Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab600b849d8e7678…

MALICIOUS

PDF

70.4 KB Created: 2021-01-24 03:26:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 22a806897a977484a63efbbfb5c8f2cd SHA-1: d1ce5c56b677269b26adb930dc625c0459b6345f SHA-256: ab600b849d8e7678f66733fa97a7f573ff2b52f76156fa2e9560fa128809dfdd
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/wb?keyword=download%20crossy%20road%20multiplayer%20apk In PDF document text
    • http://foxinawolukomat.iblogger.org/puzzle_page_crossword_answers_may_23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_5ff60e1dee542.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393631/normal_6001f033ab149.pdfIn PDF document text
    • http://nekevofitoruzat.22web.org/89456902316.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488560/normal_5fe02735b468d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490542/normal_6000b053926d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486743/normal_600a4332d6efb.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/tulosa/45617423299.pdfIn PDF document text
    • https://s3.amazonaws.com/nasitevu/catholic_apologetics_study_bible.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/personal_budget_excel_template.pdfIn PDF document text
    • http://somizifiwij.epizy.com/78392536855.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/webuvuvufe.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/gta_vice_city_cheater_apkhouse_game_keyboard.pdfIn PDF document text
    • http://duvufewitopemaw.rf.gd/96841881420.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/zewupamopujitano.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_off0000d3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B6 5476 bytes
SHA-256: 57627145985f15f88d58847d0175bf43efb0f7ac53f5bfcafdce5e3b4454456c
font_01_sfnt_off0000e65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE65D 11304 bytes
SHA-256: 27ac18581dd15431f0a5c0d56e9fcc84e02744ad219f72a7b46e88275bdc7367