Malicious PDF — malware analysis report

Static analysis result for SHA-256 488dba49b91ba0ee…

MALICIOUS

PDF

42.0 KB Created: 2020-08-09 13:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69a4c99f7444ca4f6cc9b4d14d315f52 SHA-1: 0bfcdc8df1842b26a8fd4fac6f3d0cdda03cbd8e SHA-256: 488dba49b91ba0ee4e345e9cad80d90e5a48e13250e4ef73d86e866545fdb88c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to suspicious or unknown domains, indicating a link farm designed to redirect users. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'Oklahoma state football schedule 2020 pdf' and mentions wkhtmltopdf, suggesting a lure to disguise the malicious link aggregation.

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.cc/pify?keyword=oklahoma+state+football+schedule+2020+pdf In PDF document text
    • http://niwesobe.kskitchen.net/uploads/1/3/1/4/131454012/07efe842c7.pdfIn PDF document text
    • http://files.sabatinomangini.com/uploads/1/3/0/8/130813489/ropalovi.pdfIn PDF document text
    • http://files.fhpsc.ca/uploads/1/3/0/7/130775916/8431359.pdfIn PDF document text
    • http://files.mariebrookephotography.com/uploads/1/3/1/3/131382590/domojiperajeso.pdfIn PDF document text
    • http://files.stella-theyellowsuitcase.com/uploads/1/3/0/7/130739713/xizazizod_kobogibikabi.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/1/0431/5031/1579/files/windows_server_2020_system_administrator_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0497/4488/files/adosphere_1_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1067/9203/files/admiralty_chart_catalogue_np131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8566/4166/files/section_17_of_cgst_act_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/funutenizojirozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31056735454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/63874341365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2855/3634/files/7235563099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/22332211912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5559/6198/files/kadudak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/piwuzegojisegufeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8852/8035/files/acca_f2_practice_and_revision_kit.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 5804 bytes
SHA-256: 54c0a47285edd9dc901c9fd7aaa4d0a132d1256ded81aa93bcd759bb3591b751
font_01_sfnt_off00007853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7853 10180 bytes
SHA-256: 108c8ec26b1285746dd1fbe4a49bbe8084f3481e9c71d8736444b3d4e372c1c0

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