Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d30a919b38aa7ae…

MALICIOUS

PDF

72.4 KB Created: 2021-03-07 08:01:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fc2fe94afca95de38c0f093e05aec6b7 SHA-1: c9fd5c68b4f3669ba34641d93cfd976910527b36 SHA-256: 7d30a919b38aa7ae0e6d9c788b79e0636820b6fdc6482e0069f9c3e1d3051bf7
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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/award?keyword=bissell+powerforce+compact+belt+size PDF link annotation
    • http://shlifovka-pol.website/what_is_wrong_with_blanche_in_a_streetcar_named_desire3mggs.pdfIn PDF document text
    • http://keepxufi.space/44021452257f19sr.pdfIn PDF document text
    • https://tozabofosizo.weebly.com/uploads/1/3/5/3/135340530/kegavixukopa-boveji-kanixogip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489852/normal_5fff7c5bb30b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389816/normal_6031baa998761.pdfIn PDF document text
    • http://reduslim-eu.site/hoovey_parents_guide4oz0p.pdfIn PDF document text
    • http://update-win20.online/motorola_talkabout_t5300_range4r4kz.pdfIn PDF document text
    • https://sagagokibifaku.weebly.com/uploads/1/3/4/6/134625973/pujuwimorowokup_gadanusilubas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488558/normal_5ff69421b339e.pdfIn PDF document text
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/1040235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390095/normal_5fd1d095d1cf3.pdfIn PDF document text
    • http://akmurzina.com/65850108944yy41l.pdfIn PDF document text
    • https://nogudoge.weebly.com/uploads/1/3/4/0/134017621/nukunakiti.pdfIn PDF document text
    • https://pidodogifir.weebly.com/uploads/1/3/1/3/131383649/4663373.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/zaxuledo/27427468716.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/javafx_scene_builder_2._0_eclipse.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/what_is_a_mri_guided_breast_biopsy.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/jinakawigojefajadobuwite.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/nalixedavebaderaxaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/autocad_2015_for_windows_10.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_off0000dcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF6 5492 bytes
SHA-256: 05f2123e84832d1ba08069e47723cd370c6344f97b30aed6e5d8432cf39b118b
font_01_sfnt_off0000efaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAA 10712 bytes
SHA-256: b38995851eee3b07626ffc834d09bbdd34f179cc7bc6f41d6ac05bdf2984ec37