Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0aeeead4d15e07…

MALICIOUS

PDF

44.0 KB Created: 2020-08-08 02:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 185e4aa087bdbdd6fa06b9848d404169 SHA-1: f8bee326a4b6ef3b83507e2e26b48a89ccf4ae16 SHA-256: 2d0aeeead4d15e0768f454b5d03604185d8cfa8c437c7c2115485df0caa11442
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though obfuscated, contains text related to downloading a PDF, and the primary URL points to a redirector designed to lure users. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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.ru/pify?keyword=harper+medical+biochemistry+free+download+pdf In PDF document text
    • http://files.voxibc.org/uploads/1/3/0/7/130740213/bawiwolerofuka-winamakunire.pdfIn PDF document text
    • http://files.torgersonkickingpunting.com/uploads/1/3/1/4/131453526/porekukivapor.pdfIn PDF document text
    • http://files.hellokels.com/uploads/1/3/0/8/130813420/tirisuj-nerogiro-momakanom.pdfIn PDF document text
    • http://files.heretohealthwellnessclinic.com/uploads/1/3/2/7/132740214/1678021.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/1/0450/5042/9598/files/la_jolla_shores_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/sijabijiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3760/5544/files/51737440778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/52175391681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/82413543284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56802730071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/30533556765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3975/9255/files/cardiomegalia_infantil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67257536452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/sepabuzikodowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/git_submodules_init.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/ff14_overlay_plugin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0958/8897/files/21862359420.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_off00006ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA7 5688 bytes
SHA-256: 2829348f47d93affb61dd3c3e1b9cc89439417ea99fcf096be864a7c2bf5b4d5
font_01_sfnt_off00007ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE1 10328 bytes
SHA-256: 52e94ee8eb37595bd0320b1d4eb11d5c2f26bc6c0abab933ec50fadff23f5c39

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