Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcebc87d0dc9e38c…

MALICIOUS

PDF

63.2 KB Created: 2020-11-06 14:23:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: cddc8939ed8ec9a8038cd1e53cfb28c3 SHA-1: 192b3eefd8559fdd21dd8d6f40c11ab23f3db47d SHA-256: fcebc87d0dc9e38c00ff3b5a06d423a93a2391a025dcf68dd4c9ca17abb32ba9
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://trafffi.ru/aws?keyword=owsley+county+ky+pva PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369327/normal_5fa4b26bbb198.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5fa09daa5abb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f8761fb35a15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f89e4d9a173c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369506/normal_5f8bcb3f6b1e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413226/normal_5fa0d1dbccde9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410717/normal_5f9e6f29ae254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372723/normal_5f939b564cf03.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/kosipefojaw/tozofi.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/wii_u_stand_vertical.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9622a81f-a400-43f5-b171-8ce85c89866b/super_mario_sunshine_60fps_ar_code.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/vuxosumunirizimog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fc46ba1-7d0c-466d-9afb-e6cf1ec12b11/xutoginatarukovil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/978fc7d7-689d-4309-8c9f-97f71d538619/28710624470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/413f5d86-0a29-4a8b-a041-01a6d5cb9ee9/31205611955.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_off0000ab80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB80 5176 bytes
SHA-256: f5e7549ccc04306f21c51083a2991b365db6108a5703adb293b0677de0ec2384
font_01_sfnt_off0000bd52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD52 16468 bytes
SHA-256: 735505ebf6c7d5c5b465b3315496e85e46863cc8966f94cfa854823d1dcbdba2