Malicious PDF — malware analysis report

Static analysis result for SHA-256 73021dd85617aecc…

MALICIOUS

PDF

40.7 KB Created: 2020-08-20 02:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9294cef6a667ad6531b72c84007e1e5c SHA-1: 6f3977830cddf5f53676fe0a1e501fcce3fa777a SHA-256: 73021dd85617aeccb00b584fcbc2d2f136b1481e3c9c0c6c068ccac2921ca6da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=solar+powered+electric+bicycle+project+report'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of many external PDF links also indicates potential SEO manipulation tactics.

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.com/pify?keyword=solar+powered+electric+bicycle+project+report In PDF document text
    • http://mamivolik.davidwaltersministry.com/uploads/1/3/1/4/131437622/vugafu_rapebabafuwesab.pdfIn PDF document text
    • http://jadutudal.true-ink.org/uploads/1/3/1/4/131437254/ruporixesakimezipe.pdfIn PDF document text
    • http://jazelek.seanjmnewman.com/uploads/1/3/0/9/130969933/e3af32.pdfIn PDF document text
    • http://files.mdeasonphotography.com/uploads/1/3/1/3/131379696/9f0d3dfc9d719.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/1/0429/7778/8057/files/physics_formulas_for_class_11_and_12_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/vijepogexesilexoxulapasos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5439/0687/files/rowofivet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5145/0519/files/origin_of_amphibians.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8347/1771/files/vokinumumuwixinijazapobeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/89429549860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/warifujapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/14922900765.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
🗂 Part of campaign: mdeasonphotography.com 5 samples

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_off00005f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9C 5404 bytes
SHA-256: 4784b104958ddd9ef1ebb24297cc2810b7b06819c33dc21c55dc68d443715e0b
font_01_sfnt_off0000721a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721A 10572 bytes
SHA-256: db6de85ad801db5492345add95d49314bb9ab01902b68569f4166b4701facb3b

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