Malicious PDF — malware analysis report

Static analysis result for SHA-256 641519a7ee3aef16…

MALICIOUS

PDF

53.1 KB Created: 2020-08-15 03:34:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 111e877f28568add61c1d7feb2dcd08c SHA-1: 18f3c4d5565b60ca177b6fdddad969185aab1ee9 SHA-256: 641519a7ee3aef163e7310af1eb6f60c8662b89d106118aaf22299e0376c07ec
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify and appear to be part of an SEO link farm. A critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/wb?keyword=stations%20of%20the%20cross%20catholic%20pdf, which is also present in the document body. This suggests a phishing or scam attempt, potentially leading to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/wb?keyword=stations%20of%20the%20cross%20catholic%20pdf In PDF document text
    • http://files.lulabellestyle.com/uploads/1/3/2/6/132681632/645d9215fa930.pdfIn PDF document text
    • http://files.luminoushealingtouch.com/uploads/1/3/1/4/131454771/7755939.pdfIn PDF document text
    • http://files.brokercontracting.com/uploads/1/3/1/0/131071137/niwolakap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/dulan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0174/6332/files/vuwavaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/gorikoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2764/5084/files/lalugadodufafolas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3287/files/tuwoxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2092/7644/files/92501016899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/53781188141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3076/4968/files/44029051316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6966/files/sasopaduviwaxafip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/principles_of_fraud_examination_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4007/0042/files/bivuwujipikoxojixasegizox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8433/9613/files/defujupuxeram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/invincibility_cheat_gta_5.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B6 5132 bytes
SHA-256: e80b20596433352df450338c2675503a795d77f4d4312aea562b7fed7a875d8d
font_01_sfnt_off0000960b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x960B 10144 bytes
SHA-256: 1965940f68f94f390ae8061b8ef340c33d139ad08eb40f29087b7ca78f44b670
font_02_sfnt_off0000b8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8CB 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34