Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d861e4cebc69fb7…

MALICIOUS

PDF

94.5 KB Created: 2022-03-26 16:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 33d9e7fea118b2b732d4cbc125342b25 SHA-1: 7834aba7e2933f0c8a25d767eef66887fed366ac SHA-256: 5d861e4cebc69fb79c500f441b31acbfc1bb826bb6181e119ad40ad82f063a73
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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.
  • 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%20study%20korean%20fast PDF link annotation
    • https://vurifupilubat.weebly.com/uploads/1/3/4/4/134495287/bipodulerekogob-kigonifibuxari.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/wejidejiwev-sodipinevoje-xebizowatog.pdfIn PDF document text
    • https://gipulafu.weebly.com/uploads/1/3/4/4/134442702/xidodulegivod.pdfIn PDF document text
    • https://botofemuko.weebly.com/uploads/1/3/4/8/134891122/d9ca0d1c.pdfIn PDF document text
    • https://ludebopukum.weebly.com/uploads/1/3/1/3/131380916/4416663.pdfIn PDF document text
    • https://zakazorexan.weebly.com/uploads/1/3/1/4/131407051/pifirij.pdfIn PDF document text
    • https://retixuzekuzexaw.weebly.com/uploads/1/3/4/3/134375726/jabima.pdfIn PDF document text
    • https://pujofolowax.weebly.com/uploads/1/3/4/6/134669504/jixuwotu.pdfIn PDF document text
    • https://mawebugejememed.weebly.com/uploads/1/3/4/5/134599942/3314318.pdfIn PDF document text
    • https://viforiler.weebly.com/uploads/1/3/0/8/130874197/wipog_fukelunitip_dujeso_lofidil.pdfIn PDF document text
    • https://zepudelewow.weebly.com/uploads/1/3/2/6/132682561/donawomuwudi.pdfIn PDF document text
    • https://mufaguzesevulet.weebly.com/uploads/1/3/2/8/132814956/nurivorokuvez-magutotowenavu.pdfIn PDF document text
    • https://rowenimurowa.weebly.com/uploads/1/3/4/5/134501525/9484283.pdfIn PDF document text
    • https://xixolediz.weebly.com/uploads/1/3/4/5/134513169/duletapofopasetizal.pdfIn PDF document text
    • https://mifuvepezomiluf.weebly.com/uploads/1/3/4/3/134312517/6964768.pdfIn PDF document text
    • https://putujagojosid.weebly.com/uploads/1/3/0/7/130738675/4627553.pdfIn PDF document text
    • https://mejoraxu.weebly.com/uploads/1/3/1/3/131380998/moxab-lusiragukagixuw-mipabox-pixemajivim.pdfIn PDF document text
    • https://meronikam.weebly.com/uploads/1/3/4/7/134705372/kubalatijorijuxegaw.pdfIn PDF document text
    • https://birinubawode.weebly.com/uploads/1/3/6/0/136026057/kejaxizogef-gagowedala-gozodafesuw-vexutegosafosi.pdfIn PDF document text
    • https://roguxewotare.weebly.com/uploads/1/3/4/3/134319265/6c3021edad610.pdfIn PDF document text
    • https://sinosopad.weebly.com/uploads/1/3/4/8/134892142/4acb2a952b5b4ce.pdfIn PDF document text
    • https://siradukezud.weebly.com/uploads/1/3/4/7/134711866/6106736.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10643 16908 bytes
SHA-256: f636932cd649baead4aedfdadcf37004cb1676d453a4aacfa1cee4533376e0f7
font_01_sfnt_off00013201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13201 10592 bytes
SHA-256: 9fa38cad2245b863d6c9ba9ead70c140574cd70a1f905dff307ed5858c7c40ec
font_02_sfnt_off00014a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A68 1780 bytes
SHA-256: fa5f2bb6fc7f2ba8b09e15321a996157283d5c69c41cde8db0811d043c877a1d
font_03_sfnt_off000152c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152C3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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