Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ed261cc89466f0…

MALICIOUS

PDF

71.2 KB Created: 2021-02-19 19:49:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 65d86a764d69567d19c799c391d0e563 SHA-1: fbdefbe15bca70f8103521c38483b13874c05854 SHA-256: f5ed261cc89466f04cb681d87d1823a402b0c4f75cf1b8a99c81101e70fdf880
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://maypoin.ru/wix?keyword=real+racing+3+hack+apk+latest+version PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374369/normal_6000ae5a5509d.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvupewog/hyMVjeR/potion_explosion_2nd_edition_differences.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/hyghdjc/infected_ingrown_hair_cyst_armpit.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopiroxab/hBReheF/granny_horror_game_2_player.pdfIn PDF document text
    • https://cdn.sqhk.co/kufagilan/b9ifjiF/faith_family_church_mn.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/UJhazhb/lightning_wyvern_ark_command.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482854/normal_5fcf7b665f642.pdfIn PDF document text
    • https://cdn.sqhk.co/dibidoretu/Etghje8/85953775640.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/jixeremipet/11985280196.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/jejupenuxovegu.pdfIn PDF document text
    • http://xepododulujex.epizy.com/jizituwafaxixij.pdfIn PDF document text
    • http://gidiruroxab.rf.gd/hapi_drum_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/6643882148.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/us_fda_susar_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/musokejixami/resume_template_for_fresh_graduate_free.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_off0000d808.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD808 5488 bytes
SHA-256: e4bebe1286b1bb23d1aae8f13ab3dc9a82c15c00360cc79a1f74c32af1e3ffac
font_01_sfnt_off0000eabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABF 10748 bytes
SHA-256: 3086ceeadc335ce2ccd47d5359c95c8afd81e3ed73f50dd60e3c66a1c22fe58c