Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c74642a05c8a1e0…

MALICIOUS

PDF

39.5 KB Created: 2020-08-18 17:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c626cd52470765f1fc4ed0c7bee9f261 SHA-1: 8a4e2d26f54c5b2c872d11cf77b31b4c3a0f7b02 SHA-256: 1c74642a05c8a1e0c33266166f70d43164da6879a33b7407173790ff68c60cfe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains references to 'mail merge template word 2013' and multiple URLs, suggesting a social engineering lure. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for 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.cc/pify?keyword=mail+merge+template+word+2013 In PDF document text
    • http://files.audio4n6.com/uploads/1/3/1/4/131408415/3092727.pdfIn PDF document text
    • http://files.sunnyandsavvyrootsco.com/uploads/1/3/0/7/130776381/3b540f5319280.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/1/0428/4186/6403/files/6659224669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2892/3046/files/xikate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/32044795222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/bunakawolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/4752/0165/files/87160273314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/karepimesifuwosug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/accounting_and_financial_management_notes_for_mca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0441/8455/files/the_dead_sea_scrolls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/maratinijabik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1692/8923/files/malayalam_kambi_kadakal.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_off00005cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEF 5688 bytes
SHA-256: 5d4d4430b183ba7bd96fd2ae7ea5950d3c5a3b8496db3dfb23e48fdfc7dd3a95
font_01_sfnt_off00007053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7053 9684 bytes
SHA-256: eaca2c4d63aa46a96f7b2492f8137deb782bab7698974470680305cd421d628f

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