Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aebbe40c6f4cb8e…

MALICIOUS

PDF

41.0 KB Created: 2020-08-21 08:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f73f04e63a4d3ee9c15c14419241f19 SHA-1: 106a7c98b22c403094a06f2cec43c87f80fdde16 SHA-256: 9aebbe40c6f4cb8ecd21e525e65321523f79bd04235cc497b6d2e5677452fe62
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=android+os+update+2019'. This URL is likely used to redirect users to a malicious site or download further malware. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of a PDF link farm heuristic further indicates a coordinated effort to distribute 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=android+os+update+2019 In PDF document text
    • http://bedakozad.ourladyoflourdesparish.ca/uploads/1/3/1/6/131637789/a642be8f.pdfIn PDF document text
    • http://files.wrapthatjuul.com/uploads/1/3/1/8/131858791/280e5.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/1/0430/9850/5369/files/46275252727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/vukegedoluwejaxobipoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8076/files/80004408096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/boundary_condition_openfoam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5760/files/tcode_for_machine_breakdown_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/biological_molecules_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/46794429353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/lawomowivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1635/files/84217733839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/models_of_language_acquisition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9784/8996/files/44677219046.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_off000062ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62ED 5392 bytes
SHA-256: 6824ab7a32fd31af7362469c34463d00d8592435a19be79208faa9bc7e8263b8
font_01_sfnt_off0000754a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x754A 9840 bytes
SHA-256: c18dff599c6d72aa27d1dcd6733d83f288c2776a374aa6d47d46ba9fa78637c5

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