Malicious PDF — malware analysis report

Static analysis result for SHA-256 9010eefeb44dc547…

MALICIOUS

PDF

71.9 KB Created: 2021-02-15 01:47:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ade1086fcbc2654c0643641c247105bf SHA-1: 63bb3699e93d3e646c98513edae55c99d79248b8 SHA-256: 9010eefeb44dc5473fd85657d26d65f6b8267e14a41a545f9384b06a6b445679
136 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
  • 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://jacksth.ru/wix?keyword=exponential+growth+worksheet PDF link annotation
    • http://hookup153.fun/48176431599qkvsd.pdfIn PDF document text
    • http://everydays.space/jofimajorebobobadimu2cmby.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495686/normal_5fdee4c92d2d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446019/normal_6001d1567f197.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373239/normal_6029b6673b5e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470532/normal_5ff3c78eee68d.pdfIn PDF document text
    • http://toppiksnack.xyz/grade_10_filipino_module_with_answer_key2lcf1.pdfIn PDF document text
    • http://fito4ka.xyz/xozisiverakanubufij5ay.pdfIn PDF document text
    • https://cdn.sqhk.co/jadidawa/jdThafA/zegoriv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vavale/60630759565.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/streamlined_energy_and_carbon_reporting_legislation.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/cadasil_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/booster_seat_guidelines_mo.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/angular_form_disable_autofocus.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/metulebebuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/44978413775.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/rejetojimexune.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFB 5052 bytes
SHA-256: 9c746458e4e657aa615e3618ed21c5da3ec7f179c80e84b2a3f8824cba3e0c39
font_01_sfnt_off0000de28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE28 11368 bytes
SHA-256: 3d1d03b3af2ccbce4be713dc58da501c2c5f9fc340a3336da802017a1b10b769
font_02_sfnt_off000104c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C4 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71