Malicious PDF — malware analysis report

Static analysis result for SHA-256 9824ceb59e887fdf…

MALICIOUS

PDF

50.0 KB Created: 2020-07-27 02:53:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81e78db3c913ffdcedb6dd46d7a79a81 SHA-1: fec5cf8a8316585387b78650349bbfd1ea5f897f SHA-256: 9824ceb59e887fdf1f6fb6e967f7028ac65a2f00f81af6ba58f5cc75e0a4873b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. This suggests the document is designed to lure users into clicking malicious links under the guise of providing a 'software business plan'. The presence of numerous Shopify URLs, while some are benign, contributes to the link farm characteristic.

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=software+business+plan+free++italiano In PDF document text
    • http://files.williamblakefilmmaker.com/uploads/1/3/2/6/132695749/nakofase.pdfIn PDF document text
    • http://files.citybeerfest.org/uploads/1/3/0/7/130776639/5b50a69444.pdfIn PDF document text
    • http://files.studio.dayafoundation.org/uploads/1/3/0/7/130776508/gatepodoragumazara.pdfIn PDF document text
    • http://files.aedutah.com/uploads/1/3/0/8/130815058/5807955.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/1/0429/8581/6218/files/96501037816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/25559248605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/ladix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5571/8298/files/8991920024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8859/3567/files/zegofovosiwib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/78897845183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/zomemekuropisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1791/files/zizibakitemas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/kexalinonubetitebep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/dadupebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/1730881862.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_off000085c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C6 5112 bytes
SHA-256: 9c2bfe501a5341ae61b052c20a2f801ae19bfdf7fbd0ba43a3960ea2319197e6
font_01_sfnt_off00009738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9738 10256 bytes
SHA-256: 0765e61b3c41c3a00bf776687003305a29f4155a24e9dad4139cb2d271df6e33

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