Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89d4bd684f25c5e…

MALICIOUS

PDF

39.0 KB Created: 2020-08-24 05:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b5283dfe6ddb6c54b2e16908104554d SHA-1: 94a071d0d009c2b525935ec6e639f462b5cfa8c7 SHA-256: d89d4bd684f25c5ea5ddc188f315fe790e7c76ca7fd44a4699397eb092b0e431
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=android+studio+emulator+bluetooth+le, which likely serves as a lure to a malicious payload. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous benign-looking Shopify links suggests an attempt to blend in with legitimate 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.cc/pify?keyword=android+studio+emulator+bluetooth+le In PDF document text
    • http://files.drpattyslegacy.org/uploads/1/3/0/9/130969065/vokebigibawev.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/1/0432/2826/6654/files/fannie_mae_flood_insurance_guidelines_for_condos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2357/8774/files/wopiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/dapopimideb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6553/9741/files/18740235168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/netipurujepigemodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/38755846453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/xaturu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2665/3079/files/2931169329.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 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_off00005b5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5D 5196 bytes
SHA-256: 24f5fec240cb5e021744a1a031210ea8175ef9a7c02098c75872e9f896e0f897
font_01_sfnt_off00006cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCA 10188 bytes
SHA-256: a745c656c96bb154de2cd4c0be0368b324c72baa18030b69aec9924f1b717841

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