Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1ddbffeb3f1b80…

MALICIOUS

PDF

67.1 KB Created: 2021-01-07 04:12:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: f1fd8b34c4c5d7ea5827aa943a3e6b51 SHA-1: da299719a155b8f489a143d0ab3ec77800313b6b SHA-256: 5e1ddbffeb3f1b80a81a6b966088770eba2d70e22e23f072a69825ba6b3a5447
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://cctraff.ru/wb?keyword=kohls%20online%20sales%20revenue In PDF document text
    • https://mosevulex.weebly.com/uploads/1/3/4/8/134860143/4969252.pdfIn PDF document text
    • https://mogewojelepa.weebly.com/uploads/1/3/4/6/134681452/duxezasuma-zixinu-kigoz.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/hcgfehh/3d_printed_ping_pong_table.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378613/normal_5f9a65fd15c83.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/abstract_3d_wallpaper_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cc0b.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cc0b.bin)
    • https://uploads.strikinglycdn.com/files/60d6a66a-6441-4a25-b795-158eebe83636/redudimufunogigurusej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6070b351-7ab0-4fe1-ad70-f06d8e9da054/stickman_dismounting_game_mod_apk_2._2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0138b3a9-d967-4933-9804-27ef71f58cc0/badejejerim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af1cc2bd-13ea-4ba3-9e44-44b9cbd99651/irish_coastal_rowing_championships_2019_live_stream.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b94cd0d-1a50-4f10-bc04-9c2320225d92/super_scourge_the_hedgehog_theme.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 extracted file (font_00_sfnt_off0000cc0b.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0B 4804 bytes
SHA-256: 1fba66d007b55d91a22e1730013e87acdac7803b101ba1fb3ad8bb7ad7e1bb15
font_01_sfnt_off0000dc5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5F 10400 bytes
SHA-256: 57274339e8801f9789ec567b01daf72f32c979554cab538b92af998c3d9329e9