Malicious PDF — malware analysis report

Static analysis result for SHA-256 670ac9af824a689d…

MALICIOUS

PDF

59.1 KB Created: 2020-08-02 16:28:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd7abc0eba817fc0b9584b10718f6885 SHA-1: adc9d2d2168322777b9feb10e499e6b0d8a513d0 SHA-256: 670ac9af824a689d82befbf44441916d3781915e7625c5f7487e0ad5229f5b3d
194 Risk Score

Malware Insights

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

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 text related to 'Persona 5' and a URL that appears to be a lure for free content. The presence of a large number of external links, including a link farm, suggests an attempt to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=persona+5+how+do+you+train In PDF document text
    • http://files.trovenj.com/uploads/1/3/0/9/130969963/4c6ab3a2b07a3.pdfIn PDF document text
    • http://files.winninggodsway.com/uploads/1/3/2/7/132740519/f223560a2.pdfIn PDF document text
    • http://files.lesliemartinart.com/uploads/1/3/1/0/131071289/12257.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/1/0434/5489/0149/files/34377174367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6699/0502/files/baguxivemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/81714913643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/35300847602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/komizakatiperunitewokapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/lixefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/reruterupodunojeraliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8161/9873/files/vejid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/laxetopoganafokigalir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3330/4993/files/rujanurisilumipan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/46489853378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6614/6472/files/17631196036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/30479828051.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000930b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930B 6792 bytes
SHA-256: 16325fd30e6b05722a22acfbc7eefce8d9d6f14821dcd2a1e46c8d7d194f4617
font_01_sfnt_off0000aa35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA35 5200 bytes
SHA-256: 81a4f63491e8008fbc8bd9cf7d3e0a0aeeca25e64e9fea4a0cfad32ac0b61d62
font_02_sfnt_off0000bbf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF7 10388 bytes
SHA-256: c8abd557c9f65af4311c955a7d85893c55831046e02f61cdaac856af93e4a139

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