Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce44d6532c88422…

MALICIOUS

PDF

56.9 KB Created: 2020-07-30 04:10:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a97d88e4d2525993bc1c5ef394e9e5de SHA-1: 3424e072c0f5a1e5ee3771c022b1abc66ed10490 SHA-256: cce44d6532c88422307923f8031df6ebf9a3dab157803c7b790cb1e8efc70035
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'Guia ceneval 2020 acuerdo 286 gratis pdf', suggesting a lure to entice users to click the malicious link. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=guia+ceneval+2020+acuerdo+286+gratis+pdf In PDF document text
    • http://files.sanchezartgallery.com/uploads/1/3/2/8/132814272/linenijasobesolebane.pdfIn PDF document text
    • http://files.upandovered.com/uploads/1/3/0/9/130969683/dijukabirolexox.pdfIn PDF document text
    • http://files.wrestlingjerusalem.com/uploads/1/3/0/7/130740180/rumowiwi.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/1/0432/2977/3981/files/beluxizawatek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5382/files/95112133623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/50880741643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/45475406379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5731/4983/files/94957979675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9289/3095/files/20304971092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/58345986264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/91107007728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/wetovanaboda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/wufifekemiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/64668244218.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_off00008e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E11 5916 bytes
SHA-256: 3f89100cd6d67c2378b840ce5f9f508363f63f81593b36e804ebcd0fb0e11c91
font_01_sfnt_off0000a245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA245 16508 bytes
SHA-256: ba4ecc71301c5b00809cd64b5b2dc26d8a47cf951008c904819ab9a55f954792

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