Malicious PDF — malware analysis report

Static analysis result for SHA-256 debec3669a852f26…

MALICIOUS

PDF

49.2 KB Created: 2020-09-19 08:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4024d7b3d5a7858eceb1590f0b7f3dd2 SHA-1: f38eab526c128c2b355c8daac255e8094845a052 SHA-256: debec3669a852f26ff3040f8f4790c7cf344bd92e0a96eddf3a0f8d655695fcf
202 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is designed to lure users into clicking through to further malicious content. The document also features a link farm of numerous PDFs hosted on various domains, suggesting an attempt to manipulate search engine results or distribute content broadly. The presence of a 'download' call-to-action further supports a malicious intent to drive user interaction with the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/wix?keyword=dual+sheath+redux+shield+on+back+not+working In PDF document text
    • http://files.coloradoaps.com/uploads/1/3/0/7/130740249/165141.pdfIn PDF document text
    • http://lokifujup.wildchildfibers.com/uploads/1/3/0/8/130874478/2777005.pdfIn PDF document text
    • http://files.perrycountyanimalrescue.org/uploads/1/3/2/6/132681456/e88b2.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/1/0433/8909/1989/files/sonetibomupufoluzutifovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/keynote_template_smile_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1870/5306/files/dispute_a_parking_ticket_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/wititaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/how_to_reset_keyboard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/gugegezunegaduditoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/php_bangla_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/90744769809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6212/7509/files/jipisatawajexedavusubor.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 4

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_off0000810c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810C 5564 bytes
SHA-256: 83400bfe4403f3542989206af93322c5adda46fbfc812959a38f5de08df83761
font_01_sfnt_off0000940d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x940D 10524 bytes
SHA-256: 58c81c852a5b06cc8958c69991fac816ef9e46925f39840064960dbc91bc6ac4

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