Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c0d1d64cb41c59…

MALICIOUS

PDF

43.7 KB Created: 2020-08-07 01:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 371b22ef75c87ac3bf7010c5eff5b0f2 SHA-1: c66ce888554b4e3ad97b00fd96c84f5a485d8542 SHA-256: 88c0d1d64cb41c5913f6c41ddfe55f304fe4e262f1e3c5a111cf3cf48f3771f7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is associated with malicious activity. The document body, though heavily obfuscated, contains the same redirector URL and references a 'business plan for a new restaurant pdf', suggesting a phishing or scam lure. The ML classifier strongly indicates maliciousness, and the presence of a link farm heuristic further supports the 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.
  • 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=business+plan+for+a+new+restaurant+pdf In PDF document text
    • http://files.99waysesl.com/uploads/1/3/0/7/130776821/65a58.pdfIn PDF document text
    • http://files.architecturalglass.org/uploads/1/3/1/8/131856068/bbc6fbfa33d2.pdfIn PDF document text
    • http://files.supportersofoperasingers.org/uploads/1/3/1/6/131636689/najazanemege_gibamopagov_notopeponevon.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/1/0432/4330/7175/files/xuzudatijazirenemofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7269/2122/files/libro_adonay_jorge_adoum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1549/6092/files/38369050011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/aditya_hrudayam_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9130/4343/files/939056309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/adobe_acrobat_editor_latest_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/71332892122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/90017482143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/how_is_passer_rating_calculated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8640/5022/files/72404102606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5838/8374/files/renuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/womalifixotojurup.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 4

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_off00006cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF6 5176 bytes
SHA-256: 13a223e4ca4bbaa956fbe5873dc72b8942a0fe8e9a97bb5305d939bfb533f360
font_01_sfnt_off00007eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB7 10144 bytes
SHA-256: 47d71da46f294fad4eb3b8206a62781dd074df77a6bba0b3e078ab6d2131deb3

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