Malicious PDF — malware analysis report

Static analysis result for SHA-256 82827054f8b7682c…

MALICIOUS

PDF

37.8 KB Created: 2020-06-04 22:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a5341f6913ef0be621f4dfea7a51b76 SHA-1: 948a799b1c4ee58e9753107cf8ad10522f5fe2bd SHA-256: 82827054f8b7682c6d1ccdda1bd108fa5bce916b28a4de9d5e7452e5cecdf8b3
70 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, many of which are structured in a way that suggests SEO manipulation or a link farm. One of the embedded URLs, 'http://host142.carmichaelnl.com/uploads/1/3/0/4/130476458/130476458.html#mp3+youtube+download+free', appears to be a lure for downloading potentially malicious content. The presence of a visual download button further supports the malicious intent of directing users to external resources.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://host142.carmichaelnl.com/uploads/1/3/0/4/130476458/130476458.html#mp3+youtube+download+free
    • http://pengscompanystore.net/uploads/1/3/1/4/131437275/petewipodokinaf.pdf
    • http://wichitaluxuryforeclosures.com/uploads/1/3/0/6/130603802/nuzasejokatik.pdf
    • http://mta-sts.mail.articledefini.com/uploads/1/3/0/5/130588426/82ce1eabe.pdf
    • http://fussyquandary.com/uploads/1/3/0/9/130969899/vepireduzu.pdf
    • http://al-takfir-al-sihriu.net/uploads/1/3/0/3/130323518/6c0f9370e9f0.pdf
    • http://pstransport.net/uploads/1/3/0/5/130588698/5521899.pdf
    • http://store.shopandshine.com/uploads/1/3/0/9/130969470/4855653.pdf
    • http://automobilescompany.com/uploads/1/3/0/2/130289595/nediluzawa-vitimikof.pdf
    • http://aspemag.com/uploads/1/3/0/6/130604787/rekepixud-famenalulox.pdf
    • http://host142.carmichaelnl.com/uploads/1/3/0/4/130476458/terms.html
    • http://host142.carmichaelnl.com/uploads/1/3/0/4/130476458/dmca.html
    • http://host142.carmichaelnl.com/uploads/1/3/0/4/130476458/policy.html
    • https://dakemevodugu.files.wordpress.com/2020/06/9151572448.pdf
    • https://wujapilopuxi.files.wordpress.com/2020/06/40131429910.pdf
    • https://duroxonizisi.files.wordpress.com/2020/06/rinatexenipexip.pdf
    • https://bakokegibap.files.wordpress.com/2020/06/bejudewogujogomozawup.pdf
    • https://sedavamajux.files.wordpress.com/2020/06/57251592256.pdf
    • https://keganuforuro.files.wordpress.com/2020/06/gofiliwokubepeletijeloz.pdf
    • https://zexixomiwos.files.wordpress.com/2020/06/66230916340.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_off000060de.bin
a65cc9c352ee0bffc8883770605cb63c29cc7fb5e711dd4f68c0dd6f2acb0cfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60DE 17012 bytes

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