Malicious PDF — malware analysis report

Static analysis result for SHA-256 efb732b584b19e7d…

MALICIOUS

PDF

215.0 KB Created: 2020-08-02 00:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01e859eebe92f7b11abd64f6e474d928 SHA-1: aad0e390e436b60e0d09b6a713f7b6746eeb236e SHA-256: efb732b584b19e7d677b6674d5b3d2638bb2ded77bacfa389fd48550cca6c71a
134 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.cc/pify?keyword=ddr+extreme+song+list' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'DDR extreme song list', suggesting a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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.
  • 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=ddr+extreme+song+list In PDF document text
    • http://files.the-therapy-centre.com/uploads/1/3/0/7/130739060/birubuwururabila.pdfIn PDF document text
    • http://files.indianaturtlecare.com/uploads/1/3/0/7/130740242/3306832.pdfIn PDF document text
    • http://files.nikkiwoolfolk.com/uploads/1/3/1/4/131406390/551eea4e104d7.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/1/0429/2627/6775/files/22304563068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2625/0917/files/icecream_split.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/29081730184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/esl_podcast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/tetabofoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/dadugozoverulekikawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/nipupixinusupokebovopaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/dujumapiforuvabipiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/6135145376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7861/4168/files/50928057648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/36364613195.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002382b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2382B 59728 bytes
SHA-256: 7a3430904500cd5bf36c80e7709e5b863ac62d2136b91acf39caaaaa0ce6db42
font_01_sfnt_off0002ec12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC12 5000 bytes
SHA-256: d59290c4df1f6aff674513f3e552928609963c43a46277c225aa5a0401bbf89c
font_02_sfnt_off0002fd0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD0A 18640 bytes
SHA-256: 094dfa3f60e6134f9c39bd4e6d270205aa56d5f558f927cef1a919e8e5c23c80
font_03_sfnt_off00033655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33655 16596 bytes
SHA-256: 8acb8f4d782dde3502a50df690757b595acf547ea1958f6b69fda3577bb45a1b

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