Malicious PDF — malware analysis report

Static analysis result for SHA-256 15cecc6f1e4ba2ef…

MALICIOUS

PDF

46.6 KB Created: 2020-08-01 10:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f5f2c8d44d8553de2bcdd5cc6da977c SHA-1: ba0e80e6ce293d516c4ef227c3ed77cdd523ecb7 SHA-256: 15cecc6f1e4ba2eff128bca237b8d4679649dae5af89bd9cf07f9f5c48a2c1be
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links and document body text that direct the user to a redirector URL, likely to download a malicious payload. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document also attempts to trick the user into executing commands. The presence of multiple SEO-optimized PDF links suggests a link farm strategy to distribute the malicious content.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=install+pygame+mac+homebrew In PDF document text
    • http://files.rootconstruction.net/uploads/1/3/0/9/130969220/6850657.pdfIn PDF document text
    • http://files.soque.org/uploads/1/3/1/8/131856318/9122452.pdfIn PDF document text
    • http://files.venuevaletusa.com/uploads/1/3/1/3/131384025/a132708472.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/1/0432/4874/6651/files/12183306552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/wofumegakomolodorixeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/vupafavabafudasakigad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/xusezitifupas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/92020264015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/86659706491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8170/3319/files/77754846939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/muparup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/fozekiwixojodavalalawe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6067 5620 bytes
SHA-256: 831c9924b7242c90dda2579b1987f85459d4fbb18fa19e7883f568e73ffd5ecf
font_01_sfnt_off0000736b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x736B 10684 bytes
SHA-256: 853215264d0fa7d23e6cad3bfd811c975081268ca2817d832a3f4ddeeed74b43
font_02_sfnt_off00009839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9839 16388 bytes
SHA-256: a4f616c8ed03231f927c8f6725ddfb6aed79ba1e9c0c9257d690ec40f184d4cc

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