Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab07bbf3a4b93f2…

MALICIOUS

PDF

69.0 KB Created: 2021-02-17 07:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3124a692819015c8cc3e11c187670bcc SHA-1: 9225fef0da3d2c7e1bb4092b692a76de31c290af SHA-256: eab07bbf3a4b93f24eb6f12e1b1c95376c612644260e4760dec1e41353b08ada
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://seumenha.ru/wix?keyword=fallout+4+prima+guide+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475208/normal_5fcf39c085238.pdfIn PDF document text
    • https://siresikewutawin.weebly.com/uploads/1/3/0/7/130739490/8031119.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367625/normal_5fceda95aff90.pdfIn PDF document text
    • https://cdn.sqhk.co/numanazolov/ehijaBe/sunbeam_ice_cream_frozen_yogurt_maker_manual.pdfIn PDF document text
    • http://eushopvmn.site/vscode_markdown_plantumlohrls.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxowowi/4hjjeaJ/spring_ninja_unblocked.pdfIn PDF document text
    • https://zatitobeme.weebly.com/uploads/1/3/4/0/134097178/voligojuzivas.pdfIn PDF document text
    • https://cdn.sqhk.co/sitosuduf/y42eiiw/strikeforce_kitty_3_y8.pdfIn PDF document text
    • https://cdn.sqhk.co/gopuxipo/cibicjd/how_to_start_homeschooling_in_south_carolina.pdfIn PDF document text
    • http://itclick.info/powerpoint_presentation_templates_nature1aelw.pdfIn PDF document text
    • https://kibugisire.weebly.com/uploads/1/3/4/0/134018652/danonunoxo.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/dejazuvorira/letter_of_recommendation_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/osrs_crafting_guide_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/28450154474.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/audio_bible_commentary_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/vaaste_song_mr_jatt_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/delitajelubifufumotawaros.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_off0000d1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1C9 5224 bytes
SHA-256: 840d36360e9034a7d0d2923964a22e63c3b6d17708012394ddc932a9ecf551f3
font_01_sfnt_off0000e388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE388 10524 bytes
SHA-256: 00d235ac484b2f1538bfb9edafbc9cb5b6ecafe572169ac29f98b2b0e02f4975