Malicious PDF — malware analysis report

Static analysis result for SHA-256 027eb98b54162551…

MALICIOUS

PDF

72.7 KB Created: 2020-08-05 01:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b79419bf612334e95cac468d77291d59 SHA-1: 91170d09a5d2fa1a6fc38610705f20f33c4b6705 SHA-256: 027eb98b5416255127eb9608a133a3ccd9b4011f5cc47931a6d92e9a5cf78b66
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=emergency+endodontic+treatment+pdf' is identified as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's designed to lead users to malicious content, likely for phishing or malware delivery.

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=emergency+endodontic+treatment+pdf In PDF document text
    • http://files.gopcffamily.com/uploads/1/3/1/0/131070169/7088299.pdfIn PDF document text
    • http://files.waindustrialsupplies.net/uploads/1/3/1/1/131163867/17bd03.pdfIn PDF document text
    • http://files.azadlab.ca/uploads/1/3/1/4/131455621/1069650.pdfIn PDF document text
    • http://files.liira.org/uploads/1/3/0/8/130813639/woxudoli-velozi-wugipoxim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/36142646750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8826/2821/files/avery_8167_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/29233708743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/57655415605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/application_virtualization_in_cloud_computing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0504/8994/files/77643804888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6305/8325/files/47452552145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3400/7973/files/car_engine_parts_and_functions_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/nolokezekajekugajakoxazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9176/3105/files/wavigibujakexeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/65792718313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2931/4206/files/7481891947.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CF 5112 bytes
SHA-256: 15d20d096e6aeeb3a7196d9d85c0595e5974e33ff13844c055bfb9ee9c1ce3f7
font_01_sfnt_off0000d30c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30C 6092 bytes
SHA-256: b455134215c1f127543c9e9325f175308c359cbf98b278a12a4b01fea3a88c9a
font_02_sfnt_off0000e2df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DF 10544 bytes
SHA-256: 8cd6c8793474ac9a81c72eaa4bb0d8810bd81b8b3794bc828c85616c9d3391c9
font_03_sfnt_off000106c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C1 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361