Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17b59e7e0ef524d…

MALICIOUS

PDF

73.5 KB Created: 2020-08-13 21:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f47b95c2aa90a769907e6878221f744 SHA-1: 39d2050e03156050b1eb762e9576168e9af56437 SHA-256: c17b59e7e0ef524d8b6c65319d724b55f6229018788102a6ae318d45487e895e
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a malicious redirector link pointing to 'ttraff.com', disguised with a keyword related to Medicaid. It also functions as a link farm, hosting numerous external PDF links, many of which are hosted on Shopify. The presence of a visible LOLBin command execution instruction suggests an attempt to execute further malicious code. The document body, though heavily obfuscated, contains the same lure text as the malicious URL.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=income+guidelines+for+medicaid+in+arkansas In PDF document text
    • http://files.lindaqphotography.com/uploads/1/3/0/8/130814636/571235.pdfIn PDF document text
    • http://files.wardragons.info/uploads/1/3/1/8/131871704/sepogome.pdfIn PDF document text
    • http://files.alexnewcombe.com/uploads/1/3/1/4/131407655/sifadilun-lewosefebu-botofegujurud-papap.pdfIn PDF document text
    • http://files.jnathan.net/uploads/1/3/0/8/130874278/9096663.pdfIn PDF document text
    • http://visetipi.biopharm-medicine.com/uploads/1/3/1/0/131070420/3453444.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/1/0428/3239/6447/files/bikirobob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/91244390920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/state_biot_savart_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/vemoxomazepisuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/sanuxuvesazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/71497313610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/powershell_change_directory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/american_english_vs_british_english_vocabulary_worksheets.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/49481825721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/calculus_for_gate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6159/8616/files/action_research_topics_in_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/fawatika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7688/5416/files/autoit_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/antimicrobial_agents_definition.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
    • https://cdn.shopify.com/s/fiIn macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

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_off0000dd94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD94 5344 bytes
SHA-256: f57888907db662cdee43168cb2421563b93c48d62754c22c438f369150010862
font_01_sfnt_off0000ef9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9E 11392 bytes
SHA-256: 7f6cba6b64013dc421bf7f26f9f749ddb8a98b742616ed8fe74ce55b09d88ac1

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