Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf5bbf032945656…

MALICIOUS

PDF

45.3 KB Created: 2020-08-12 01:44:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2afbf19a4ea747fe01f2025bcc59733 SHA-1: 26e7f9e82700359818410a993da975c2e772b78d SHA-256: ccf5bbf032945656df83be5fc304d49d95534dd8309fc1658042860528969b6e
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, one of which is the primary IOC. The document body, though heavily obfuscated, contains the same malicious URL. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the PDF might be a precursor to downloading a password-protected archive, a common tactic to bypass gateway security.

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.
  • 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
  • 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=acertijos+de+logica+matematica+con+respuesta+pdf In PDF document text
    • http://jiweke.coda-pdx.org/uploads/1/3/0/7/130738568/20b95d53bb2fd.pdfIn PDF document text
    • http://files.katemarshallmaths.com/uploads/1/3/2/6/132682758/kagijobekofubeb-kiguzuteponix.pdfIn PDF document text
    • http://jugagizu.startingoverabuse.com/uploads/1/3/0/8/130814297/6aaf15dda9.pdfIn PDF document text
    • http://files.motivationalmowing.com/uploads/1/3/1/3/131384359/dubofidem_zusebudilov.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/1/0428/4504/4892/files/xamulizofovubifuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3341/6095/files/bureaucracy_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/document_to_converter_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6581/3666/files/97297124482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/99887778737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9708/7390/files/asce_7-_05.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9446/files/zetur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/gimp_user_manual_2._8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5584/8355/files/51188891830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/zizof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7415/files/jiwevanogabewotifo.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 5

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_off00006f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F68 5540 bytes
SHA-256: 46952bb2926d79e8e9d35dbfcaea78e365551813939a53b28fe98fc7343a83ec
font_01_sfnt_off00008224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8224 11048 bytes
SHA-256: 6f4181dc6ff610e22b5c2ee27a475cda1ac2f0d15057b8ee04cb7637d6a41d60

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