Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb88e64db587dfa…

MALICIOUS

PDF

69.1 KB Created: 2021-03-03 20:27:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 532d0bf09d285b0c5b9aaf6aaa207dd5 SHA-1: 3766a56d5be4b56a8f1ce748866bba37201e4d34 SHA-256: 1eb88e64db587dfa7a1f866ae123593ed82084b23e3fe10576d67b941b649dad
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://jumiwimov.ru/award?keyword=zmodo+h.264+16+channel+dvr PDF link annotation
    • https://cdn.sqhk.co/dokederajo/V8hjgeP/vested_simple_reversionary_bonus_calculation.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459469/normal_601644a6b07c8.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/hfVBqch/celebrated_jumping_frog_of_calaveras_county_analysis.pdfIn PDF document text
    • https://cdn.sqhk.co/disonixures/gjEidhd/ghost_in_the_shell_arise_border_5.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/lowuwofuxali/hyphenated_words_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/wevoduxuwanavuxarevonaw.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/zovonekejis.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/eastern_airlines_flight_401_ntsb_report.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/72658792158.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/jack_and_the_beanstalk_the_real_story_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/fibot.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/tommee_tippee_bottle_maker_instructions_manual.pdfIn PDF document text
    • http://pinezininefos.epizy.com/zapekiru.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/fokuzisixidonisoxov.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/65942297017.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_off0000d276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD276 5476 bytes
SHA-256: 73eb30373c99e0bf211c9ed8db93ba48fd05b0852965aad0eddd20cb963d39c0
font_01_sfnt_off0000e506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE506 10184 bytes
SHA-256: 17354421d6a29aac6029d166b4918c3b4b1afa0df56d56e141a5017d1fa003aa