Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d5fdbe59d3ec15…

MALICIOUS

PDF

72.9 KB Created: 2021-02-19 15:01:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7cddca9d35133c1590c6d94ff7d6f87f SHA-1: a640adafc80e8dab49645b9ac6ddbfbd0381fbe2 SHA-256: 10d5fdbe59d3ec15aeb6dbeb46772872f9e2e5b4f3c1c1115f1f95f22f071b36
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wb?keyword=zoom%20h4n%20multitrack%20recording%20tutorial PDF link annotation
    • http://bnl-jobs.com/44341125049u5l20.pdfIn PDF document text
    • http://tovelksa.website/800901946905l39n.pdfIn PDF document text
    • http://glossywp.online/85311510046lisu8.pdfIn PDF document text
    • https://cdn.sqhk.co/savadapo/7iehjiX/fomemodulilukoxoriminer.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/iQjjPic/61637380014.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/ihyuhd4/child_care_resource_center_pay.pdfIn PDF document text
    • http://hopecommunitynaz.com/bass_music_player_softwareck1mu.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/TdZhbdI/numodugofazoladesobufola.pdfIn PDF document text
    • http://kojovud.iblogger.org/tidosupafa.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/SXvqgie/53576123442.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/vonuxagupeduze/31063825831.pdfIn PDF document text
    • http://xinudigiwuwa.epizy.com/wozur.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/heart_piece_guide_minish_cap.pdfIn PDF document text
    • http://lidiwerefibe.rf.gd/ac_33_roland_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/fazegawirozunejisu.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/wasteland_2_director_s_cut_game_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/santa_cruz_county_affordable_housing_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/67476496468.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_off0000dfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD1 5284 bytes
SHA-256: 6fccfc78c2700187ef566e72af1d5bba122ce16f257a3658299786e7b6e98da6
font_01_sfnt_off0000f1a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A5 10784 bytes
SHA-256: 9a6728cff2333aac1e0dcf1a1ddf2aa25ceb4b035862475598e4192a64af7d44