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) First seen: 2026-05-09
MD5: a3c439f26c9659f9ec61af292304b793 SHA-1: 07046e3524c97ce832995d5625354f90f31c6d69 SHA-256: bc9fff0210987ace21838fe3a832b901c0cc3395126e718f3653bada5f8f7a9c
96 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 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 PDF link annotation
    • http://edilnordcostruzionidigallina.com/uploads/1/3/1/0/131070073/gisilivezoxewolifez.pdfIn PDF document text
    • http://sjwasserman.com/uploads/1/3/1/3/131380836/549989.pdfIn PDF document text
    • http://actioninchrist.nyc/uploads/1/3/0/6/130621850/69ab4f8adb2.pdfIn PDF document text
    • http://agentcraft.org/uploads/1/3/0/5/130543087/9b2d472339468f.pdfIn PDF document text
    • http://bigsuperman.com/uploads/1/3/1/8/131856160/c6c712b9036.pdfIn PDF document text
    • http://linsjoyfulbite.com/uploads/1/3/0/6/130620666/rosupodu.pdfIn PDF document text
    • http://countercurrant.com/uploads/1/3/0/2/130274301/sogezajixo_wuxidivajajowo_buwowaxex_mitotap.pdfIn PDF document text
    • http://britchap.com/uploads/1/3/0/9/130969446/49f7725.pdfIn PDF document text
    • http://frostelectricalservices.com/uploads/1/3/0/2/130273753/8fbe4eaca.pdfIn PDF document text
    • http://gardengaterentals.com/uploads/1/3/1/3/131398526/vibimogisog.pdfIn PDF document text
    • http://mamasguesthouse.com/uploads/1/3/1/4/131407687/wevizixukazotate.pdfIn PDF document text
    • http://likeablehomedecor.com/uploads/1/3/0/7/130775176/xufenimeregixuxano.pdfIn PDF document text
    • http://lindamiyahiraart.com/uploads/1/3/0/6/130620184/kibavurag.pdfIn PDF document text
    • http://multlog.net/uploads/1/3/0/7/130775076/zomubuxebonokam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 10048 bytes
SHA-256: d37050cd0d568f852efb633773cc975ab2c21e442c657553e11c88754c2bc0ff

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