Malicious PDF — malware analysis report

Static analysis result for SHA-256 f871abff97274c76…

MALICIOUS

PDF

79.0 KB Created: 2022-04-09 03:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 36343a11956ec035b8a297caaaafc816 SHA-1: dd88c22159b1e9d8cf9f6a8effee99d82954a06f SHA-256: f871abff97274c768465649ce6aa18b7f00142eee1bd141e574e470361aa642d
186 Risk Score

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.
  • 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://podar.co.za/YmrXLWy8?keyword=the%20book%20of%20birthdays%20july%2027 PDF link annotation
    • https://pajufesafirijax.weebly.com/uploads/1/3/1/4/131406985/299a9.pdfIn PDF document text
    • https://linekepev.weebly.com/uploads/1/3/4/0/134041162/sepikowixuzisu.pdfIn PDF document text
    • http://durgaenergy.com/assets/kcfinder/upload/files/19003865608.pdfIn PDF document text
    • https://dikekivex.weebly.com/uploads/1/3/0/7/130775400/7965107.pdfIn PDF document text
    • http://tajesink.com/Uploadfiles/files/37486933749.pdfIn PDF document text
    • https://jerupixudenaxi.weebly.com/uploads/1/3/1/4/131437293/poniligom-noruvaviteki-nexezobuvu.pdfIn PDF document text
    • http://epilia.com/upload/FCKEditorfile/74886046085.pdfIn PDF document text
    • https://mitebisaxu.weebly.com/uploads/1/3/5/3/135395238/e80293bb4774.pdfIn PDF document text
    • http://rtm-plus.com/ckfinder/userfiles/files/suredogefesegazedofimumon.pdfIn PDF document text
    • https://demo-universal.order-pro.com/ckfinder/userfiles/files/45945733436.pdfIn PDF document text
    • https://jomozupofaku.weebly.com/uploads/1/3/4/3/134399246/tasun.pdfIn PDF document text
    • https://vapaniwagivu.weebly.com/uploads/1/3/4/4/134442769/06fc6.pdfIn PDF document text
    • http://lexprikson.com/admin/style/images/userfiles/file/79000317335.pdfIn PDF document text
    • https://tuzunogosur.weebly.com/uploads/1/3/0/8/130815213/jabedaboximiwigewuko.pdfIn PDF document text
    • https://strechybenesov.cz/content/80613296278.pdfIn PDF document text
    • https://gheysenreal.com/uploads/files/romeladojilajugapu.pdfIn PDF document text
    • https://famojiwogupoj.weebly.com/uploads/1/3/2/3/132303340/develuzazakukufatosi.pdfIn PDF document text
    • http://srimmigrationconsultants.com/kcfinder/upload/files/romononiju.pdfIn PDF document text
    • https://fojugifobuko.weebly.com/uploads/1/3/5/3/135328464/f9584d205d.pdfIn PDF document text
    • http://jyotiacademicpress.org/uploads/file/dawul.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA2 17208 bytes
SHA-256: e4e7b1d9de5ec893b5584970b21d4d5198143d2202db994b14bf8ee3789dd647
font_01_sfnt_off0000fc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC71 11056 bytes
SHA-256: 00bf63d494f1ae2f885876f2017fd23a5c4af5a01bcdd23aecab2de941918c0f
font_02_sfnt_off0001166f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1166F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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