Malicious PDF — malware analysis report

Static analysis result for SHA-256 95722a2d45323a61…

MALICIOUS

PDF

77.1 KB Created: 2021-03-01 04:23:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 51dd8c6c81c7029b24bcac5ef975399d SHA-1: ee4f82f0f1e9c00bf78eebf9a19dcc44686bd9ea SHA-256: 95722a2d45323a6101a8a9a7d753552e4cc4937acd52f24a29c153b4f461bc1e
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://ponafet.ru/aws?utm_term=driving+black%2527s+law+dictionary PDF link annotation
    • http://naturmilans.fun/guwuxulalozezubcnyxd.pdfIn PDF document text
    • https://cdn.sqhk.co/runudori/n8jfzfh/a_c_repair_for_my_car_near_me.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/b468c351e3305.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495042/normal_5ffa9e6cc4611.pdfIn PDF document text
    • http://firstreadersclub.com/53200182796dlq3t.pdfIn PDF document text
    • http://uniques.space/dezarujedatezip394p.pdfIn PDF document text
    • https://nelemiken.weebly.com/uploads/1/3/4/7/134704654/478e09e4df2.pdfIn PDF document text
    • http://eduha.online/how_to_connect_ooma_telo_air_to_wifihes8g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367273/normal_60031167f1635.pdfIn PDF document text
    • https://dixapixukezawe.weebly.com/uploads/1/3/5/3/135388261/3567025.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408864/normal_5fddb1d648f16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368958/normal_6026c3c8773d8.pdfIn PDF document text
    • http://trokot-roznica.xyz/zeds_dead_merch_sale3gaq8.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/fghQjeM/radha_krishna_tv_serial_photos_hd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470837/normal_5fd77094be369.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368505/normal_5fe0a9a0b9349.pdfIn PDF document text
    • https://cdn.sqhk.co/joxutedunik/jibzJgf/92361617434.pdfIn PDF document text
    • https://cdn.sqhk.co/jasojime/jigfhj3/vubipudolevotemal.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_off0000ed9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9B 5596 bytes
SHA-256: d8ce2029cf4dd03e7826e9d24fbda43ee6c39a4aeb56dfe1c993acd26e483476
font_01_sfnt_off000100dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100DD 11308 bytes
SHA-256: 9b4edcc4bf7e5435379295bcf6c3f24f83f58147a1d969fb6ad325c09db711bf