Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6a50c1f47da6f3…

MALICIOUS

PDF

52.0 KB Created: 2020-10-28 16:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: f454dd4eb1e3e3b50d3b92d7a26a36ae SHA-1: 5c10ba06962ddd460f124c99e1a824a34e06747f SHA-256: 2b6a50c1f47da6f3d93b51bd65682e7baf89483936313cf9c89e06b8435863fe
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/wb?keyword=automate%20the%20boring%20stuff%20with%20python%20filetype%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4406787/normal_5f948cd729529.pdfIn PDF document text
    • https://jemajodelevo.weebly.com/uploads/1/3/4/3/134394711/xikupenimolikusani.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/9714766.pdfIn PDF document text
    • https://gemefakopegixi.weebly.com/uploads/1/3/4/3/134309359/7296788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383452/normal_5f8ca994e9095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_5f96d1867952c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f917c733db17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379046/normal_5f964193246a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_5f9418672ccd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5f90a3f312737.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/6b7cbc659827e09.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/zirojopemup/gegetadesuresimolowugutow.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/99676345040.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/needless_casualties_of_war.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/3203948065.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/87709079591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed662e1a-a54e-40ac-8116-b071495e2458/sapne_sajan_ke_mp3_songs_free_downlo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd7bfbbd-f4ef-44d0-b7ca-e3543870fb6d/intelli_vent_white_rodgers_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/6th_grade_science_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f429af5c-ba40-4177-8a9c-33691bd51226/ds_emulator_hd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/249f3488-3c0b-4b96-9f3d-c5ac4299713a/mass_effect_3_cheat_console_mod.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_off00008787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8787 5776 bytes
SHA-256: 596752500e92950359132c9af4c5da9cd62c9256963f510a9d17deb026cde9cc
font_01_sfnt_off00009b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1A 11472 bytes
SHA-256: c48949daa3127d78d86a0325fc2ed863dc72e85018a5ac3da9e5ccb6150660b0