Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f654200a99cd705…

MALICIOUS

PDF

83.9 KB Created: 2021-02-28 17:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5e24ac60117dd230ae4e17618f534e90 SHA-1: a9b3852a17aef220548b58e45f984d31b0112270 SHA-256: 5f654200a99cd70502e2e92943402bba8dde7de3869b99448f10ed9477bc1e76
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://pelibifir.ru/wb?keyword=how%20to%20change%20belt%20on%20ariens%20lawn%20mower PDF link annotation
    • http://outputqwvk.space/32519185125zjsh3.pdfIn PDF document text
    • https://cdn.sqhk.co/naxokujim/xheP4ij/50671937324.pdfIn PDF document text
    • http://help-mediasupport.com/46275707040lo17i.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487419/normal_6000d6ac56ee3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371790/normal_600274579426c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409122/normal_5ff15dedf17a4.pdfIn PDF document text
    • http://lnstagram-helping.live/what_are_the_four_types_of_claimsgajkx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5fd0e08dab02c.pdfIn PDF document text
    • http://forpost-electrica.ru/706223178290xh8g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411683/normal_5fca9cc843779.pdfIn PDF document text
    • http://varistop.site/download_iqro_1_sampai_6m143k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383579/normal_5ff19aa79f247.pdfIn PDF document text
    • http://sellforce.ru/book_of_thoth_etteilla_tarot30hmh.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/viboxikuz/python_programming_language_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/evenflo_symphony_e3_65_lx.pdfIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10953 5408 bytes
SHA-256: 229a53b0317f98c94887a9b86f0b71b7c1d2a90b8ec56362114132774ab296a3
font_01_sfnt_off00011b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B9D 12000 bytes
SHA-256: bf00ad9a7a97233f61efeba1fc70bff77562cf93608619c4d3f7febba4bb7e0c