Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7ac00853de5c29…

MALICIOUS

PDF

63.9 KB Created: 2020-08-21 02:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78ce8f49bb1cf7a48f4bd4781e8e6f32 SHA-1: 7478afe27a7c1f1bebf8255be28d2f673ce9af7c SHA-256: ff7ac00853de5c2992d1c751cc1e44842db160bf2a4971f10ea4322619e551fe
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=pcv+mcv+mch+mchc+rdw+full+form'. The document body, though heavily obfuscated, appears to contain the same URL and text related to medical terms, suggesting a lure to a malicious site. The file also contains a large number of embedded links, many of which point to Shopify domains, indicating a link farm strategy.

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=pcv+mcv+mch+mchc+rdw+full+form In PDF document text
    • http://files.knightsautowash.com/uploads/1/3/0/7/130776386/8500239.pdfIn PDF document text
    • http://files.ecocaregreen.com/uploads/1/3/1/3/131384468/pavefofat.pdfIn PDF document text
    • http://zuxumomup.diplomainprofessionalstudies.com/uploads/1/3/2/6/132680981/zoleve.pdfIn PDF document text
    • http://files.strangeisstandard.com/uploads/1/3/1/0/131070459/3264618.pdfIn PDF document text
    • http://sifafoz.heartstonehavenmassage.com/uploads/1/3/2/7/132710621/429269.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/1/0434/3624/5144/files/84826411213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/29570669563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/rolinererepobod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/69126012952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9303/1080/files/foolproof_answers_module_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1912/4382/files/28486711230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/zetunejobisobozubumixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/besun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/zumodasekekobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/nedonarazuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/nubenefibisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3095/files/cooks_essentials_pressure_cooker_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/wetugigu.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_off0000bb2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB2A 5024 bytes
SHA-256: 84a5296c40d954a7f944012cb3b2fcb540a9ef3ccc7c55b8a7a19d84baea3ef8
font_01_sfnt_off0000cc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC26 11768 bytes
SHA-256: a0b5cf3ac47d264ce579493f9d6e91a317380a2bff961868c1993e3de60991cd

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