Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb3edd90e0e8028d…

MALICIOUS

PDF

42.9 KB Created: 2020-09-19 15:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24cb5faa130a0112985b9bb2ce09a8d6 SHA-1: 5a24934c034d1755a18672e978398e511386737b SHA-256: cb3edd90e0e8028d80cefac6572d478994e6672bd823dc4c5ae2a0fe12a37f07
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body also contains text related to 'Ohio inmate records' and a callback phishing lure, suggesting a social engineering attempt. The presence of numerous external PDF links further indicates a link farm strategy to obscure the malicious destination. 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.
  • 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.me/wix?keyword=ohio+inmate+records In PDF document text
    • http://befatevu.stevenstairs.com/uploads/1/3/1/4/131453329/f3f203000234.pdfIn PDF document text
    • http://files.fredswansonbooks.com/uploads/1/3/1/4/131407315/8c66035e.pdfIn PDF document text
    • http://wiradiz.miss-pj.com/uploads/1/3/2/8/132814930/mavolafukefu-dopevejozamij.pdfIn PDF document text
    • http://files.luxeymaison.com/uploads/1/3/2/6/132695329/wolosi.pdfIn PDF document text
    • http://files.loyalsockband.com/uploads/1/3/1/4/131454567/zagebomebilone.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/1/0430/0413/3525/files/19835134136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/natisipidenuwumudaxifemez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/50837528048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/javanigumusabin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6390/files/kavokojufifinad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/ge_profile_arctic_refrigerators.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0341/2633/files/xutudekok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9043/4455/files/glimmerglass_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/neet_2020_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/65706244894.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_off00006591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6591 5172 bytes
SHA-256: edb4829b4ad77dd152f3ca682ad962e6fa5e28ce390f76f1f495e693f26e66af
font_01_sfnt_off000076f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F4 12380 bytes
SHA-256: a89ae9ac550c68150d75c7f85c0c8d9c521db3d9c346fdd8898d440e99e38a64

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