Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f378f56fd7e7e84…

MALICIOUS

PDF

53.8 KB Created: 2020-08-30 02:52:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e8505654acce610a89c94884ae72b2e SHA-1: 0a53bb4eecd9f587f4ce2e88dc63b9b3fe95d24a SHA-256: 7f378f56fd7e7e8434a9bbc40f28c143524303389ef899663e00181666e7a521
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, including one that redirects to a URL designed to trick users into downloading a malicious executable, likely related to a game lure. The ML classifier strongly indicated maliciousness, and the presence of a redirector link to 'ttraff.me' further supports a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself facilitates the attack.

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.me/wix?keyword=minecraft+exe+google+drive In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0d2c8329fb094d4db01d7011dc740726.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1de3566b0fd0421b93de172b59c58feb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_b9842a2897bf4bdc9bb74fe7f8ce7dda.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3e01101c276c4def90c95f0ac247a265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6590/9143/files/alligation_and_mixture_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3927/6707/files/32766775116.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/accd1f_a9d04a635e8f4d3ba94e6f23925cc328.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0019bec7fe5d4706b2cf7941c50487ad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/31858054820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4414/1218/files/rutixopesofutajuselunosul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6558/1468/files/77070560697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/la_cimbali_m29_selectron_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/35386895806.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 1

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_off000094b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94B8 5144 bytes
SHA-256: 2d8c12bb0500ac5407020cf1363ba0a1b649d8fba4515d3f0bdb10768d41839b
font_01_sfnt_off0000a64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA64F 10668 bytes
SHA-256: f63da2793fb8ce3ba249f8ce629aca00081633629c39c79e41697def312cbc10

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