Malicious PDF — malware analysis report

Static analysis result for SHA-256 353f0ed4cc9def41…

MALICIOUS

PDF

93.3 KB Created: 2020-08-21 02:10:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d1d1cf3271d8b2b6851ff7adde15e37 SHA-1: 0f502b90c71c3ddf54d04eae1a720bbd35bb7bfd SHA-256: 353f0ed4cc9def413cd184284c525a0ad00b8deef9e27c5607694cf805b16eb4
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same lure text as the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a link farm, likely to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=green+transformer+name+age+of+extinction In PDF document text
    • http://files.doitforthemems.com/uploads/1/3/1/3/131380596/jisixaxuka-pakagewopeguki-ruzisigewaget.pdfIn PDF document text
    • http://files.newyorkautoschool.com/uploads/1/3/1/8/131856713/nakegekidetamutemike.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/vegese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2439/1071/files/agnisakshi_serial_telugu_naa_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sedafasejizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/43339822893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/stardew_valley_seed_maker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/dovevuperopufuwoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7774/7097/files/chimusebo_by_afunika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/jubovolemelubivup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8123/0488/files/nedon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4836/1375/files/bipedal_walking_robot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/pesinigago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/77415315462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/63093485639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/call_blacklist_app_android.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 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118DE 5056 bytes
SHA-256: bc0e8005632ad7f285154d65e0d6b868bfe3f013446ff5eac4932f977dd6fbc1
font_01_sfnt_off000129fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129FA 14960 bytes
SHA-256: 4dc7fccdf4995fbfa195bcf99962c6a410e168c933a78af8e8ac612260d71ce1
font_02_sfnt_off000158e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158E4 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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