Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc9fff0210987ace…

MALICIOUS

PDF

35.6 KB Created: 2020-05-21 04:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3c439f26c9659f9ec61af292304b793 SHA-1: 07046e3524c97ce832995d5625354f90f31c6d69 SHA-256: bc9fff0210987ace21838fe3a832b901c0cc3395126e718f3653bada5f8f7a9c
92 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, containing numerous external links to other PDF documents hosted on various domains. The primary PDF itself contains a reference to 'Witchcraft for tomorrow' and is generated by wkhtmltopdf, suggesting a potential lure or content-masking technique. The extensive network of linked PDFs, identified by the PDF_SEO_LINK_FARM heuristic, indicates a coordinated effort to distribute malicious content or traffic, likely for SEO manipulation or to host further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://nationalriskmanagementgroup.com/uploads/1/3/0/8/130874120/130874120.html#witchcraft+for+tomorrow
    • http://edilnordcostruzionidigallina.com/uploads/1/3/1/0/131070073/gisilivezoxewolifez.pdf
    • http://sjwasserman.com/uploads/1/3/1/3/131380836/549989.pdf
    • http://actioninchrist.nyc/uploads/1/3/0/6/130621850/69ab4f8adb2.pdf
    • http://agentcraft.org/uploads/1/3/0/5/130543087/9b2d472339468f.pdf
    • http://bigsuperman.com/uploads/1/3/1/8/131856160/c6c712b9036.pdf
    • http://linsjoyfulbite.com/uploads/1/3/0/6/130620666/rosupodu.pdf
    • http://countercurrant.com/uploads/1/3/0/2/130274301/sogezajixo_wuxidivajajowo_buwowaxex_mitotap.pdf
    • http://britchap.com/uploads/1/3/0/9/130969446/49f7725.pdf
    • http://frostelectricalservices.com/uploads/1/3/0/2/130273753/8fbe4eaca.pdf
    • http://gardengaterentals.com/uploads/1/3/1/3/131398526/vibimogisog.pdf
    • http://mamasguesthouse.com/uploads/1/3/1/4/131407687/wevizixukazotate.pdf
    • http://likeablehomedecor.com/uploads/1/3/0/7/130775176/xufenimeregixuxano.pdf
    • http://lindamiyahiraart.com/uploads/1/3/0/6/130620184/kibavurag.pdf
    • http://multlog.net/uploads/1/3/0/7/130775076/zomubuxebonokam.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_off000060fd.bin
d37050cd0d568f852efb633773cc975ab2c21e442c657553e11c88754c2bc0ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 10048 bytes

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