Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d123e046b4f2f21…

MALICIOUS

PDF

95.8 KB Created: 2020-07-28 19:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5581316041eab433446761c47e58d62f SHA-1: 5ee8787e3df679d7df668ec11bcc3eee8941d1f9 SHA-256: 7d123e046b4f2f218a5376f92ccaec5e1f758d9ef5d921c70da7acbde1f13dfe
202 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The ML classifier strongly indicates maliciousness. The presence of urgency language suggests a phishing or scam attempt designed to prompt immediate user action, likely leading to a malicious payload or credential harvesting.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=hemoptysis+clinical+practice+guidelines In PDF document text
    • http://files.agentsreferralnetwork.com/uploads/1/3/0/7/130738564/1954539.pdfIn PDF document text
    • http://files.cassinsackett.com/uploads/1/3/0/8/130815017/sipibeviloguxupinara.pdfIn PDF document text
    • http://files.poshdesignswholesale.com/uploads/1/3/0/8/130813860/mepifivejupudekunemo.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/1/0431/8937/1029/files/70976836745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9408/7582/files/suvemozewazij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/watiguxivapiputebaran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/fusisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/4088810777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/51346708813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/jekadegikaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/88943857038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9472/1187/files/sutolujilisibekegujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/84858962210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4369/2445/files/40629864721.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 6

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_off00013b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B6E 5336 bytes
SHA-256: ba1e8e57d343d8b4187dc2695ecf98cee2f1e00b35321ba1ff955fc78142b95d
font_01_sfnt_off00014d7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D7C 10528 bytes
SHA-256: 920d3a4dd06f4bb099cb3b1249b0e1626e94ea9ca6235614e79643f57882bf14

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