Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e3ab8f854db748…

MALICIOUS

PDF

53.2 KB Created: 2020-08-21 14:07:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df695e8b396169e8f2c6b07de1da41d4 SHA-1: 9c7338ff6e66f588fa3e292e710ccdddf45fa81a SHA-256: 24e3ab8f854db74849d207c922b4d657ebd43c6399d5f3b962b1f42047cc9e50
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=halyard+isowipe+safety+data+sheet'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, one of which is hosted on a suspicious subdomain. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to disguise its true nature. The presence of a callback lure heuristic further indicates a phishing or scam attempt.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.ru/pify?keyword=halyard+isowipe+safety+data+sheet In PDF document text
    • http://gikugukem.cobbosseeconteesnowmobileclub.com/uploads/1/3/0/9/130969521/6c423cf50a18a.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/1/0431/7921/2959/files/19939071503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6225/5006/files/13128928713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/sorting_algorithm_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/12352615033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/utah_dispute_resolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3884/9696/files/sakojir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/72480724584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6963/5734/files/72777800264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/vajimatefetexeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zetelonum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8948/5223/files/14368699746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9394/1671/files/nuvujozuvefiribin.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_off00008728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8728 5284 bytes
SHA-256: 1f0bd2c798e952a933b8b45a0c7510e31db3cabd3c8eb84a0fb050c199d59d29
font_01_sfnt_off00009930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9930 15148 bytes
SHA-256: 74e73d96b4ffc2e329a1838a6265c55395309e94c0beda85a8e794bc210fc43c

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