Malicious PDF — malware analysis report

Static analysis result for SHA-256 35004fc93951548f…

MALICIOUS

PDF

47.0 KB Created: 2020-07-31 16:40:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b167f539708eeb6865b77cc351ae914 SHA-1: f7401d0dddc9109594494469163e4a20e678d190 SHA-256: 35004fc93951548f64ead1a2aad0e35f7e72a2347ef43d30cf2e9886fdddc207
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=fire+by+kristin+cashore+pdf`. This URL is embedded within the document body, suggesting a social engineering lure. The PDF also contains a large number of external links, many hosted on `cdn.shopify.com`, indicating a link farm for SEO manipulation or distribution. The primary malicious URL is the most critical IOC.

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=fire+by+kristin+cashore+pdf In PDF document text
    • http://files.section27alliance.com/uploads/1/3/0/9/130969480/xemax.pdfIn PDF document text
    • http://files.shopelizabethann.com/uploads/1/3/0/7/130776341/e2e41.pdfIn PDF document text
    • http://files.regenbiopharmainc.com/uploads/1/3/1/3/131398360/kizorasapesavu-pegurepijejano-rigut.pdfIn PDF document text
    • http://files.portchestereyecare.com/uploads/1/3/1/4/131406442/5394a.pdfIn PDF document text
    • http://files.deft-touch.com/uploads/1/3/0/8/130814676/kozofumo-zavoridirar.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/1/0427/8406/3654/files/rululipapilitagil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/63375668089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/53103211926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/luromu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0265/7957/files/javajetazonuxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/51374790035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7434/5365/files/zaxuretoramirerofadij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3685/8773/files/resujirajujumadetume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/73503394932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/15470333453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/xijofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6854/files/ponuzedokumawukekar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/98199852544.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
🗂 Part of campaign: regenbiopharmainc.com 3 samples

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_off00007a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A83 5472 bytes
SHA-256: fbf41e70e6696cd8199069af4c1e4b261aa871797a1b39eb10b2569178bc8832
font_01_sfnt_off00008d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D22 9828 bytes
SHA-256: 50832767763e0a4e7eaede613c2787f0fcd307cfc8584fd8a298cccebe0fd226

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