Malicious PDF — malware analysis report

Static analysis result for SHA-256 310be25ab91944a4…

MALICIOUS

PDF

50.2 KB Created: 2020-04-14 06:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 94b498b77725ba473f15eb71e76021e5 SHA-1: 205c2dc5662f39dcfe711caae737a80112290fb4 SHA-256: 310be25ab91944a47c66e4fe80758af1d12272efc5d2c9b21e957ee8497733b6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 T1598 T1598.002 T1598.002

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, which is indicative of SEO spam or a link farm. The document body, though heavily obfuscated, contains text related to 'shooter games apk', suggesting a lure to attract users interested in such content. The embedded URLs point to various domains, likely part of this link farm strategy.

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://jkgconsulting.ca/uploads/1/3/0/8/130814871/130814871.html#shooter+games+apk
    • http://hygienixtextiles.com/uploads/1/3/0/2/130273944/vevage.pdf
    • http://alcoholfree.beer/uploads/1/3/0/5/130541904/kesilagilodadetejor.pdf
    • http://studiorose.net/uploads/1/3/0/3/130313414/432442.pdf
    • http://eleneongroup.com/uploads/1/3/0/6/130622093/9ee14547d194.pdf
    • http://portfolio171819.irenevanderspoel.com/uploads/1/3/0/4/130483198/sezoluvejom_sovalogom_wagaloli_pijavetodabofo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a7e.bin
9cf387d6955aa1dc5232bd3208622234b63f17e1b79f37263375f18332daa79a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7E 8640 bytes
font_01_sfnt_off00009b96.bin
b38e857a6a45169dfdcf898a94be42fd763dcad9e71676016227aa663b494380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B96 20308 bytes

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