Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ece5e3c1dab56d9…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 06:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 682a632846b8023fb6ffb78510b35b90 SHA-1: 028f3ce17881cf2e00570608ae37c32cd932b890 SHA-256: 9ece5e3c1dab56d93034a94a834eb30daae6e76594cc6f13e671f0de2c911d73
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a mass of external links, many of which are hosted on Shopify. One prominent link, disguised as a certificate template, redirects to `https://ttraff.com/pify?keyword=volunteer+certificate+of+appreciation+template`, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise.

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=volunteer+certificate+of+appreciation+template In PDF document text
    • http://files.iskyteam.com/uploads/1/3/1/3/131398084/sibelowuzane.pdfIn PDF document text
    • http://files.dirtbagcoffin.com/uploads/1/3/0/9/130969389/7641c40427ddd44.pdfIn PDF document text
    • http://files.janeshi.org/uploads/1/3/0/7/130776110/mafevasa_pirivifavo_powatuwugiw.pdfIn PDF document text
    • http://files.champagneandlinen.com/uploads/1/3/1/0/131071037/98d598a1.pdfIn PDF document text
    • http://files.prairiedusttrail.com/uploads/1/3/0/7/130776118/76620.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/1/0434/0583/6438/files/wevusas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/negiwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6240/9881/files/77530700240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/22719225087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/curso_completo_de_economia_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8054/8503/files/vejawotubasek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/funny_discord_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/nevusevapafumoperoduzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0385/3469/files/fexezovuwitisokolasaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/57388277962.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6660 4948 bytes
SHA-256: f772142fadde94257738de3d302b2f54b5c3fe9a993dc6374cf8e8a579847021
font_01_sfnt_off00007726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7726 10096 bytes
SHA-256: a60958c924869cad6d9fef965fb6265b6df5d7596d2c1a1a17ef3f2f92dd3655