Malicious PDF — malware analysis report

Static analysis result for SHA-256 5108b2cb7fc88fcd…

MALICIOUS

PDF

45.4 KB Created: 2020-08-18 14:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3b38c63b7e2b099ea29bcf4b2fe3df3 SHA-1: fe9e90c62a675ba10e5dd536b496d798424dcd5d SHA-256: 5108b2cb7fc88fcd92842617745608e3d513bb1bf45b177d36ff00f06b1c7ad4
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same redirector URL and numerous other URLs pointing to PDF files, suggesting a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to deliver a payload or phish for information.

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.cc/pify?keyword=chrome+browser+for+sony+android+tv In PDF document text
    • http://files.innovationsbuildingservices.com/uploads/1/3/0/7/130738501/c7ad0bee378.pdfIn PDF document text
    • http://files.scubadivingperhentian.com/uploads/1/3/1/0/131070520/denowiv-dijaw.pdfIn PDF document text
    • http://files.ronaldchaseauthor.com/uploads/1/3/0/7/130740367/luxewesazivuzud.pdfIn PDF document text
    • http://files.veerahiranandani.com/uploads/1/3/1/0/131070820/6404631.pdfIn PDF document text
    • http://tunuw.stratocasterpickguards.com/uploads/1/3/1/0/131071157/4272037.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6160/6550/files/getanoxizokara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8993/7055/files/boxbox_riven_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/bergey_s_manual_of_determinative_bacteriology_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/fazonamokameluvuwazosure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4677/1607/files/43464539924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5445/7254/files/geleke.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EC 5320 bytes
SHA-256: 648fcca2b6373f8d8c5746d342f98abc3961ea69c887b4be22271d78014b7f58
font_01_sfnt_off000076f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F0 10376 bytes
SHA-256: b1b7abe516183292985258a93934dccc59c692eecd07d05e87754bedfd9cf84d
font_02_sfnt_off00009a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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