Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f76a311880f72b…

MALICIOUS

PDF

69.6 KB Created: 2021-02-03 17:15:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 4e7274f89909348efa437475b194c563 SHA-1: 3ca2d49f181d15f4aae083bbf3342dedd1631e23 SHA-256: 95f76a311880f72bf913450bdc096bf8540eb5d7f7659ea0073deb94b888d7e6
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://bologen.ru/shook?utm_term=double+dragon+4+ps4+europe PDF link annotation
    • https://cdn.sqhk.co/sadetujadufi/W6OjiYp/pixel_guns_3d_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/navuwamas/fgdohmv/brick_builder_star_wars_ucs.pdfIn PDF document text
    • https://cdn.sqhk.co/menigopas/bDj6hjn/action_trucking_tracking.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/gjgjV2p/round_corner_rectangle_adobe_illustrator.pdfIn PDF document text
    • https://cdn.sqhk.co/galuladoxaka/fMqlcic/2919733836.pdfIn PDF document text
    • https://cdn.sqhk.co/pumibavi/ihegehc/vopaxurokizulavifupapor.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/nqhd0iP/77155000961.pdfIn PDF document text
    • http://tumerasiwabuzip.22web.org/konkani_catholic_bible_free.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/gfgsOgj/rust_achievements_not_working.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifekubipaxo.epizy.com/45485190151.pdfIn PDF document text
    • http://zifasodokid.epizy.com/avery_mailing_labels_8160_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/city_car_driving_lamborghini_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/wemitawiradowenafomiw.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/xadewozugeruwi.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/tadasexe.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_off0000d54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54A 5352 bytes
SHA-256: ee03381245803294d99b1f22719127c96f4a5fbe2fd51bf2bc6913a10b01595e
font_01_sfnt_off0000e790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE790 9968 bytes
SHA-256: e9da65730f419d1921fede1ab37f24d8efd68208a6e7d4b3beb0fde3cb123100