Malicious PDF — malware analysis report

Static analysis result for SHA-256 564bba204ced51be…

MALICIOUS

PDF

125.9 KB Created: 2021-01-08 16:13:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8468ae7616c899b2a3a9d4ac9f662ffb SHA-1: 651b84db63898680f9baa374d349f5ffc08fd6e3 SHA-256: 564bba204ced51befa24f23ee44c90bcb5c1fdb9340c8656c0c22abab7fa8bdb
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm designed to redirect users to malicious content. The embedded URLs and the heuristic findings strongly indicate a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=agenda+apps+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371806/normal_5fbbc9789bd6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487192/normal_5fe9966c74adf.pdfIn PDF document text
    • https://latujajadaf.weebly.com/uploads/1/3/4/5/134593938/2922830.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391896/normal_5faf0e7b0fee0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474985/normal_5fc2ce00d44e8.pdfIn PDF document text
    • https://cdn.sqhk.co/febutatesu/0ifRjcU/wozuwobaviwetir.pdfIn PDF document text
    • https://kutumamam.weebly.com/uploads/1/3/4/8/134893394/xufatekuzogela.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498868/normal_5fdfab3270af2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389809/normal_5fa5973d6bc45.pdfIn PDF document text
    • https://lisefemibumosu.weebly.com/uploads/1/3/4/3/134339955/farukerisajusa.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/xegejiv_noraru_zonovoduborebo.pdfIn PDF document text
    • https://cdn.sqhk.co/wutalididow/jMjbhjS/muwuxumed.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/cc5e13ae-2fc1-49ae-92a2-23f9c385dda8/zipabuvaromeperalura.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_off0001b236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B236 5084 bytes
SHA-256: fd21cd31c99e8e8121c9cf34dfa42ec749b1dc70226ddaa0e98b290c488ac655
font_01_sfnt_off0001c390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C390 11648 bytes
SHA-256: 958f40dd758ef204e3e29222a24b39aeee612415f06273802bbe0eb8a6712077

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