Malicious PDF — malware analysis report

Static analysis result for SHA-256 be91f0458f8878e3…

MALICIOUS

PDF

42.4 KB Created: 2020-07-28 19:42:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 476fc3b1879e9622cc564521c3751da9 SHA-1: ec7fb88ea584398386f613d30cc68569a4c86823 SHA-256: be91f0458f8878e3b98447161bb23d6afa37d98b33969cdd2223f4ca5c3ff30f
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'black sabbath font' and includes a call-to-action phrase. The primary IOC is the malicious redirector URL, which is likely used to funnel victims to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=black+sabbath+font In PDF document text
    • http://files.christiefencing.co.uk/uploads/1/3/0/7/130775441/vexexixeve_wexeruvodusek.pdfIn PDF document text
    • http://files.waunakeefeedtheneed.org/uploads/1/3/0/7/130776499/34f62a286e3.pdfIn PDF document text
    • http://files.mvcalvarybaptist.org/uploads/1/3/1/6/131606815/wifob-vunajilifa.pdfIn PDF document text
    • http://files.aloveleighcreation.ca/uploads/1/3/0/9/130969761/4518906.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/1/0431/2167/2356/files/7428425195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8584/0036/files/51476599538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/roteguloxeruxubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/nefugepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5672/6165/files/jinaxijunokubum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7244/6873/files/62679902692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7989/1099/files/47923049733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/87166942277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1084/files/vewobisalupolaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6870/0325/files/59813185841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0971/9965/files/vufikene.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 7

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_off00006950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6950 4748 bytes
SHA-256: 2acca5f7e669c0dc6c69d433296e62bc884a9282816dacda7bff96d2bc830c50
font_01_sfnt_off0000795d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795D 10412 bytes
SHA-256: 6fb2ecb491fe67232d01bd533e40e3914b65d73dce20005f8237995a79d321f0

Open this report in the interactive analyzer, or submit your own file for analysis.