Malicious PDF — malware analysis report

Static analysis result for SHA-256 aca9776cf2667af9…

MALICIOUS

PDF

38.6 KB Created: 2020-07-27 12:32:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23f9dafded54d850b3d616dced2af408 SHA-1: 2c85a9357bd74439926258218e238494069dff2d SHA-256: aca9776cf2667af9a216002750cc4e452d9248ae309800472af7837a185270a6
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One of the primary links, 'https://ttraff.cc/pify?keyword=child%2527+s+play+3+full+movie++720p', is flagged as malicious. The document body, though heavily obfuscated, appears to contain text related to movie titles, likely as a lure. The ML classifier also strongly indicated maliciousness.

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=child%2527+s+play+3+full+movie++720p In PDF document text
    • http://files.christinejohnsonartist.com/uploads/1/3/1/4/131411539/wobiteferaj.pdfIn PDF document text
    • http://files.scottishsocietyofplaywrights.co.uk/uploads/1/3/1/3/131379301/f6f8505435dd80.pdfIn PDF document text
    • http://files.condorcommunitycentre.com/uploads/1/3/1/6/131636972/1327260.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/1/0429/2096/8358/files/24392398153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/vofarubuwozofitenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7473/9607/files/67240758883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/97654809276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/66431978345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/31250752494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/laziximanumoxulixomama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/nakuvifemusi.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 2

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_off000057a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A3 5620 bytes
SHA-256: 49e1735b0234bec5cde21332fbd24f9a1bec47927c71b62cea9ff52a0ee92fb9
font_01_sfnt_off00006ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE4 10068 bytes
SHA-256: 4d49f30958aaa064bdebc996016fa3f24866b5a54696172b3e0714ad58619f58

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