Malicious PDF — malware analysis report

Static analysis result for SHA-256 422477eed67ec580…

MALICIOUS

PDF

47.1 KB Created: 2020-08-24 04:21:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fbff5ade3ab2446cf584e98e55bea7d SHA-1: 0aaad7eb1c7ee79ff2a94dd349290188638676a3 SHA-256: 422477eed67ec58097c5517392076a1facfff5f2044746cb89e8348171291a4b
170 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=camtasia+assets++free'. It also exhibits a PDF link farm, with numerous links pointing to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure for potentially malicious content. The combination of these factors indicates a phishing or redirection attack.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=camtasia+assets++free In PDF document text
    • http://sejumu.freebirdok.com/uploads/1/3/2/6/132682883/gonufiled_rivuko_gopazesugibaku_rinanefozenu.pdfIn PDF document text
    • http://files.chrissyandlee.com/uploads/1/3/0/8/130814515/2470298.pdfIn PDF document text
    • http://bowupunuj.rn-cpworld.com/uploads/1/3/1/0/131071164/15673.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/1/0431/1062/9532/files/mitumuribam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2286/7880/files/41913747942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/fadelov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/gaxetatasonudebofefaluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/soxanekaseterotaneke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2405/1358/files/luloxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/sony_dvp-_cx995v.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8341/3142/files/biology_chapter_wise_questions_for_neet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8322/5506/files/lunowoguve.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_off00007b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B05 4788 bytes
SHA-256: 7de7b9a6d3717ddbf138146447b88d55bde0aba7a407480ba5032d8b2771d4ee
font_01_sfnt_off00008b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B31 10628 bytes
SHA-256: 3f0f397dffb48fe2d7bc13b83e4266c0653fcaf8768424f499fbe473401b2344

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