Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0984dd0c452f002…

MALICIOUS

PDF

45.3 KB Created: 2020-11-06 14:24:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c1730b0dd61672543277836830b06b1c SHA-1: ef1cfb792b371d4d81952b7610793aa2b1e9a906 SHA-256: b0984dd0c452f0025fbb4e436c962a7ab58c1eb87b4541923620f09ea7cfbaa2
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/aws?keyword=aladdin+2019+full+movie+download+english In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389585/normal_5f958fb97e10c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422906/normal_5fa060ce0b702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_5f87dae92aa12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412762/normal_5f991a7444c64.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/befarekogol/nine_abdominopelvic_regions_and_organs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec8fea99-4490-4c30-a571-e14f152ac9cb/43956409900.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/rotate_and_roll_game_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d19e1f35-cb81-4c02-b4d7-92c267aa6433/wogadekujabed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/442a9261-7bb4-469b-a925-c7ee1f421985/michelin_star_restaurant_guide_los_angeles.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/vewiwep.pdfIn PDF document text
    • https://s3.amazonaws.com/xebareto/plain_dealer_obituaries_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/nursing_administration_scope_and_standards_of_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/38930029348.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/guide_du_routard_cambodge.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_off0000709a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709A 5848 bytes
SHA-256: 59822028b88371d85b8b9676d2628084b547792d652238b236ef3482ee1a9b35
font_01_sfnt_off0000847c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847C 10516 bytes
SHA-256: 95ac8bbe6da222d856a4e9c10d91098772c32b1b2b357c0539657c947e59974c