Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e2f6e4175f7eea…

MALICIOUS

PDF

73.0 KB Created: 2020-08-02 17:18:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab3ab82e49022b86d2583f6705645b73 SHA-1: f03340878c976dd0212968898ad2a02011da7498 SHA-256: 65e2f6e4175f7eeac4c010a4e34d6cb7ba347d80f86d13fe9e1b45d72f059c89
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely as a lure for phishing or malware distribution. The ML classifier strongly supports maliciousness. The embedded URLs, particularly the one pointing to 'ttraff.cc', are indicative of a malicious redirector chain. While no scripts were explicitly extracted, the PDF structure and link farm suggest an attempt to exploit users through deceptive content, likely leading to a second-stage download.

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=let+the+right+one+in+torrent In PDF document text
    • http://files.harnesslead.com/uploads/1/3/0/7/130740044/22a95a7fb15f0.pdfIn PDF document text
    • http://files.someoneelsemovie.com/uploads/1/3/1/3/131383377/9d757af73d0277e.pdfIn PDF document text
    • http://files.shannaforpa.org/uploads/1/3/2/6/132681824/a0d91.pdfIn PDF document text
    • http://files.amomentintimeartwork.com/uploads/1/3/1/4/131407698/1423294.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/1/0432/0811/4340/files/vadivajafemipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/oxford_discover_5_workbook_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/crane_operator_test_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/26980179922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/lanatojumofopasuzed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2282/8198/files/64803904305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/zanepimevolirewukavabujak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7962/3071/files/22317153769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8295/7478/files/josejiwamar.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 8

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_off0000e3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BB 4468 bytes
SHA-256: 88cb0f190d0f6cd1b5ee69b6e59d30c25fd84ff49409657872e88c0fc4d307f9
font_01_sfnt_off0000f2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E9 10752 bytes
SHA-256: 260eb40c41978479670a73fa9a5e75231b5f243e523c9a86043efcc04f23e0f3

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