Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac19ca981dfadb8…

MALICIOUS

PDF

45.1 KB Created: 2020-08-03 14:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 215fc13e5ea05b4d8a85cf6370d496ae SHA-1: ae63169ea223b0254c3a36b638fc63e4f482895b SHA-256: 7ac19ca981dfadb82f573b62bdc2f4e0e52532c339cc8f48c8aee40665de3289
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting a phishing or scam attempt. The presence of a malicious redirector link strongly indicates the intent to lead the user to a harmful destination, likely for credential harvesting or malware delivery.

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=architecture+diagram+of+8086+microprocessor+pdf In PDF document text
    • http://gelimifo.permezone.com/uploads/1/3/0/8/130813765/pemurimot.pdfIn PDF document text
    • http://files.interdisciplinaryexchanges.org/uploads/1/3/1/4/131453559/bc4a72e97481.pdfIn PDF document text
    • http://files.suwastikanaidu.com/uploads/1/3/1/4/131437750/kojumosudigikenaz.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/1/0432/5575/9011/files/50852554604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/75870930132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4698/files/dozajamilefepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/38951936184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/buzutitofajosamavawoviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/77602515902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/sivow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5696/1438/files/ramunaforunebixupamomeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/ingobernable_netflix._webrip_trollhd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2363/7402/files/momipexifefa.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_off00006a00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A00 6016 bytes
SHA-256: b1b973f1fd0b58906ee394963fccb1bfca046535ee903d52033c9b6b45ac3b3f
font_01_sfnt_off00007e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4D 12976 bytes
SHA-256: b9c4a3433b98ac8abec68d4164ec0e93b1a412dd0e87dc9f3f873abd1cc9b4de

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