Malicious PDF — malware analysis report

Static analysis result for SHA-256 634a7a66c46f5422…

MALICIOUS

PDF

76.4 KB Created: 2022-05-20 10:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 63f46cb7b9483c98c5cbf94e2d23be82 SHA-1: de594cd0256d7c6aa631e26af6c859a2911714e1 SHA-256: 634a7a66c46f5422bc9288fba64ecf516791d8373e9f197c13e586bf605fd903
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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=gmat%20official%20guide%202020%20pdf%20%20full%20pdf PDF link annotation
    • https://sakaromef.weebly.com/uploads/1/3/4/5/134507496/reluroxojewep.pdfIn PDF document text
    • https://xugepofu.weebly.com/uploads/1/3/1/3/131383580/sapivivexuzadu_lemipaneres_wudezom_bogetoliveri.pdfIn PDF document text
    • https://xovobinawulum.weebly.com/uploads/1/3/4/8/134883327/nigenonito.pdfIn PDF document text
    • http://megamento.com/_UploadFile/Images/file/34020856151.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621348ad4502a---4141704016.pdfIn PDF document text
    • https://gademivovemoxu.weebly.com/uploads/1/3/1/3/131383546/b18977a2a7.pdfIn PDF document text
    • https://tivizaxif.weebly.com/uploads/1/3/1/3/131381605/3d8277d097f1.pdfIn PDF document text
    • https://xibipoxo.weebly.com/uploads/1/4/1/3/141343751/nilugusufudotunidube.pdfIn PDF document text
    • http://poaglasses.com/uploads/files/202203100646398126.pdfIn PDF document text
    • https://nosuxiseliv.weebly.com/uploads/1/3/4/5/134578333/mazujol-tatare.pdfIn PDF document text
    • http://anquocrealty.com/uploads/image/files/80778176272.pdfIn PDF document text
    • https://mapupuvegov.weebly.com/uploads/1/3/4/7/134712300/d780bd.pdfIn PDF document text
    • https://fuworedevem.weebly.com/uploads/1/4/1/5/141563445/9153692.pdfIn PDF document text
    • http://52963566.com/upload/file/202202020243409776.pdfIn PDF document text
    • https://kaowei.tw/image/files/20220314_155016.pdfIn PDF document text
    • http://brilsports.ro/userfiles/file///92365767142.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/162478a58e225e---moxuvilowuwetiruvop.pdfIn PDF document text
    • https://voxasofipazo.weebly.com/uploads/1/3/1/4/131407247/5268fd9c4.pdfIn PDF document text
    • https://pudafakomixi.weebly.com/uploads/1/3/4/5/134506615/fawewobav.pdfIn PDF document text
    • https://nezodutulep.weebly.com/uploads/1/3/4/8/134883135/0268c29a3.pdfIn PDF document text
    • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/11215695293.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_off0000c249.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c249.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC249 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000da5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5B 18052 bytes
SHA-256: 557f779226addb86b1affaa151e4b9476704420beb2122dd4cdb7fdcbc614525
font_02_sfnt_off000109f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F3 10972 bytes
SHA-256: 7237f8817806d3e9941a9714f2623569d12bc7390411b2a0cd1b7145398b3a54