Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4ef4253eb099772…

MALICIOUS

PDF

77.3 KB Created: 2021-02-24 13:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 937833eee855314ff302551bf65e9041 SHA-1: b7218c81cf640c2b2a59b9551f5dfa76566fe05e SHA-256: f4ef4253eb099772ab79b52b4ca108b8e152bf987d32d547970a6b3892a876ea
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/wix?keyword=grindr+premium+apk+ios PDF link annotation
    • https://cdn.sqhk.co/kekagate/jfjjogh/rigajukosidodobotaxira.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/jhghfzz/color_tube_for_tsh.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/haiayhg/yellow_aesthetic_wallpaper_ios_14.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/FxueigY/pac_learning_sample_complexity.pdfIn PDF document text
    • https://cdn.sqhk.co/sovanoniwuva/OjaPLgi/my_tv_pack_airtel_dth_channel_list.pdfIn PDF document text
    • https://cdn.sqhk.co/muwanije/aKB1jgy/montreal_botanical_garden_space_for_life.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/dfHibRG/public_park_with_splash_pad_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/higghcG/tennis_ball_bounce_back_over_net.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/jamm6L9/scarfall_the_royale_combat_offline_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zadorari/gghfP8H/93016093210.pdfIn PDF document text
    • http://shopmzm.site/old_parchment_paper_scroll_template1et9t.pdfIn PDF document text
    • https://cdn.sqhk.co/rapekerokemo/Jijehiz/145564258.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/ghdieTd/emoji_band_quiz_guess_the_bands_trivia_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/kadeposamo/jijahdH/16365675311.pdfIn PDF document text
    • http://flowerport.store/wire_loss_calculator_dcromtx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495860/normal_5feffa280ffc3.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/dG5mJgg/word_nut_level_108.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/firudegix/rezidojimotagelixegoju.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/gsm_module_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/76802261333.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/pivude.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_off0000f039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF039 5168 bytes
SHA-256: ca507e1796862f04c8f6423451cf93980204a118993a36ac1e124ff5c6d11c40
font_01_sfnt_off000101bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101BC 11180 bytes
SHA-256: 9d28585092db01b748527e326942dd2d14f149b366510fb80f64c9b2b40352d5

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