Malicious PDF — malware analysis report

Static analysis result for SHA-256 6244953b0e123eb7…

MALICIOUS

PDF

45.6 KB Created: 2020-10-25 07:54:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 94aa97a9534cca05b62a5ead1694d975 SHA-1: 34b8b26f128713ddb5d35161b1428ce0f729acd1 SHA-256: 6244953b0e123eb745754d67b7d13bb0d1a1d393074f5fa4218fa5ea83d91aab
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/wb?keyword=geocentric%20approach%20pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/piwanisaj/lolex.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/toefl_reading_comprehension_test.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/13202822848.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/85765480713.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a09173d-8756-4c4d-9655-18d52d41aed2/werusajunagogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b77f2ca9-2cee-498b-96f4-e888b23fd964/tusuvedalex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f684742-3595-4389-bbd6-8aaab5d2af88/87665107972.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fba1248-04d0-4460-8083-744c1774028d/valogusupisemejoruzaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6939/3046/files/52059685540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9212/2527/files/72420656061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3491/0103/files/wildlands_fallen_ghosts_trophy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5916/2521/files/13562206117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4870/4444/files/jejaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c942e308-37a0-461e-a0a5-0eaa449d0c31/43019115709.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04c54249-467c-4180-8155-6eb6c671ab51/classics_of_western_philosophy_8th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a46dd48-81bd-497a-826c-793e5287a3b4/palabras_homofonas_ejercicios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/670d5e1c-4bd1-4c5e-af8b-1878d6e75d13/toyota_hiace_alternator_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28c37048-1822-4410-b735-2f930ec51c89/razuten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6050/1921/files/fivoxajewipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5231/7853/files/19312382175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/english_to_farsi_phonetic.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAA 4852 bytes
SHA-256: 25b3a446d16802f5c7f69394e5a07ac7a3c5ed97d30d622ae1c6e079960f5351
font_01_sfnt_off00007b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B17 9360 bytes
SHA-256: 0921d195a98dc9e4904e04dea0e2dd5623f083498097c85c8b66201385094bff
font_02_sfnt_off00009aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AED 4324 bytes
SHA-256: 781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60