270942/gilomanidobavuzuw.pdf
    • http://biztriage.com/uploads/1/3/0/2/130272325/129215.pdf
    • http://posters-rock.com/uploads/1/3/0/3/130323403/5108836.pdf
    • http://hostmaster.barcelona-museum.de/uploads/1/3/1/0/131069934/fabuwukukokitev_tavexix_podorik_ginixu.pdf
    • http://www.foodishealth.com.au/uploads/1/3/0/2/130289282/5395905.pdf
    • http://wellosophy.com/uploads/1/3/0/7/130775719/fopuralevujo.pdf
    • http://www.waldwickdems.com/uploads/1/3/0/2/130271031/5108183.pdf
    • http://hostmaster.swiftracingcars.com/uploads/1/3/0/6/130621643/karubivofop.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_off00006e14.bin
7a36968b01466017d2d7a8bb850d502af26ae13c381a907db0531100cf64e5a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 8568 bytes

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