Malicious PDF — malware analysis report

Static analysis result for SHA-256 2587dbeb7d51477e…

MALICIOUS

PDF

75.6 KB Created: 2021-01-15 21:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-12
MD5: fb7102d1d8f845e6d5b85024497a8b3b SHA-1: acf832cce6c29dbe4438dd114097d76635f3682e SHA-256: 2587dbeb7d51477ed160d6e46fbe09959f924ce4ca9c07b4a0da2b87fff34a06
236 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://trafftec.ru/wb?keyword=download%20hot%20springs%20story%20lite%20mod%20apk PDF link annotation
    • https://cdn.sqhk.co/xidupesijij/j5Mhfih/social_dev_story_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/how_to_solve_abstract_reasoning_questions.pdfIn PDF document text
    • https://kupubasurunasoz.weebly.com/uploads/1/3/4/6/134695217/sobamabusuvoba_wupanamixas_vawumonirive.pdfIn PDF document text
    • https://mojoranazo.weebly.com/uploads/1/3/4/4/134403481/xoxuki_gegobala_sonexejef_vaxufokut.pdfIn PDF document text
    • https://patelevenimo.weebly.com/uploads/1/3/1/4/131437444/mijagimimudusev.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/86781014211.pdfIn PDF document text
    • https://site-1244917.mozfiles.com/files/1244917/88243021890.pdfIn PDF document text
    • https://jibokogemi.weebly.com/uploads/1/3/4/7/134767321/5fc43fd1.pdfIn PDF document text
    • https://site-1167953.mozfiles.com/files/1167953/alien_bugs_defender.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/managing_impulsivity_worksheets_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/jijivilubimaxodidugadeza.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/fbc3be7e6559a5e.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/19626042864.pdfIn PDF document text
    • https://site-1178066.mozfiles.com/files/1178066/scaricare_app_infinity_su_smart_tv_panasonic.pdfIn PDF document text
    • https://site-1172012.mozfiles.com/files/1172012/animal_jam_codes_2020_wiki.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000e9e1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000e9e1.bin)
    • 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 extracted file (font_01_sfnt_off0000e9e1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA2 2880 bytes
SHA-256: ac64b8af80fcca1e0e594fba8a0f1e66fdecb42d42f059741c9e9f76428d751e
font_01_sfnt_off0000e9e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E1 5632 bytes
SHA-256: 44d73de3686f0f21d41115443bc0bdbac1b08e4bc9c659fdfeb0710418f24a5e
font_02_sfnt_off0000fcff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFF 10776 bytes
SHA-256: db2439c1c48c044e87af073159e4ac6c563f9dd2a83b1f1939ec03ef99dae176