Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bebcb2710ed69bc…

MALICIOUS

PDF

43.6 KB Created: 2020-07-29 19:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33024e46f0ace6228e6de6fb446fe97c SHA-1: 63582f7ead19e1be30aa997cfbdb299cf8125149 SHA-256: 6bebcb2710ed69bca4cd079946c7eb6bf5964d0f3570ad5c38f0503940b79dd9
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to potentially harmful sites. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure point towards a phishing or malware distribution lure.

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=pdf+prince2+foundation+exam In PDF document text
    • http://files.saharasistasols.com/uploads/1/3/2/3/132303353/5189898.pdfIn PDF document text
    • http://files.aakashsinghrathore.com/uploads/1/3/0/7/130740205/ab1717c1e72.pdfIn PDF document text
    • http://files.myped15.com/uploads/1/3/1/4/131437249/xaziwoner_fezomabazadis.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/1/0438/0445/9170/files/82241674809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/65632692036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/57467028896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/wefuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7439/6063/files/7099560603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/mabanovivik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37357510366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/71528449009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8080/1701/files/46856265981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2405/4429/files/riwubitefurozobuserumumur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5778/9593/files/bupevoloxavebifurerufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/wokanugekakuminitotukibu.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_off00006cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF4 5176 bytes
SHA-256: 68817a8af8dde39f16456255d191bffcb84adbc2c816ee10a1a4fb144fe4b829
font_01_sfnt_off00007e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E77 10236 bytes
SHA-256: b25063aa1406bf33698903c12a5ae51fec928fe6fb784d281c576cd4a741e114

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