Malicious PDF — malware analysis report

Static analysis result for SHA-256 983073f2d4b3915b…

MALICIOUS

PDF

73.0 KB Created: 2021-02-19 13:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b0f668bbdfa70c9f1389dec8e0bacf6d SHA-1: 6b22cc543b4793e2d77ccbb6a6d68e6d893169d2 SHA-256: 983073f2d4b3915b2af78995fd4003f93b8860e2ef2c0f25369ae8c852b0187d
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://seumenha.ru/wix?keyword=glenshire+wahoo+swim+team PDF link annotation
    • https://cdn.sqhk.co/zudilubal/n74ifgj/muzivokaru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383451/normal_5ffc9dcc891ec.pdfIn PDF document text
    • https://cdn.sqhk.co/degavorofala/iehahfq/zaregojumewol.pdfIn PDF document text
    • https://cdn.sqhk.co/zafowavo/e1hc9ZG/sababulanobokar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476420/normal_5ffda155bb672.pdfIn PDF document text
    • https://cdn.sqhk.co/vefemenivu/cuxtjhL/60011973916.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375344/normal_600c90b427635.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451365/normal_5fdba86dca1f2.pdfIn PDF document text
    • https://cdn.sqhk.co/judixixelof/KGjggep/bridge_constructor_the_walking_dead_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/S2Yo7rs/fazozisutagabusut.pdfIn PDF document text
    • https://cdn.sqhk.co/munenetifu/GOhbbbm/kitten_runny_nose_sneezing.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/dzjbhdU/clash_royale_clan_wars_2_rewards.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/ruzumeb/96461854454.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/weduvexepalanovo.pdfIn PDF document text
    • http://zunebodiz.epizy.com/children_s_animal_picture_books.pdfIn PDF document text
    • http://ruxofepugoloma.rf.gd/samuvademubedepe.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/82690010882.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_off0000e011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE011 5048 bytes
SHA-256: a759901c27a4d3751a1fa6ebc4126dae4281bf1f9cc4231b30aaf3d75882e4ca
font_01_sfnt_off0000f11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11E 11064 bytes
SHA-256: ed1ed1916906eae48df317524c28839125438128032fffc8fb9623fa4d5aabeb