Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a8c747b3e35deac…

MALICIOUS

PDF

89.7 KB Created: 2020-08-05 16:47:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a43ee5f292bd1c897fbf461cd8d0744 SHA-1: a53b2e518b51b97eaee351591eecb9d990dadf73 SHA-256: 4a8c747b3e35deac2abeb6c788750b118673f03f6d7068eaa1abffb4497a656a
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to trick the user into visiting this malicious site. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. This suggests a campaign to drive traffic to malicious sites.

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=barefoot+in+the+park+full+script+pdf+free In PDF document text
    • http://files.localzak.com/uploads/1/3/1/4/131437454/medepigilipi.pdfIn PDF document text
    • http://files.lahongsnap.com/uploads/1/3/0/8/130814644/sodapefufexifowig.pdfIn PDF document text
    • http://files.crossfitchalmette.com/uploads/1/3/0/7/130776861/32825.pdfIn PDF document text
    • http://files.kymchessall.ca/uploads/1/3/1/6/131636957/9537833.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/1/0429/6369/7817/files/dagekosividadikofab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/menunoritupozokixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/sozipuzuvusonetogexaxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/74941621953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/sublime_albums_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/45627839165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/76049982193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/woboxadezadiponi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4951/6199/files/zafiwuzebupumixugomifetan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3566/4284/files/quality_assurance_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/fortalecer_autoestima_en_adolescentes_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6151/8231/files/zavexonilitigivadutopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5622/files/rokusuxawazisabekaritov.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 7

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_off00011da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA7 5356 bytes
SHA-256: dd2e953b2669136e2ee32784a2ce7c1531f76eefb79785863d3cb3bfbc5acecf
font_01_sfnt_off00012fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD9 12688 bytes
SHA-256: fe4e9ecf0c9ccb1534ba393f36fe4276db18ef783544bf2acc8746796d782427

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