Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd3dd5e35c5079ae…

MALICIOUS

PDF

73.5 KB Created: 2021-02-11 14:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 01349ae7681bfbf5430e9a3f663e842e SHA-1: f7cdc7eda40ac4114e5d8f4a4a2e4221a9efdfcd SHA-256: dd3dd5e35c5079ae98cca88d792bc71f8572e3fc4e8d91a99e4d761836482ed3
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://yafferge.ru/123?utm_term=andy+warhol+diaries+pdf In PDF document text
    • http://fashion-deals.xyz/pikixaloloxomajif1c47.pdfIn PDF document text
    • http://trenolgia.buzz/32613368650m77km.pdfIn PDF document text
    • http://money-team.site/studio_54_pics_no_longer_acceptablezf1wj.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/Ridiihc/smart_pulse_survey_app_5._2_download.pdfIn PDF document text
    • http://bio-ita.fun/bahubali_1_movie_fullrq5w9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497131/normal_60118f798eeef.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/hf6igdV/44513167837.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/PXQjbgf/motor_touring_terbaik_malaysia_2019.pdfIn PDF document text
    • http://moneyindia.site/bafojowowomemawumumu2eclm.pdfIn PDF document text
    • http://cmbclientes.com/34139432198ywvac.pdfIn PDF document text
    • http://chunyoo.com/mental_smartness_synonyms10t3m.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/dazuxujepov/becil_nmrc_admit_card.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/92960926659.pdfIn PDF document text
    • https://s3.amazonaws.com/zubata/77774667833.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/76352875933.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_off0000df91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF91 5312 bytes
SHA-256: 91f305ceb110f6d4d949e92a0be1ee2a93f6f7430d671e77d059c7496b2e7fad
font_01_sfnt_off0000f1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B6 12432 bytes
SHA-256: 6bbd3255282b66e616351299ea9a32a5f9e75447a02a9d8e4b09e3ec45f64c74