Malicious PDF — malware analysis report

Static analysis result for SHA-256 96bbbeedd3b27a39…

MALICIOUS

PDF

42.6 KB Created: 2020-08-20 04:37:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05e88c24f5438b40d02570f687c912ed SHA-1: 27fe061f56898400cea752cce03ab0b7e3a13d32 SHA-256: 96bbbeedd3b27a3986bed61b8569ad29a54dad9318e384a5c5a5b3fb72e84036
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as sheet music, aiming to lure users to a malicious site. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the ML_NYX_PDF_MALICIOUS flag indicates a high probability of malicious intent. The embedded URLs suggest a link farm or redirection scheme to distribute further payloads.

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=hey+jude+piano+sheet+music+musescore In PDF document text
    • http://files.hypnobabiescoloradosprings.com/uploads/1/3/1/3/131383949/salasujugavuzifumi.pdfIn PDF document text
    • http://files.fear-lesstherapy.com/uploads/1/3/0/7/130739265/1207411.pdfIn PDF document text
    • http://foxigug.elcequestrian.com/uploads/1/3/0/7/130740444/febedelunez.pdfIn PDF document text
    • http://files.masterclassbudapest.com/uploads/1/3/1/3/131398259/delirobufukoxis-rudovizikelex-nulomigeforudid-kulapenefeba.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/1/0428/3593/5388/files/xituxoritonenuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/41970403633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/wenofovasezanesokogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/75036653711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4840/1046/files/kidap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/fawevenowitad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/cafta_certificate_of_origin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9294/9658/files/muppet_treasure_island_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/229905594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/40442035273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/screw_thread_types.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_off00005b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B12 5420 bytes
SHA-256: d81ba2af341b2c992d9a7d2bbd7e5d3493b77c0475d88a49024d2ecd415f43d0
font_01_sfnt_off00006d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5E 15376 bytes
SHA-256: 96964110f06c85f8310ea185060f8602dfec0c7289b94dd9350a7af60c6f0955

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