Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2de3ca818f493a7…

MALICIOUS

PDF

43.0 KB Created: 2020-08-14 01:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 280591ef035c3cc783c10645a998ad0a SHA-1: 63480cd35bba30a067b6b3c1c0430cd44631e802 SHA-256: b2de3ca818f493a7f67363ac3969dc80bb0ec595874803f5efc7cb6346cf12f0
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though partially corrupted, contains the text 'Cms billing guidelines for telemedicine' and a call-to-action phrase, suggesting a lure to trick users into clicking the malicious link. The primary malicious IOC is the redirector 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.
  • 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.com/pify?keyword=cms+billing+guidelines+for+telemedicine In PDF document text
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdfIn PDF document text
    • http://files.onecityhistoricalfoundation.com/uploads/1/3/2/7/132741433/2088774.pdfIn PDF document text
    • http://files.wcpestcontrol.com/uploads/1/3/1/8/131871618/sasekaginododowule.pdfIn PDF document text
    • http://miwobuja.queensimpson.com/uploads/1/3/1/4/131482995/panewa.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/1/0437/7139/6257/files/tinker_tailor_soldier_spy_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/nav_bhatia_wiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5374/4279/files/490901210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1027/7025/files/27534117739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0494/files/vutafajid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/gorenawuribadavotebak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/jipagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6399/1717/files/97336854209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/workforce_diversity_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/nozotodexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/pomibelepatazuw.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_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 5176 bytes
SHA-256: 0ab6a7052282373cb6319af916ee17545927a580a6a4dcd584a126e568ba4287
font_01_sfnt_off000073fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FB 13952 bytes
SHA-256: 9c11ef12bd949de6c5225166824c503b522c055035b5fd40c12610b7e46849c2

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