Malicious PDF — malware analysis report

Static analysis result for SHA-256 66dbc69a1c604b6a…

MALICIOUS

PDF

34.4 KB Created: 2020-08-18 21:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57960cde0c0efc2a453a40e7c5887d32 SHA-1: 0dedfbcbf3fc412ceca996e0c332a203a02b6b92 SHA-256: 66dbc69a1c604b6a58e2d2f4bb328ad6e73da8280d123380c6d5be6b2b715683
234 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=cooking+academy+2+full'. This redirector likely leads to a phishing or malware download page, disguised as a free resource. The presence of a password-protected archive lure suggests an attempt to bypass gateway scanning, further indicating malicious intent.

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=cooking+academy+2+full In PDF document text
    • http://files.hungerandthirsttheatre.com/uploads/1/3/1/0/131070450/vifudiduwe_rajomexiva.pdfIn PDF document text
    • http://files.miehayashimusic.com/uploads/1/3/1/1/131163959/a0e895e834747e.pdfIn PDF document text
    • http://files.justdupree.com/uploads/1/3/1/3/131398292/luporojupuvinux_badunisawumetaz_fozume.pdfIn PDF document text
    • http://files.lakeviewtherapygroup.com/uploads/1/3/1/3/131378923/limupuvagukix.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/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/maths_addition_worksheets_year_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/10434212430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/abas_ii_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6078/8390/files/36203507133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/makebegojixudizubeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5053/9940/files/american_streets_address.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2261/3669/files/1524084323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/5843942040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/structural_analysis_9th_edition_solutions_manual.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_off000048dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DD 5268 bytes
SHA-256: 593335a63b5d5fb8ed8c6cbf5325324632acb1c3a779dd86f63633b80fd11e44
font_01_sfnt_off00005aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACA 10052 bytes
SHA-256: 0b0c0d082b19d65a313e93b6d1db17375d242474aba2daa6eec9029ce89ea948

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