Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f95dd53dd238c7b…

MALICIOUS

PDF

45.3 KB Created: 2020-07-25 18:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 110ee5937dfa6f698083b146b459f18e SHA-1: 77a477b217c0960794e85b81de0577e3baf638dd SHA-256: 6f95dd53dd238c7b8071d2c04d3bfbd5968ca460f32299f1abecd90f87bd91ba
162 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains references to 'Butterfly effect video' and application metadata, suggesting a lure. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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.
  • 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.com/pify?keyword=butterfly+effect++video In PDF document text
    • http://files.vintex64.com/uploads/1/3/1/4/131406714/1811960.pdfIn PDF document text
    • http://files.gregheckmann.com/uploads/1/3/0/7/130776142/ponun_puzegani_bopakixokaja.pdfIn PDF document text
    • http://files.caterpillarspirit.com/uploads/1/3/0/7/130775897/kiloxuserogen.pdfIn PDF document text
    • http://files.fairwaycommunity.com/uploads/1/3/1/4/131409884/mizezusejenuxodaxol.pdfIn PDF document text
    • http://files.cocrimeanalysis.org/uploads/1/3/0/8/130874437/0ff238c6a.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/1/0433/0687/7080/files/basugogigarerebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/narijejilelejusugokonowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/6685031213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7884/files/dawozitoxawerezanavetoxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vebamuwonodivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/fovodor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/pogafopufetedik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62386903812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/xirutitapevesiwopegigub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2111/files/30426139042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/zokifo.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_off00007504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7504 4612 bytes
SHA-256: 457d4676f9f705407dfbd727f9be70d9f96bf5c78c877eeab0bd8839ea1af9db
font_01_sfnt_off000084d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D9 10308 bytes
SHA-256: f63909edde625632bd8052d1cb7e4bf2586d8373b8da14d8106280c8168eff21

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