Malicious PDF — malware analysis report

Static analysis result for SHA-256 969ad9e5225e8bc6…

MALICIOUS

PDF

70.5 KB Created: 2021-02-10 07:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 00eb12cf1955e70c5f98487715a507f5 SHA-1: 4a7a42792d0f8ba687ef61d5db72c8364ad0bfe5 SHA-256: 969ad9e5225e8bc619e358c44dc14df58a1141399ba66da6cc08c0b1fd1853b3
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/aws?utm_term=corner+bookcase+plans+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481058/normal_6004e19f43f06.pdfIn PDF document text
    • https://cdn.sqhk.co/xivorotil/cggksgc/how_to_play_wordplay_exercise_your_brain.pdfIn PDF document text
    • https://cdn.sqhk.co/pemoxeriko/egjjgZx/zozokuxakigorodukuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc90c6e61734.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388426/normal_600670e485f61.pdfIn PDF document text
    • https://cdn.sqhk.co/nukunudakiju/Xichd0E/23903775089.pdfIn PDF document text
    • http://reassurez-moi-fr.info/tumivipativosliy95.pdfIn PDF document text
    • http://masito.space/xarefawafotuludal5v94.pdfIn PDF document text
    • http://bewerab.22web.org/8638585948.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/gateme/darafakibuju.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/nexa_extra_bold_italic_font_free.pdfIn PDF document text
    • http://pinezininefos.epizy.com/chess_openings_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/acha_chalta_hu_ringtone_song.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/kinoxekuxutivi.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/12896781913.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_off0000d8ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AD 5256 bytes
SHA-256: a9e624418662118353cb4952ee04a703503597deee748fdcd4f754f6ee756eda
font_01_sfnt_off0000ea98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA98 10164 bytes
SHA-256: e166b102a2b832a85e1bfc19485cc68acf0a5659dbf4b06cd41ac245a45768af