Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d735228c0f7bc46…

MALICIOUS

PDF

72.1 KB Created: 2021-02-12 15:52:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2aebc00a652bb570c8185123fff5bc2c SHA-1: 7102aa5f6430bc8c70a3dd573b45630389503ee2 SHA-256: 2d735228c0f7bc4615c089987a7a2f8e4b639fa5093580aa962e96645c10cb62
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=nba+apk+2k18 In PDF document text
    • http://7gusevshop.space/chillar_party_movie_in_hd5o3pl.pdfIn PDF document text
    • http://selectgetc.top/doxawodomelemanz.pdfIn PDF document text
    • http://betmoy54.com/revue_technique_tracteur_ford_3000_gg5o6q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416787/normal_5ff342ff7a86f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495395/normal_5fc8ec2510080.pdfIn PDF document text
    • http://sdek-24.cc/768906584080a2zj.pdfIn PDF document text
    • http://clipshd.design/476260964799m32n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457592/normal_6019c1ab7641d.pdfIn PDF document text
    • http://reduslim-sito.site/money_makers_osrs_f2pcm3s1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479917/normal_601dabbf706de.pdfIn PDF document text
    • http://maewallace.com/wekadebaxukab4up5l.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/nafibanefexex/46693280327.pdfIn PDF document text
    • http://tesoxukezeziles.epizy.com/mobogenie_app_free_for_android_tablet.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/status_for_fb.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/jimmy_kimmel_live_episode_guide.pdfIn PDF document text
    • http://bumojito.rf.gd/shimla_tour_video.pdfIn PDF document text
    • http://delupujak.epizy.com/56854044870.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/ecs_blue_green_deployment_terraform.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/bejeweled_android_soundtrack.pdfIn PDF document text
    • http://palisenedabelo.epizy.com/mojezuk.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_off0000df9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9F 5056 bytes
SHA-256: 45f77185ca8ad918b9c8d12b2598773031e03dc1f32287116f2c683e58601b01
font_01_sfnt_off0000f0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F4 10016 bytes
SHA-256: 887c1ba54b0d5da2e09ffe0379f4096ef6d58579fd9307387413704ea38fe67b