Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e5de6800031503…

MALICIOUS

PDF

33.9 KB Created: 2020-08-10 02:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95b656cb19ab831c95aad6a5442bf5aa SHA-1: 7b56fc650e6cd8b651692d934fc703b065533e5f SHA-256: c6e5de680003150312b0ac1a183a41b58d3c759903cc4937e7328e4825999670
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary URLs, 'https://ttraff.ru/pify?keyword=assembler+pdf+et+jpg', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to Shopify domains, suggesting a coordinated effort to distribute malicious content through a link farm. No scripts were extracted, but the PDF structure itself is the delivery mechanism.

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.ru/pify?keyword=assembler+pdf+et+jpg In PDF document text
    • http://mijar.stfranciscentre.net/uploads/1/3/0/8/130814328/bozixabos_rofufojasipu.pdfIn PDF document text
    • http://files.benbraaksma.com/uploads/1/3/1/8/131872199/letibisowo.pdfIn PDF document text
    • http://files.makealbertagreatagain.shop/uploads/1/3/0/8/130873826/jimimu.pdfIn PDF document text
    • http://files.fritzstudiofw.com/uploads/1/3/2/7/132740412/6341846.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/1/0428/9835/8432/files/mejamuzeditika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/ramamesidimelawigijupomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/python_only_show_2_decimals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1149/5320/files/anti_hero_characteristics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/3872918083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6995/4453/files/41559786803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/nesenorogukafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zawitowawipujeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3616/files/xatiwaledova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0044/6626/files/8980168386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/veletar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0922/6398/files/danuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2279/4395/files/sixipoziwijo.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_off00004741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4741 5356 bytes
SHA-256: 7a0ab32c3a2186ed6e8ee3649794b8576b0e760069de28748bb092da7cea90fd
font_01_sfnt_off00005964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5964 9804 bytes
SHA-256: a9ccdd885ab2dbb71e52ef92651526e508f29b5ea32c1f20d6925d569b041c79

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