Malicious PDF — malware analysis report

Static analysis result for SHA-256 701f23fc3695dc5e…

MALICIOUS

PDF

38.2 KB Created: 2020-08-12 14:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 910917459c37a22b3640053cde82381f SHA-1: d7d9133b7494aed55038d717bb0a067e28fe1d9d SHA-256: 701f23fc3695dc5e784ff7fea29dd1302f730a9b94836699e91d48ac61bbb0f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The primary lure is a "ragtime piano score pdf" which redirects to a malicious URL. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing campaign, likely using a spearphishing attachment vector.

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/wb?keyword=ragtime%20piano%20score%20pdf In PDF document text
    • http://nisojot.mountaincitymasoniclodge.org/uploads/1/3/1/4/131453574/5719086.pdfIn PDF document text
    • http://files.inmotiongrafx.com/uploads/1/3/1/3/131398497/ziripexekuzus_zukopovufadomun.pdfIn PDF document text
    • http://natiro.treasuresbytinamarie.com/uploads/1/3/1/4/131483337/poliwufinisobivof.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/1/0433/0687/7080/files/70339383958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/vowepukapudos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/dd_1351_2_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/jurnal_akuntansi_perpajakan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7613/2774/files/minecraft_forgelin_1._12._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1079/1323/files/24281617501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/tofapivevukuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/panasonic_bread_maker_sd_2501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8831/files/kilujilosem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/58163924859.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_off0000570d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x570D 5448 bytes
SHA-256: 298c8dbd04823a06abbea84724d2cab02f51939d61afed3af214add1bc68a30e
font_01_sfnt_off00006980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6980 10132 bytes
SHA-256: a819f972b0b0992ab793923dc94889ccd654b5293a2f28476f2cecfb8d188937

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