Malicious PDF — malware analysis report

Static analysis result for SHA-256 634dc7b91bb5a89e…

MALICIOUS

PDF

81.2 KB Created: 2022-04-12 15:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 1081b07d357acef10dd94baa071688e2 SHA-1: c10d072a975945d56b1da6754fd729f49a4e92a6 SHA-256: 634dc7b91bb5a89e530eed922dcb4f219ad7040e489a2141a603711cd1691c1c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://norin.co.za/YmrXLWy8?keyword=cuisinart%20burr%20grind%20and%20brew%20stainless%20steel%20coffee%20maker%20reviews PDF link annotation
    • https://bifixebuwo.weebly.com/uploads/1/3/0/7/130776276/kuturevega.pdfIn PDF document text
    • https://talunijepi.weebly.com/uploads/1/3/4/5/134599753/lesofanibi.pdfIn PDF document text
    • http://www.plavanikojencupraha.cz/upload/files/7006533849.pdfIn PDF document text
    • https://pidodogifir.weebly.com/uploads/1/3/1/3/131383649/2033697.pdfIn PDF document text
    • https://kuxanumukamizat.weebly.com/uploads/1/3/4/4/134489101/nitugu.pdfIn PDF document text
    • https://foodexgida.com/uploads/files/sedivumul.pdfIn PDF document text
    • https://openkomm.yussfone-crm.com/userfiles/file/29233005599.pdfIn PDF document text
    • http://888spirits.com/userfiles/file/42874049608.pdfIn PDF document text
    • https://ferowadamo.weebly.com/uploads/1/3/4/5/134593689/ddebf0.pdfIn PDF document text
    • https://bixirugabo.weebly.com/uploads/1/3/0/9/130969405/6196124.pdfIn PDF document text
    • http://firewaterdamagedfw.com/test/fckeditor/uploadfiles/file/54641357776.pdfIn PDF document text
    • http://happinessgown.com/upload/users/files/woweda.pdfIn PDF document text
    • https://vinetiwufo.weebly.com/uploads/1/3/5/3/135305890/siwezoxobonu_sanofomubibupe_dibabazawe.pdfIn PDF document text
    • https://sevizigetumopib.weebly.com/uploads/1/3/4/0/134042829/8813404.pdfIn PDF document text
    • https://xadatazibinul.weebly.com/uploads/1/3/1/4/131483053/woleturejexome.pdfIn PDF document text
    • http://sb555.com/photo/file/gevubo.pdfIn PDF document text
    • http://domadoma.cz/userfiles/file/kiragemejopodolazevabu.pdfIn PDF document text
    • https://folexipasu.weebly.com/uploads/1/4/1/2/141290841/sugaweramanewozis.pdfIn PDF document text
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1622d4d9a3497f---nopogol.pdfIn PDF document text
    • http://hevolta.com/upload/file/62100971002.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216b0415544a---mitalifaxima.pdfIn PDF document text
    • http://ntep2008.com/UserFiles/File/11060226734.pdfIn PDF document text
    • https://pabojigu.weebly.com/uploads/1/3/4/8/134862721/1f489f89ba6.pdfIn PDF document text
    • https://dipabuxirakilat.weebly.com/uploads/1/3/1/0/131071076/802acf5aa381.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_off0000d5cb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d5cb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CB 16764 bytes
SHA-256: bdcd880f706887eb6c95d20855be4aba03a8d1a477c0d6e6f4e7874a88d96a69
font_01_sfnt_off00010167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10167 11336 bytes
SHA-256: ab62220673285221b01a2bb2004abb5df0eefb3a490c6c791f1de8924156e736
font_02_sfnt_off00011bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BFC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1