Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4e53d22e3a8ed8…

MALICIOUS

PDF

54.7 KB Created: 2020-07-31 04:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99d610a9a2b0750d398286d20c80caa0 SHA-1: a1d5e3756ae938e8170f1af9a90a8d071b14eb7d SHA-256: 2f4e53d22e3a8ed8a40d40cec2a27f5c98e816f8de06fb060fe9218eedb45e57
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that is critical for the attack. The document also presents a visual download button, further encouraging user interaction. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adagio+in+g+minor+sheet+music+pdf In PDF document text
    • http://files.newyorkcity-files.com/uploads/1/3/2/6/132695360/jepavineverunogus.pdfIn PDF document text
    • http://files.jacksonvilleriverrally.org/uploads/1/3/1/4/131407918/bowan-gumudoki.pdfIn PDF document text
    • http://files.bsap.bg/uploads/1/3/0/7/130740368/6499233.pdfIn PDF document text
    • http://files.michiganozonecenter.com/uploads/1/3/2/7/132740692/jejuzujebofana.pdfIn PDF document text
    • http://files.rccghopmd.org/uploads/1/3/0/9/130969338/8571046.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/1/0432/6277/1358/files/39304633826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3955/3696/files/genokifadazutuloxazadogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1732/9064/files/febosaguvixikunep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1466/5886/files/jinejasumikusamak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/66087782380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/wenaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9510/4424/files/29205282281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/34765836653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/fejafupiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5765/files/gekezesolekitod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/gunudofiwudugorubimen.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 4

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_off00009694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9694 5408 bytes
SHA-256: ee261e32f389779b39875f42601553b48d584b69f552ee918d1359f64d20e8b9
font_01_sfnt_off0000a8ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CE 10584 bytes
SHA-256: 91f1ea790c02b79263c2352f2ec26fe299ed533a7bf994dbc04e3382cc51a5fa

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