Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9957666e0d5a0c…

MALICIOUS

PDF

46.1 KB Created: 2020-08-21 10:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5843982cb29923f80ad7490b593682ab SHA-1: 453f0031b01ecd3eba0a70f6d61a514f418b4f2d SHA-256: 3c9957666e0d5a0c96d0c7801e20f3506c4b6b6b2976d2517a4b3be8aaf0e8c7
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'jury duty nsw exemption letter template' and the malicious URL. The primary malicious URL is ttraff.com, which is known to host redirectors. The document also contains numerous links to Shopify-hosted PDFs, likely part of a link farm to improve SEO 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.com/pify?keyword=jury+duty+nsw+exemption+letter+template In PDF document text
    • http://kerimid.enotecaathena.com/uploads/1/3/0/8/130813650/kitujokanag.pdfIn PDF document text
    • http://dagapo.desertdew.net/uploads/1/3/1/6/131606027/ad18f6dde39.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/1/0428/1165/4307/files/8th_grade_math_final_exam_review_packet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/lesujafirasabotuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4275/0114/files/cetoacidosis_diabtica_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/45443465963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/wsu_general_scholarship_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2045/8906/files/vinotuxagefenosuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/78021765765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4162/0119/files/zudokikamuvegemumuzimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/1519532421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/72675710286.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
🗂 Part of campaign: desertdew.net 9 samples

Related samples 1

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_off00007473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7473 5356 bytes
SHA-256: 9c1e355d2d47046d5ebf5241273aab87b76d63d9eef81c263e1bd350bac624fa
font_01_sfnt_off000086aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AA 10860 bytes
SHA-256: 6fe889007e79ed040099054b959e6b2eac137758efea2e6686532119c019e1d5

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