Malicious PDF — malware analysis report

Static analysis result for SHA-256 de7bbd1f06998916…

MALICIOUS

PDF

64.9 KB Created: 2021-02-28 20:38:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e8e544f320e1c75ec01d5c668ccf5b3d SHA-1: d75a5bc91c9a1e7bf920ff3ab543426eb1b24074 SHA-256: de7bbd1f0699891631cde26d156885badb9b1b5c1ecb31789572f881f9b15f54
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://jumiwimov.ru/wix?keyword=origin8+double+trouble+chain+guide PDF link annotation
    • http://reduslim-officialsite.site/pathfinder_druid_archetype_guider7lnd.pdfIn PDF document text
    • http://dorightunion.com/cecil_textbook_of_medicine_24th_edition_free_downloadmijpo.pdfIn PDF document text
    • https://cdn.sqhk.co/wikepijosipi/6oMOghz/ancient_planet_tower_defense_offline.pdfIn PDF document text
    • http://liolika-rsya.ru/gofexotudoepaez.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/agzhc8r/tofamikuvewazeji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420752/normal_6000efdd9bb5a.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/canis_canem_edit_pc_freemc9wd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://runesufosufej.rf.gd/1536317679.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/cycle_time_study_excel_template.pdfIn PDF document text
    • http://kekokid.epizy.com/34500636442.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/61311205292.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/bundesliga_spieltag_19_20_bekanntgabe.pdfIn PDF document text
    • http://dibulazovila.rf.gd/82928355714.pdfIn PDF document text
    • http://zosenesewil.rf.gd/earthbound_oracle_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/dogapimotorepebejovoguwix.pdfIn PDF document text
    • http://tevufom.epizy.com/2213031451.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_off0000c004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC004 5384 bytes
SHA-256: 3a411c67904f76826d08b1304228278a13820f189ffee558207841e49ec09e83
font_01_sfnt_off0000d240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD240 10700 bytes
SHA-256: 00fc0828587defef871fb942ff2dcb8a391439b702a4df2483faab3ea48d2074