Malicious PDF — malware analysis report

Static analysis result for SHA-256 1393576a9daee4f6…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 19:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3063c8067d7871b6b0797194845db172 SHA-1: 3f661426f1a9b4e4055d74462d1d1c3ba1014e1e SHA-256: 1393576a9daee4f6488d7fde28160c2b89141c440b0fe2c50ad3452a5516b7d5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to a redirector service. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=feelings+esl+worksheets', which is flagged as a malicious redirector. This suggests the document is designed to trick users into visiting malicious infrastructure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=feelings+esl+worksheets In PDF document text
    • http://felobed.attheranch.org/uploads/1/3/1/4/131453416/sufojowaw.pdfIn PDF document text
    • http://files.healingandawakening.com/uploads/1/3/2/6/132683088/fazuvilinuvufafumo.pdfIn PDF document text
    • http://files.inlandmetalcrafts.com/uploads/1/3/0/9/130969305/cf5ba51dd.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/1/0428/0942/6079/files/77678857192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/cours_sur_les_asymptotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/25993540778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3203/files/api_key_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6878/3768/files/36499510696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/bowugukoxolejugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/86707380388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1118/6588/files/convert_to_word_mac_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/grudem_systematic_theology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/gezapuxujomizotapifiziz.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 3

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_off0000690b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690B 4848 bytes
SHA-256: 113f131395a1794bbc69a8483f577aacf47b8a3bfe3dd355799a6146cd398546
font_01_sfnt_off0000799f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799F 10404 bytes
SHA-256: a3ce430b1a78c0139c19d23f323a9f216633d5ba29126ad9f575229849ffea79

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