Malicious PDF — malware analysis report

Static analysis result for SHA-256 498c148818cd999d…

MALICIOUS

PDF

72.1 KB Created: 2021-02-20 13:51:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 59dc1340e021b0f28fa8aa2fb923969c SHA-1: bcbd45bffc730542297afa785b80d57e564da0df SHA-256: 498c148818cd999d41f7e9103e6e2b086e880cabdfe9f4f22529f3f0bedfdedb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wix?keyword=springboard+book+9th+grade+answers PDF link annotation
    • https://cdn.sqhk.co/pazaxefuma/VxhfGjd/super_jupper_jungle_world_level_80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5fe91503b3b08.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417817/normal_60029ba064c46.pdfIn PDF document text
    • https://cdn.sqhk.co/nivurerazusa/jjhatBe/marshalls_return_policy_different_store.pdfIn PDF document text
    • http://boost-shop.xyz/horde_leveling_guide_1-_110uvlu1.pdfIn PDF document text
    • http://healthyforczechrepublic.site/blockstarplanet_hack_vip_downloadnsnpc.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/qBhdjaR/hitman_goty_upgrade_not_available.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446773/normal_602b33f783225.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382770/normal_602a18c830f37.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/zunewidimem/vafezulumovevirezosadaz.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/danikigamu.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/short_form_certificate_of_good_standing_nj.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/intramuros_famous_tour_guide.pdfIn PDF document text
    • http://kofuzedu.epizy.com/richard_burton_diaries.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/sizabivizi.pdfIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/birthday_images_free_for_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/63464399790.pdfIn PDF document text
    • http://zuxamivim.epizy.com/waxunokizixowupapudeful.pdfIn PDF document text
    • http://jefebewo.epizy.com/be_civil_engineering_books.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_off0000da98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA98 5744 bytes
SHA-256: 8b4d0abae393a0c17973c77cd669c287aca2f59c957cb6ebc2d66ca8119e1960
font_01_sfnt_off0000ee29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE29 11180 bytes
SHA-256: 4bea8c0dbf28f51615129e94147b8420f3282b596d67dec60c78811dbc6c5076