Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cef03b2424bc2eb…

MALICIOUS

PDF

84.1 KB Created: 2020-08-14 02:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37645cd99738ac6cfef3e38090bb45c7 SHA-1: a6442afd7c93ce5a0e558f26316ec6d9033062f6 SHA-256: 6cef03b2424bc2eb06dcb5a27d55f674430aa50f6b03343290349641527ee3de
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a reference to the same malicious URL, suggesting an attempt to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=kinesics+pdf+free In PDF document text
    • http://gamotiziz.vadoseorchid.com/uploads/1/3/1/3/131398091/velojavazu.pdfIn PDF document text
    • http://files.adiyadoni.com/uploads/1/3/1/4/131437308/86302.pdfIn PDF document text
    • http://files.melsellsparadise.com/uploads/1/3/0/7/130740138/2142499.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/1/0430/1769/9477/files/pizemosizegusuxesanorubij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/32702257271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/6782264717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/95152732414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1482/7677/files/32644751728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6070/6971/files/15021823248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/gomasufudotiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2257/3990/files/weronow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9904/files/36499078158.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_off0001109e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1109E 4876 bytes
SHA-256: 5554c703f7f9b7eafad03f248678f452f894d0c5c2bbfc44b6c0ca38e5cc1658
font_01_sfnt_off0001214a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1214A 10112 bytes
SHA-256: 6d1aca89b35e6b48ae1850f2c3fa7d6e0de90c488634296b6c75d4c227564317

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