Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0f7c117501c3cc6…

MALICIOUS

PDF

65.6 KB Created: 2021-02-10 23:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5e6fddd1495390df616207b51b0ba360 SHA-1: 3d7e3563b0ba6adc4abbf86711b455ce731adb5e SHA-256: b0f7c117501c3cc6c36e9e6893cd598c1b823f2d5e88e2e4a3a312f3d6b8186a
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://leonvi.ru/wb?keyword=child%2044%20full%20movie%20free PDF link annotation
    • https://cdn.sqhk.co/fatidizeru/7fiTthd/tuxepiwiwowanefudiwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419191/normal_5fe14ea8d96c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477367/normal_60033a8c1a9de.pdfIn PDF document text
    • https://cdn.sqhk.co/sejejajoxej/rLofhal/cnc_router_plans_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403119/normal_5fdd3914ae708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419410/normal_5fc74b014cc44.pdfIn PDF document text
    • https://cdn.sqhk.co/sobexofap/icHZidr/16576604304.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492600/normal_5fcdca3180b9b.pdfIn PDF document text
    • https://talurepif.weebly.com/uploads/1/3/4/6/134603846/3da73f51.pdfIn PDF document text
    • https://cdn.sqhk.co/sepetuvab/ZmuyOj7/free_vector_europe_map_ai.pdfIn PDF document text
    • https://moxitamun.weebly.com/uploads/1/3/4/0/134040854/deburotilume-sidavikepoke.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/ghhahhY/96973720450.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxubefe/EPiTifM/ncert_solutions_class_9_science_chapter_2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370074/normal_602201281276d.pdfIn PDF document text
    • https://cdn.sqhk.co/zinumazak/gcxjhCr/ruvosirejulemonux.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FB 4812 bytes
SHA-256: 48cab138c19e65aef1adf5a03a509f67c3c067f005dcb40dbda448ab58a3c86a
font_01_sfnt_off0000d234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD234 11176 bytes
SHA-256: aed389aed4f399938e521c1b5401a06a58f965d884264055d916beef7e207143