Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4eaa04cf77d7003…

MALICIOUS

PDF

63.4 KB Created: 2020-09-13 07:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00c7d2a60eddc52df30bd03a418b3c96 SHA-1: dd3f8be138077a79cbef48a5037ec7bae3071f55 SHA-256: a4eaa04cf77d700306f1aa1af56cfefc45ac605d6812fafb5ad8a74f6c07228a
202 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 a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.cc/wb?keyword=drama%20triangle%20worksheet%20what%20is%20your%20primary%20role, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL and appears to be a lure for a worksheet, suggesting a social engineering attack to redirect users to 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.
  • 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/wb?keyword=drama%20triangle%20worksheet%20what%20is%20your%20primary%20role In PDF document text
    • http://files.educationairedale.co.uk/uploads/1/3/1/6/131606198/78a0263f1820.pdfIn PDF document text
    • http://digoxon.createddesignsbytammy.com/uploads/1/3/0/7/130738731/8182129.pdfIn PDF document text
    • http://bivotil.ajoyfulcreation1.com/uploads/1/3/1/4/131407492/vijafujobami.pdfIn PDF document text
    • http://guxaxeb.maestrodonappert.com/uploads/1/3/2/3/132303354/kajakozokezan.pdfIn PDF document text
    • http://files.erikakruse-photo.com/uploads/1/3/1/4/131484328/pumajaziloxabo.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/1/0431/2802/9345/files/asterix_comics_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/jemorurejikam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4474/files/fekamulezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0722/1658/files/25479190895.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b27199_db25d913eb3843fab898ea2968464482.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6a22cb_2ec9e95441b5404ab5dcc6ee5ae08cbf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ce2eb99890cb4ec88b7d458bb6da8de4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/37321e_34a244af43e6471a9a914c113df4f871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2198/files/math_methods_in_the_physical_sciences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8511/0177/files/37215034211.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_off0000b8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8DA 5488 bytes
SHA-256: e529320b01b40dd9536a8741afb13974da0a60d4b7274fea046f00d91f5a2911
font_01_sfnt_off0000cb7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7A 10888 bytes
SHA-256: ff2015cd299e68d200a940c7ea7fceab2e22d78c44d4fbb6fff6db64265ed568

Open this report in the interactive analyzer, or submit your own file for analysis.