Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee145a9b91c3241…

MALICIOUS

PDF

41.6 KB Created: 2020-08-26 12:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50e0fa4c43f723eccb54bc2e818b78b7 SHA-1: 565b318fde430f3a98a0426965327416ac17bea0 SHA-256: aee145a9b91c32414f79dd761067fd34e888a8c1be349bf9423e97318492ea79
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for 'soundtoys vst crack'. The document body, though heavily obfuscated, also contains a reference to the same URL. This indicates the primary purpose is to redirect users to potentially malicious content, likely for software piracy or further malware delivery.

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=soundtoys+vst+crack In PDF document text
    • http://files.straffordparkhoa.com/uploads/1/3/1/4/131437363/penoxoremasatu_xufaxomabejak_xidikijux_fosage.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/1/0435/6079/6318/files/72439773198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/toxokusapigaxepenetino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/new_braunfels_newspaper_obituaries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/34387396750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/braun_ear_thermometer_manual_6520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5725/0455/files/pixelbook_vs_pixel_slate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/vaxibinibak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/xilezolojifasamezipufif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/format_currency_in_jasper_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/kesotud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/wadozokikomexezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1760/0156/files/bupigikadesire.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_off000065cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CB 5232 bytes
SHA-256: 65b372ddd11fc545b862db31ad66b9e260d35dfce4e061bec5dd75c7a1baee7b
font_01_sfnt_off000077ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AE 10096 bytes
SHA-256: 832635a4961afe2012bf0d1a1def97f157906481a4a8b1a67b76408865d5b02b

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