Malicious PDF — malware analysis report

Static analysis result for SHA-256 707b6e86dad21798…

MALICIOUS

PDF

48.5 KB Created: 2020-08-09 04:12:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57bf8a2d1e97718af672262c151aeb38 SHA-1: 3f79e7c1fd97b1b20194895694c3da7c53f976d4 SHA-256: 707b6e86dad21798259fac87ea30b72ebd8d801cba366f8de112327a7349bb7b
202 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of a link farm designed to appear as legitimate download pages. The primary redirector URL, 'https://ttraff.cc/pify?keyword=pdf+file+unlocker+apk', is flagged as malicious and likely serves as a lure for users seeking software. The presence of a 'download button' heuristic further supports the phishing pretext. While no scripts were explicitly extracted, the nature of the links and the ML classification suggest a malicious intent to redirect users to potentially harmful content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pdf+file+unlocker+apk In PDF document text
    • http://files.snowypeaksoap.com/uploads/1/3/2/3/132302973/a7512c13cdce8e.pdfIn PDF document text
    • http://files.hugohowls.com/uploads/1/3/1/8/131856200/zanuravekefanepox.pdfIn PDF document text
    • http://rimibema.amanda-winston.com/uploads/1/3/0/7/130776485/referorupav.pdfIn PDF document text
    • http://nanura.olympicclassictbirds.com/uploads/1/3/0/8/130874493/tobutiso.pdfIn PDF document text
    • http://www.opentle.orgIn 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/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7226/6150/files/lulijumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7811/3697/files/18147270688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/jebunubojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/gelenitifig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34803766861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2998/files/detajuzosuwukonubetimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3854/5819/files/vafikifinubiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9784/1063/files/curso_de_ingles_iniciante.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/7564104777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9240/6428/files/asymptotes_solved_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3301/0074/files/beethoven_appassionata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/26454142862.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://www.gnu.org/licenses/gpl.htmlIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006046.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6046 13112 bytes
SHA-256: 485290859e1ce86e8668c4f9c355bb696d19ab2a03d4818264352ca4985a9c19
font_00_sfnt_off00004fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FE1 4840 bytes
SHA-256: 5e8dad3a976be0a59037fc6bd1c4173afe47c16a8c3fa92fc3fbd26490ad9537
font_02_sfnt_off000084cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CF 9820 bytes
SHA-256: 558b981951db67ce8e34a5d3d82f7da3df5f118de40974216ac34d1c23f867c7
font_03_sfnt_off0000a677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA677 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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