Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91d95acb4ebfd11…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 04:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b55df8a08ffe601966f0f728c92c671b SHA-1: 4ff28fb835d6d3f06fdb000eda548615cee1ed3e SHA-256: e91d95acb4ebfd11679f301eb4fb752b9a26c0cf18101410277c401a1828d7d2
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc), indicating a phishing or scam lure. The document body and heuristics suggest an attempt to trick users into clicking these links, likely leading to malicious content or further phishing attempts. The ML classifier strongly flagged this PDF as malicious.

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.
  • 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=appointed+person+lifting+operations+pdf In PDF document text
    • http://files.jambandpurist.com/uploads/1/3/1/8/131856365/76af5249.pdfIn PDF document text
    • http://files.fiddleonthefarm.com/uploads/1/3/1/4/131408100/5296344.pdfIn PDF document text
    • http://files.fluidfitperformancetraining.com/uploads/1/3/2/7/132741081/7022ec421ae.pdfIn PDF document text
    • http://files.franklinvolleyball.org/uploads/1/3/0/8/130815277/8813793.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/1/0433/0084/7781/files/34005199215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/kulidudonemijafoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/lalodifamuwubufatifez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/gejoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/megizinugag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/probability_and_statistics_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/gutogaramexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/metal_a_headbanger_s_journey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/zuzevugafewafepovivalux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pejodogidevetakuranuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/92408351232.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8D 4988 bytes
SHA-256: 335e0d03f2d178eb4c0383bc7d222d8aeb1a86a689eebbc76f9608b178985ca2
font_01_sfnt_off00007086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7086 10024 bytes
SHA-256: 69d7d272e78e815ffedb49f13ad73d2dbc4906087e22fddad6224c0e9f3b669d
font_02_sfnt_off000092c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378