Malicious PDF — malware analysis report

Static analysis result for SHA-256 af9b6984e2c7b45b…

MALICIOUS

PDF

43.1 KB Created: 2020-08-10 11:17:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80a3cf050f4f5a6a2da15c29a5eb9ad8 SHA-1: 2017d067ebcf9ab29eaa6b5698f6575f19cb31b7 SHA-256: af9b6984e2c7b45b0b95b52b88d3587b807c354315d8186cc61c54a6a87be2e0
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com, disguised as a free PDF merging software offer. This indicates a phishing or redirection attack. The document body and heuristics confirm the presence of numerous external links, many of which point to Shopify domains, likely as part of a link farm to obscure the malicious redirector.

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=logiciel+pour+fusionner+des+pdf+gratuit In PDF document text
    • http://files.imperialphotojkt.com/uploads/1/3/1/0/131070792/mipomebenovemugata.pdfIn PDF document text
    • http://files.impartalliance.org/uploads/1/3/1/4/131407625/2be183272a3.pdfIn PDF document text
    • http://files.valleytems.org/uploads/1/3/0/7/130776312/favumifu.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/1/0440/1332/2398/files/31634100445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/dijejaduxovur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/68843086267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4551/0568/files/jugojokubimadiwunaxozoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7334/6472/files/carte_de_tous_les_pays_du_monde.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9475/files/mercury_60_hp_4_stroke_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/26273940901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/79176934935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3492/4440/files/86329416614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/jobusixewalobejokubalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6069/6990/files/clep_biology_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5765/1613/files/catalogo_bticino_mx.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_off000065b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B0 5264 bytes
SHA-256: cb4ea11297af38d9ede05edfb88a034f60cd3e93be0624add3a9cd2b0af58986
font_01_sfnt_off000077b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B0 12020 bytes
SHA-256: 3df023030ad3d2734816370acbb63374c0b23dc059310198a2c5c036ea43790e