Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b6d3771e8dfa23…

MALICIOUS

PDF

58.8 KB Created: 2020-10-29 12:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-03
MD5: 834502f372f4d9b87b87f3f98ff29252 SHA-1: 49931f38e3e0d5edcd246e000ccc862425b47542 SHA-256: 22b6d3771e8dfa23c7cb12483966a93c7f3237e23faa78e53f186941af545e99
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://ttraff.link/123?keyword=find+helgi+after+dark+can%2527t+activate+coffin In PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/puxup_palufubajel_pinubov_mixepojew.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/bsa_medical_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/67231633052.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/54506011052.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/jewelifetis.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/ingold_the_temporality_of_landscape.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/barron_s_toeic.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/91423002547.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/ohio_sales_and_use_tax_blanket_exemption_certificate.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/abirami_anthathi_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/english_aptitude_tests.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/79485037553.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/4de9d49667.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/network_security_definition.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/1/0439/4788/4699/files/degitusoredigixasoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aad9c2da-57ce-4630-ae6c-a3881c9a4e02/korelasyon_katsaysnn_yorumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cddffb86-5b33-4b60-a1fb-b31a23e519b2/hlio_creder_instalaes_hidrulicas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9216df0-7823-4e9e-a558-ada40da21c48/louisiana_birth_certificate_document_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5552/9640/files/video_editing_apps_for_android_apk.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D7E 5216 bytes
SHA-256: 7e38a081a6452e4aebec4a6c1f63276dbf94d1faf2b74a19003523da9aff7cfe
font_01_sfnt_off00009f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F52 12256 bytes
SHA-256: 645bbbc3b62d36f1cc19623ad8800ef75df4f3ddcca9a38bfcff1cc0d6235f1c
font_02_sfnt_off0000c6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6CB 16060 bytes
SHA-256: 1957429f870e3021b6bba02e9571c572e3efb2afeeaf289904279bda08619914