Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e24e96769dc4b3…

MALICIOUS

PDF

49.5 KB Created: 2020-07-31 15:13:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3766482e4eeecb8ce4ac9e196baf036c SHA-1: 2dc5c0b5ce639f44de4492625e2fb5141b87b19e SHA-256: d7e24e96769dc4b3fd15097bd1049315dc2c13af98d2e9bb0ef48e01aaf13023
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic firing for a link to a known malicious redirector at 'ttraff.com'. Additionally, another critical heuristic identified a link farm within the PDF, suggesting a coordinated effort to distribute malicious content. The ML classifier strongly supported the malicious verdict. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its intended lure.

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=osrs+icthlarin%2527+s+little+helper In PDF document text
    • http://files.masslibaz.org/uploads/1/3/1/4/131454316/e0c42.pdfIn PDF document text
    • http://files.enterhisgatescamp.com/uploads/1/3/0/7/130740255/zujef.pdfIn PDF document text
    • http://files.johnkenower.com/uploads/1/3/2/6/132681698/bebikepelilufotifob.pdfIn PDF document text
    • http://files.elkcreekbaptist.com/uploads/1/3/1/4/131484029/8705695.pdfIn PDF document text
    • http://files.annagroves.com/uploads/1/3/1/8/131856545/xuvub-vigad-bexozalekaforad.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/1/0434/7022/5574/files/lebafuwegokolido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/82861144818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6764/5852/files/73716759102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3851/5095/files/38451192068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/5304397897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3467/2285/files/dowuxow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/daxisopijanolubuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/rapirodokalewulimaxejol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/32219670124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/retesubef.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 7

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_off000085a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A4 4760 bytes
SHA-256: 3e1a0f0f1283b5540a1c087b329ea5ca05bc5f43700e2bad912ac016e80510b6
font_01_sfnt_off000095c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C0 10336 bytes
SHA-256: f6af450093294587fad957f2440432963169839729955fd1d2434ee4e06358ba

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