Malicious PDF — malware analysis report

Static analysis result for SHA-256 c711cfeeb7b17229…

MALICIOUS

PDF

65.4 KB Created: 2021-02-27 00:07:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: c895b4541be598789aa8b7bf1c3270a8 SHA-1: 31d288f62d15269d72aed443b2573acedca54d92 SHA-256: c711cfeeb7b17229e5537d3f65fd68862d426e536f561e2bde9490c0b7bfa823
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which are part of a link farm designed to manipulate search engine results. The primary malicious URL identified is 'https://crophysi.ru/award?keyword=powerscore+critical+reasoning+bible+pdf', which is likely used for phishing or to redirect users to further malicious content. The ClamAV detection and ML classifier also indicate malicious intent, consistent with a phishing or SEO-based malicious content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8899

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://crophysi.ru/award?keyword=powerscore+critical+reasoning+bible+pdf PDF link annotation
    • https://paporese.weebly.com/uploads/1/3/1/0/131071113/cd2d6ba0ec.pdfIn PDF document text
    • http://fakojel.22web.org/warframe_eidolon_guide_chroma.pdfIn PDF document text
    • http://rutonujak.iblogger.org/past_continuous_tense_worksheet_with_answers.pdfIn PDF document text
    • https://fomimelagesuto.weebly.com/uploads/1/3/1/4/131406840/borejividoge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sesijesule/email_google_sheet_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/mawavafofavepuv.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/calibre_kindle_collections_plugin.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/steve_madden_all_white_platform_sandals.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/mabakinaneme.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/85970694883.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/lejujojawana.pdfIn PDF document text
    • http://lumolak.rf.gd/grimoire_spells_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/potential_transformer_standard_ratios.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/review_fone_qcy_qs2.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d36d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD36D 5556 bytes
SHA-256: 54e1dea0826b9d3f6fd5a0bf45a3ae688c8e046fe10f9c5cd30cf8732413fa2f
font_01_sfnt_off0000e66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66E 10636 bytes
SHA-256: 5d5f067a79897c47070e5fa1ff0c3771472fc94cdbc22896ed0ffda0d9c8805f

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