Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a592a5705676591…

MALICIOUS

PDF

42.5 KB Created: 2020-08-12 01:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a9bcbe49bf30f6413c4730ad659ef60 SHA-1: cf578b3c3b7bba9e717ad0110c03b477090ffcc4 SHA-256: 6a592a57056765910d20df3e851642d04bd61f452212df3895c07c8127326b3b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to an SEO redirector infrastructure at 'ttraff.com'. This redirector is designed to lure users into downloading further malicious content, likely as part of a phishing campaign. The ML classifier strongly indicated maliciousness, and the presence of multiple links to potentially malicious redirectors supports this assessment.

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=buku+bahtsul+masail+nu+pdf In PDF document text
    • http://files.christianmendozamusic.com/uploads/1/3/2/7/132741322/3492435.pdfIn PDF document text
    • http://files.stonehouse-studio.com/uploads/1/3/2/6/132695194/693804.pdfIn PDF document text
    • http://suxunil.midistrictalphas.org/uploads/1/3/1/1/131164079/vivitujafafibep-fejuriru-ruwil-nipuwimefu.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/1/0433/4167/6694/files/trasplante_de_medula_osea_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6304/0408/files/minority_scholarship_verification_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8556/8923/files/letarajesijarirame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2358/9788/files/wuzorilodepezagazutes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/lawubokorakubunem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/36832671690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/49507156289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/pisavojipolab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/vaxiliwelagesexivadul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/pengertian_politik_identitas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/92923818108.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 5

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_off000068e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E3 5440 bytes
SHA-256: fdaa7fa58efcc52caf4897f04de5a03e4da6debfcf42982052e08cf225559915
font_01_sfnt_off00007b3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3B 9992 bytes
SHA-256: d4355a500f3f79999dd4936d342fc2be8ca7611308c92a9e1ed1a44653b27524

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