Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe951a542b8fad4…

MALICIOUS

PDF

44.7 KB Created: 2020-08-15 01:02:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06544cff8f09cbf5fd668d6e4e2e45b0 SHA-1: bc60e18c8c454f602430009556f94798fa942490 SHA-256: 1fe951a542b8fad43f5ffd8bc21f34bfd48459bff269438b8e22ccf8f16be441
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One of the primary links, 'https://ttraff.ru/wb?keyword=saitek%20x55%20manual', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and appears to be a lure for users searching for a 'Saitek x55 manual'. The presence of numerous SEO-optimized PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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/wb?keyword=saitek%20x55%20manual In PDF document text
    • http://pujixo.rollupfoodtruckmenu.com/uploads/1/3/0/7/130776167/5094539.pdfIn PDF document text
    • http://files.aprilotwell.com/uploads/1/3/1/0/131070539/wuwejabe.pdfIn PDF document text
    • http://files.rubbercityshakes.com/uploads/1/3/0/8/130874610/lijudobetobadoxew.pdfIn PDF document text
    • http://jeditu.ctknj.org/uploads/1/3/1/1/131164250/786f7e11cc4239.pdfIn PDF document text
    • http://nipiri.tuttlesnursery.com/uploads/1/3/1/1/131164250/5436244.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/1/0433/7329/7822/files/kutesosanovigororizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/vonokikinidelat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/45395340058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/pixejabimekuvovoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1984/5278/files/hearthstone_f2p_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/32502413744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/36015762128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2916/2152/files/chloroform_ko_kaise_use_kare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/revuravokigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/66895228418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5224/files/juniremibowakibuweniz.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 3

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_off0000728e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728E 4916 bytes
SHA-256: e0a3c30b74727bb9fbd9a5b16b7bd1f10a1612ff86145116b0469720f4f402a0
font_01_sfnt_off0000833a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833A 10128 bytes
SHA-256: fb0ca81f1f6b1931066b8ffaecaed28eb21d38fa5b1d20d316cd6b6b853fd9df

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