Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed28ccb7a564a8b…

MALICIOUS

PDF

69.7 KB Created: 2021-01-25 12:10:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 49d62c61ae0a9b22a2e9fe29883ecce4 SHA-1: fb2e6dd7a469ac92ab44dd8b15758e3c43e5e9e0 SHA-256: 8ed28ccb7a564a8b1d6daef95eae3c65549efdc99ea2fbe777f2a8f3d08fa9b0
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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/aws?utm_term=lauderdale+lakes+wisconsin+fishing+report PDF link annotation
    • https://cdn.sqhk.co/sadirorig/bCp0fGj/bubbles_legend_of_zelda.pdfIn PDF document text
    • https://cdn.sqhk.co/silonifer/e3Djjjc/jumidufefikul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449424/normal_5ff3d4c1263bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448337/normal_5ffe0587cefb2.pdfIn PDF document text
    • https://cdn.sqhk.co/nutewakizi/jhigdDt/road_bike_gear_shifter_position.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374696/normal_6003b31181370.pdfIn PDF document text
    • http://gratoramaa.space/red_rocks_events_january_20206y0j4.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/idieqjg/99981749061.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378157/normal_5fd30117e4f1a.pdfIn PDF document text
    • https://cdn.sqhk.co/lezubenewago/hbig4k1/new_bollywood_songs_2020_list_download.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/kavalukato/cuddle_buddy_application_form_blank.pdfIn PDF document text
    • http://batogejupimole.rf.gd/91493031419.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/nba_2k19_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/shares_in_certificated_form_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/google_chrome_gratis_softonic.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_off0000d48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48B 5516 bytes
SHA-256: b5d5ecac75850514d81c6804345631b707058971931b7295f2ccffdd38765874
font_01_sfnt_off0000e762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE762 9980 bytes
SHA-256: 020f021ca143922293232e2e5bb195eedf4d3316ebd2581511d0270569609d6b