Malicious PDF — malware analysis report

Static analysis result for SHA-256 64686a1f099e62d5…

MALICIOUS

PDF

45.5 KB Created: 2020-07-24 10:48:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f509fd9cc871286353ce6cd82710416 SHA-1: bc99f8dff283e171db03a8773f008e7232435033 SHA-256: 64686a1f099e62d50ce028171db730111629de659c73d0769bf130c6de61c283
282 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1027 Obfuscated Files or Information T1553.005 Security Software Tampering

The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and instructions to disable security software. The presence of a 'download button' lure and a password-protected archive hint suggests a phishing or malware distribution attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific content beyond the metadata.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/pify?keyword=golden+grapher+13+crack In PDF document text
    • http://files.clintweiler.com/uploads/1/3/1/6/131606025/batalixo.pdfIn PDF document text
    • http://files.rafwestraynhamassociation.org/uploads/1/3/1/8/131859993/d45db42f6c81cfa.pdfIn PDF document text
    • http://files.ridgeclinicairliebeach.com/uploads/1/3/2/6/132681212/edb7cd78bf9be20.pdfIn PDF document text
    • http://files.mackymina.com/uploads/1/3/1/4/131453219/f02cbc67.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/1/0434/5636/4709/files/98716126425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/juwanisojin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/10953498244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/vukojonejoworotixot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/ganumotawami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5926/3141/files/xatowowosesifivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6385/2708/files/40704800764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/10268435863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/jewurilodemare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6352/5026/files/dikulevez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/90333336386.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_off000074b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 5128 bytes
SHA-256: 5a8b7a605d8b0000dc362d08dd34a6a76e1658c8a0ed14f1d05e4cfa519f1ef3
font_01_sfnt_off0000861c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861C 10308 bytes
SHA-256: 6f64490eb13e0e0ea8a0743716a0d72be51874c194dbbc708e6ec0a33078cfcf