Malicious PDF — malware analysis report

Static analysis result for SHA-256 6244031ab2572edd…

MALICIOUS

PDF

39.3 KB Created: 2020-11-01 08:58:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 78e3bcc0cc2c5933dad1c669bf8af4b9 SHA-1: 6409817573370dfcf2e6ef01ba17872f6bd76cb2 SHA-256: 6244031ab2572edd0913b4ea5f241b4ba8e3d484d0c864af6ddd1036e8a3bd3f
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://gettraff.ru/123?keyword=oyun+indirme+siteleri+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368488/normal_5f98835e501ac.pdfIn PDF document text
    • https://kozezivu.weebly.com/uploads/1/3/4/4/134444222/vofulupi_kotojuba_golugibur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386594/normal_5f9283bd64e3a.pdfIn PDF document text
    • https://dawugagulinejud.weebly.com/uploads/1/3/4/3/134368664/worazix_jadodum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383801/normal_5f905d89287f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/3432/8219/files/35246280244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8177/5287/files/best_games_for_android_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9946/2078/files/one_fine_day_nonny_hogrogian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/5290/5626/files/34193098168.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/detailed_lesson_plan_in_english_grade_10.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_off00005a99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A99 5100 bytes
SHA-256: 0267ba3f6c24cefda51242115efe3eb2380b3584061ad306ae21bc014fb20ba9
font_01_sfnt_off00006bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDB 11108 bytes
SHA-256: 9b8f8a405a19ec74db7c9dc72de15692489f44667546bac18129c040b19c9a5f