Malicious PDF — malware analysis report

Static analysis result for SHA-256 45303aeeecac5d08…

MALICIOUS

PDF

70.1 KB Created: 2021-02-13 09:06:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e192824682e07dc0b2b812fbf20d5986 SHA-1: b9a841c230845b1c49ed50612cd64c590a748d71 SHA-256: 45303aeeecac5d08c4506f8efa0a94482a2a81a8ce3b68feec2bb955ff10d729
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://leonvi.ru/wix?keyword=geometry+dash+apk+mod+2.11 PDF link annotation
    • https://cdn.sqhk.co/natefisaka/UTWhd0k/cnc_simulator_turning_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/ihORogd/gorerevilali.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502819/normal_6001beff1cb89.pdfIn PDF document text
    • https://cdn.sqhk.co/butexuvokufo/9jitPgi/89829901775.pdfIn PDF document text
    • https://cdn.sqhk.co/feledigowud/9vOhgha/table_tennis_3d_mod_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372074/normal_5fcbe4ebbf1c4.pdfIn PDF document text
    • https://cdn.sqhk.co/segevenujuka/6uFhdix/f1_tv_roku_mexico.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477864/normal_600a5acdc5d50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379362/normal_5fc70fc5c2f08.pdfIn PDF document text
    • https://cdn.sqhk.co/puberufibo/jhhe0he/vector_addition_using_phet_simulations.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/e6ibV9f/nosekumapafogorerikip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475376/normal_5fe4d519acd07.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwemajufa.rf.gd/kujalexopomitukekixukap.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/xononedigisewixivedoxade.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/the_dugong_sea_cow_ielts_reading_answers.pdfIn PDF document text
    • http://jaziwovapotulit.epizy.com/bluestacks_for_windows_8_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/91487479065.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_off0000d4f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F5 5580 bytes
SHA-256: b4eed4e13ba87647ac5fe4c4cc1a545efb11e9a2d82e7763f869dbb6f7165866
font_01_sfnt_off0000e7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D6 10320 bytes
SHA-256: 40485d2b73798ce2e51fc2f55b5b03fe5cec1068908959b29e68a45a11e03fc6