Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bfe77c3a64365bf…

MALICIOUS

PDF

42.5 KB Created: 2020-08-02 15:25:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1eb5ea8e6394357d50e665fde1f28c6 SHA-1: fbfdc3ab9ddcbec737e2ba0a414bbe826be9de1e SHA-256: 0bfe77c3a64365bf73acb23b56c02f7275c5b69b2038e8211baf172a06d19e5f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=rooster+lyrics+meaning`, which is flagged as malicious. The document body, though heavily obfuscated, contains this URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content.

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=rooster+lyrics+meaning In PDF document text
    • http://files.samanthamesserartist.com/uploads/1/3/1/8/131856191/7de11b9.pdfIn PDF document text
    • http://files.perleysmarinarepair.com/uploads/1/3/2/7/132740730/jupebafaza.pdfIn PDF document text
    • http://files.wlfoundation.net/uploads/1/3/0/9/130969974/limazed-mojevo-sinomajajatib-gosigug.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/1/0431/2226/2178/files/63476585339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3058/5239/files/89785647485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9675/1774/files/97655613242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/78226125907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/jerejapimetojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7706/5121/files/88535696889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/minecraft_pe_0._11._1_seeds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/cross_out_words_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8406/9526/files/70328134593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8511/0175/files/41628330048.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_off000069ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BA 5228 bytes
SHA-256: 00d90642513f84783cade86d12d555ebd7f4e0c7e550a7273282b142827a2b6b
font_01_sfnt_off00007b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7B 10076 bytes
SHA-256: b7d7f0d8c311210d9369d950e29ac423e8029608142c11be1047abcc02ebe0f1

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