Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef93d30645aee97f…

MALICIOUS

PDF

49.7 KB Created: 2020-08-07 14:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fdeb4b280b8fd018c1e1c5dc534a62f SHA-1: 8e7786e9f6f8ddeb4533186f9edd13682897e323 SHA-256: ef93d30645aee97f433b121dab3a31a0dc9bffb118ed726175a40a3215eb993f
234 Risk Score

Malware Insights

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

The PDF contains a social engineering lure, instructing the user to install a browser extension or update to view content. It also embeds numerous links, many of which point to a link farm hosted on Shopify. The primary malicious link, https://ttraff.com/pify?keyword=affiliate+marketing+without+a+website+pdf, is identified as a malicious redirector, indicating the document's purpose is to lead users to harmful infrastructure. No scripts were extracted from this sample.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=affiliate+marketing+without+a+website+pdf In PDF document text
    • http://files.4hcampohio.org/uploads/1/3/1/4/131453208/fifaxedilebabix_nigute_jumod_rapekarugiki.pdfIn PDF document text
    • http://files.redroomyoga.com/uploads/1/3/1/1/131164417/836d1.pdfIn PDF document text
    • http://files.listerpartyrental.com/uploads/1/3/1/4/131482892/1070805.pdfIn PDF document text
    • http://files.janenodine.com/uploads/1/3/1/4/131438348/1940142.pdfIn PDF document text
    • http://files.themerchantsguildstore.com/uploads/1/3/1/4/131408970/d5801d.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/1/0436/4900/7769/files/bra_sanay_kitap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/fajemew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/40904623996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/35661718533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0293/files/braun_series_9_manual_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/mowigaxaguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7945/1292/files/23889897469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2885/6487/files/boogie_nights_musical_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/58762062833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3462/files/bedejuzoriruk.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: 4hcampohio.org 5 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FA 5740 bytes
SHA-256: 2d277d1343802c6d73144f66e285a800e1b0a6f8c227d9f58da50e8f5b117aea
font_01_sfnt_off0000956e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956E 10624 bytes
SHA-256: e850337f128cc0a15f658480b5c5bd9518258f5896e79eccf4b0f43427eb4af4