Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fca065fe6ba7d7…

MALICIOUS

PDF

78.7 KB Created: 2022-04-06 00:02:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 85eaa9a701ce183fe4683be9e320833f SHA-1: 2be8fc3eacddfc61ac1e533773902538216419f6 SHA-256: a4fca065fe6ba7d77f4245ee0b9fed9c7a1407851d5d79cdea6376c62ae006a6
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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.
  • 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://yoyep.co.za/YmrXLWy8?keyword=how%20to%20connect%20mac%20mini%20to%20wireless%20keyboard PDF link annotation
    • https://newepedizod.weebly.com/uploads/1/4/1/3/141375304/kiladuputedu_juresorunajoxol_linegamoregawu.pdfIn PDF document text
    • https://revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16227fb34d1b2b---82039289591.pdfIn PDF document text
    • https://vijejomikozo.weebly.com/uploads/1/3/4/6/134668467/4266840.pdfIn PDF document text
    • https://farunekigevizaj.weebly.com/uploads/1/3/5/9/135976182/lafixerudaremesad.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/62326401218.pdfIn PDF document text
    • https://pedagojewixa.weebly.com/uploads/1/3/1/3/131398360/dodusozeresigutotef.pdfIn PDF document text
    • https://kaxizaro.weebly.com/uploads/1/3/5/3/135349404/6815924.pdfIn PDF document text
    • https://ruwiwiteviporiz.weebly.com/uploads/1/3/4/7/134767377/xurusepodo-novoto-disozoxizufav-pelevenapije.pdfIn PDF document text
    • https://kanemonel.weebly.com/uploads/1/3/5/3/135319287/6981d95b5df.pdfIn PDF document text
    • https://vegujuzemev.weebly.com/uploads/1/3/4/0/134017506/9285493.pdfIn PDF document text
    • https://tuganokume.weebly.com/uploads/1/3/1/4/131452880/disezeruwewiwesef.pdfIn PDF document text
    • https://xovobinawulum.weebly.com/uploads/1/3/4/8/134883327/67c31d4a2caf.pdfIn PDF document text
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/02ec2.pdfIn PDF document text
    • https://jepigosewuva.weebly.com/uploads/1/3/2/3/132302921/58fe35ebb23.pdfIn PDF document text
    • https://xusuzipurojovup.weebly.com/uploads/1/3/4/3/134325257/2671121.pdfIn PDF document text
    • https://felelitujafi.weebly.com/uploads/1/3/5/3/135392562/49ababf99b3a.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000cf90.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cf90.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF90 10952 bytes
SHA-256: b1eeaed3135bc2359cbe57e0becc7f281c7bc8fdd857550ea68a699effcafda1
font_01_sfnt_off0000e8f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F2 17096 bytes
SHA-256: 20648e91723fe574005640c4ed2d9a5891d363c045dcf97766e9e8bff88176c5
font_02_sfnt_off00011584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11584 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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