Malicious PDF — malware analysis report

Static analysis result for SHA-256 f49ebcb946f24554…

MALICIOUS

PDF

39.1 KB Created: 2020-11-06 03:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 5bba3f0744b1bd6538d20b2499f0c425 SHA-1: 19fd0b1fe4b425ce2f9fcc1525ca3ae7dc2b670b SHA-256: f49ebcb946f24554bdce33a4fde5216e511bf4657040941bdc79e9347d160388
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://traffset.ru/aws?keyword=sega+saturn+emulator+for+android+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370266/normal_5f88d8d232a8d.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/sodim-dajozigesozix-sojesumupusimow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380882/normal_5f9234850a594.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5f93a7f183a9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402294/normal_5fa23576ab459.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1046b277-72fd-406c-8421-5751a868a9f1/76049784898.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ab944ff-3978-4930-8b5e-1d3bb7f32ed6/tusafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/229bcf22-59a8-44c8-8d96-bc8797376fec/wunorabovufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c784717a-bef8-4c89-a248-b6878270424a/gepesuxukazovopeporine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a15d3a86-5ae6-4c7f-a122-b805406d2d41/unblocked_games_car_eats_car_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9409fbea-e4ba-4021-aa54-73b616769939/43313249751.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_off00005a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1F 5528 bytes
SHA-256: e2087ef748c9817c1ae5eb339f4c3b0e6b4a25699718f2304e240b11f986545d
font_01_sfnt_off00006cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD8 10196 bytes
SHA-256: 021c1c2c3626e26453f5fc5846fbd538ed28e4f8d8c986ae23d420f9de6abaf7