Malicious PDF — malware analysis report

Static analysis result for SHA-256 2793f5e57a491542…

MALICIOUS

PDF

37.3 KB Created: 2020-04-05 06:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2677325c0aa9a759f5daa0f0800ab838 SHA-1: 4b390e86cd01482bfdbb8577c057c24243fd9455 SHA-256: 2793f5e57a491542cb259adddb626e56ac54611d86672ce3abf2fd4ed24ebb86
72 Risk Score

Malware Insights

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

The PDF document contains a lure for downloading a printer driver, disguised with a visual download button. It also features a link farm of 15 external PDF files hosted on various domains, suggesting a tactic to broaden reach or evade detection. The primary URL points to a specific driver download page, indicating a potential phishing or malware distribution attempt.

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://chiroworksinfo.net/uploads/1/3/0/6/130639244/130639244.html#hp+deskjet+2540+driver+download+for+windows+7
    • http://ourentlife.com/uploads/1/3/1/4/131483112/8954623.pdf
    • http://thedohaus.com/uploads/1/3/0/5/130588258/12350a0.pdf
    • http://heartlessonline.com/uploads/1/3/0/9/130969360/6198121.pdf
    • http://silvabuildings.com/uploads/1/3/0/9/130969130/911bf86217e6709.pdf
    • http://hairdimensionsthesalon.org/uploads/1/3/1/3/131398313/kenivezesa_rewepe.pdf
    • http://birththepurpose.com/uploads/1/3/0/6/130621801/6450966.pdf
    • http://clothingvn.com/uploads/1/3/0/7/130775109/suretana_vatewubazuno_radelo_xutomu.pdf
    • http://mikimortgages.com/uploads/1/3/0/4/130483537/fepopajawi_vugakoziwew_wotojizofogubit.pdf
    • http://eoinbarry.com/uploads/1/3/0/6/130639479/748b49c382.pdf
    • http://onsecondwatch.com/uploads/1/3/1/1/131163867/0498e2f70a.pdf
    • http://thebaserevelstoke.com/uploads/1/3/0/6/130621003/7633301.pdf
    • http://mediapast.net/uploads/1/3/1/1/131163851/443d61.pdf
    • http://alabamamitigation.com/uploads/1/3/0/4/130489132/firunip.pdf
    • http://keithdirvine.com/uploads/1/3/0/2/130289479/1eb9a.pdf
    • http://nightowlcandleshoppe.com/uploads/1/3/0/4/130476243/c0a836d4996.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_off000068ca.bin
01b5b819322681f984b7ca7ac6a23fd100237bbbd658fb887ec2c85aa3ec0320		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68CA 7960 bytes

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