Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e38dd2c6571a62…

MALICIOUS

PDF

51.9 KB Created: 2020-10-10 18:00:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 23592cc6296d26cc0d84e3edc22816df SHA-1: a4ef0726c95252baad47fe72d4d8fb8c0b831401 SHA-256: d3e38dd2c6571a6285d9aaca3033dd0a6066cbb6a42d3eed54457cd3f530d280
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ggtraff.ru/strik?keyword=for+honor+season+5 In 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/cbda03ea-6feb-475c-8efb-a187dc7585a9/sudewaponugutawabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f5686f4-24c3-4442-9355-b079cf3c4824/69320495904.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cdd8cea-7070-4bd7-9ec4-ff51dc563d09/10752436139.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2593e53c-fdee-4301-bf86-53aa6915663b/97584108623.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5156a202-c688-409a-93f8-c1155ef8fa42/belufasudaxebama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/best_friend_ringtone_mp3_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0963/6512/files/dubesomazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5167/4531/files/pumax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2379/7911/files/texas_studies_weekly_vol_21_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6176/4245/files/pokemon_shuffle_mod_apk_1.13.0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7937/1414/files/time_warner_cable_guide_orange_county_ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/art_deco_dining_table_and_chairs_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4079/5545/files/foster_road_dog_park_iowa_city.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/73500128558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6153/3089/files/on_my_behalf_or_on_behalf_of_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/zajisuxoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8861/8677/files/divi_testimonial_slider_module.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_off00008f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3D 4820 bytes
SHA-256: dfd08f9d89bf7a817aa05018378cd11d27085b2f85ea604d183ad21abd966520
font_01_sfnt_off00009f9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9B 10208 bytes
SHA-256: bb9b8909b8975939a7edf6f7a1859f177e2db1492c24af52e82714d2dfae00fd

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