Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee31909a1a5251b…

MALICIOUS

PDF

44.2 KB Created: 2020-08-22 07:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02ca668833b5c486f00fdbca7b8bc186 SHA-1: ff575b90d4a563d80e9b0948e6ed4d955fde9c80 SHA-256: 9ee31909a1a5251bd304a19a5d4b45607dbb9f0c815bd24ceb996404c3fb1b73
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a download button. The document also hosts a large number of external PDF links, many hosted on Shopify, likely for SEO manipulation to improve search engine ranking for malicious content. The presence of a call-to-action phrase further supports the lure.

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.cc/pify?keyword=business+system+design+document+template In PDF document text
    • http://files.njagc.org/uploads/1/3/1/8/131871583/gowagopamako.pdfIn PDF document text
    • http://falade.eibenteaching.com/uploads/1/3/2/6/132682974/dujakubatir-rawemeso-sawula.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/1/0429/9980/8149/files/82572174094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3487/7847/files/equivalent_resistance_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/adjective_or_adverb_worksheets_with_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2343/2861/files/zigode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/22138592458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7913/0531/files/zend_avesta_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2346/files/69448489405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/27124029568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/changing_to_word_doc_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/food_sensory_evaluation_form.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 8

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_off00005fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCD 5448 bytes
SHA-256: cacbec1a01bae616c70c77c38028883699be4e0d3ee813684cc4b4ee3a73ae79
font_01_sfnt_off00007247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7247 16032 bytes
SHA-256: aec65e309dc8bf23320702b3719eb6599cbfc13e35aafaeab354e358877162b6

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