Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c0a7e7a2e6b5b8c…

MALICIOUS

PDF

73.9 KB Created: 2020-11-14 19:41:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6faf8a997aab090bb18ad107e11cd07a SHA-1: d919875633a42df6a9cf0f8897f9a14d972e7dfc SHA-256: 8c0a7e7a2e6b5b8ca3bd90ffa1f0c86c7090192f225cd0392a92455d7876f133
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam and phishing. The heuristic PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK indicate a link farm designed to redirect users, likely to a malicious site. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing and trojan activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/aws?utm_term=annadata+movie+song PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405194/normal_5f96822e4c9c4.pdfIn PDF document text
    • https://bepikasubezitix.weebly.com/uploads/1/3/4/3/134325559/fejelagupuline.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_5f934750917b0.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/ganepon-fadogi-nerere-dusij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9028d5e-6dc0-4508-a4cf-d1483d1b2ee2/leluzitu.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/bacterial_cell_wall_vs_plant_cell_wall.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac54ed87-095b-470a-bbe5-69e49224807d/bakipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ebd2659-dce0-45b3-8b71-f16b18609c03/63804714844.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/50978448549.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf8a6fde-e901-4098-bdd2-7eb2617017a3/video_merger_app_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/lake_belton_texas_fishing_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf779c5c-f0e7-4e99-8161-c9befdc72bd2/69445217526.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F8 5068 bytes
SHA-256: 70e6ed66a6586834916c40c4c3a4b2cbd6b229f1b3a429ba62d764da6f6bcad5
font_01_sfnt_off0000f532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF532 11168 bytes
SHA-256: b70c218434361feb9e7a3681a1e304d1142a8806596c6b0de4cc8bf1efcebaa0

Open this report in the interactive analyzer, or submit your own file for analysis.