Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f68e181c4bac59…

MALICIOUS

PDF

53.5 KB Created: 2020-08-22 03:21:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: beef7430b03d476f543a6a97781ce8b3 SHA-1: b41f91d422d115a9cd9933f95df12771c2ff11f3 SHA-256: d4f68e181c4bac5959513bc330a11115f71233b8a2610470c96c1376bd5b9a23
242 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a social engineering attempt to trick users into visiting harmful sites. The document body and heuristics suggest a lure for a browser extension or update, and the presence of a password-protected archive hint at a multi-stage attack. The primary malicious URL is ttraff.cc, which redirects based on keywords like 'antivirus free cnet'.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • 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=antivirus+free++cnet In PDF document text
    • http://files.metal-craft-supplies.com/uploads/1/3/0/9/130969597/tijibavugujeliwag.pdfIn PDF document text
    • http://files.lavendershop.org/uploads/1/3/1/4/131483138/sorisi_monone_jelux_xupivoweven.pdfIn PDF document text
    • http://files.conniehurst.com/uploads/1/3/1/0/131070309/jelawofulun-fedepamefenupej.pdfIn PDF document text
    • http://files.ptsdveteranswife.com/uploads/1/3/1/4/131407968/8701151.pdfIn PDF document text
    • http://files.healthgeography.org/uploads/1/3/0/7/130776158/3254967.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/1/0432/4186/5384/files/biwuxoguwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/bobilunekiraxuzos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1615/8359/files/xajerosafole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9844/7778/files/pregnancy_low_back_pain_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5345/files/is_besides_a_formal_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9768/files/mazosonopozamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/39653583922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1375/7339/files/letexoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/lovixigamabute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4658/4999/files/interview_questions_and_answers_for_government_jobs.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_off00009732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9732 4680 bytes
SHA-256: 77eb4cff9ce02687f3d63a96ba8c13864088c4f50fd35532954554e5b96fa1ae
font_01_sfnt_off0000a730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA730 9980 bytes
SHA-256: a48b7986c2eb805d2e8f58381da167fad4e3b294a57c055a0f9ea58b264c4382

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