Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d11e3f077f9999…

MALICIOUS

PDF

77.4 KB Created: 2022-05-21 06:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: d23a3b8873090c6d56eeb6a980549470 SHA-1: 19f2b414d51db177f6eda578f3e5c29fc8ae703b SHA-256: b5d11e3f077f99991b3f9e05f9b869014b2665ebcda684f2a73426c9316fac7b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=ucb%20comedy%20improvisation%20manual%20pdf%20book%201%20download%20full PDF link annotation
    • https://wexotagupoma.weebly.com/uploads/1/3/2/8/132814474/wanulimobifu.pdfIn PDF document text
    • https://ruregeriwak.weebly.com/uploads/1/3/4/6/134666462/7052579.pdfIn PDF document text
    • https://kajanivok.weebly.com/uploads/1/3/2/8/132814977/2b85d08.pdfIn PDF document text
    • http://happyhanool.com/ckupload/files/gurupofamirefemipat.pdfIn PDF document text
    • https://regapopuro.weebly.com/uploads/1/3/5/9/135964604/xebubaduwud.pdfIn PDF document text
    • https://kajabukege.weebly.com/uploads/1/3/1/3/131379037/kilupajebasa_fisixigarilo.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/5172502193.pdfIn PDF document text
    • https://gunuxaruta.weebly.com/uploads/1/3/4/5/134588955/fevapesirif_mewibe.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/84cea95dee531574a8302b48bbcdbc9f/febamoduju.pdfIn PDF document text
    • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/debik.pdfIn PDF document text
    • https://famudixapakowep.weebly.com/uploads/1/3/4/8/134855218/lafufoledaguzow.pdfIn PDF document text
    • https://xuniwinasifobip.weebly.com/uploads/1/3/5/3/135302293/315ef4.pdfIn PDF document text
    • http://conditum.nl/userfiles/file/88233569673.pdfIn PDF document text
    • http://kachelofen-prommegger.at/50391029093.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/47846391135.pdfIn PDF document text
    • https://nekekijubexofus.weebly.com/uploads/1/3/4/5/134587401/5412386.pdfIn PDF document text
    • http://ildongwire.com/userfiles/file/37976650931.pdfIn PDF document text
    • http://divinenine.net/userfiles/file/danidewufofixi.pdfIn PDF document text
    • http://schokozentrale.de/idata/21841855034.pdfIn PDF document text
    • https://vakonawokedoze.weebly.com/uploads/1/3/4/5/134522954/e95c031.pdfIn PDF document text
    • https://sogelec-eng.com/files/ckfinder/files/81825958122.pdfIn PDF document text
    • https://nemaxalifaxibox.weebly.com/uploads/1/3/4/6/134627725/4c0b4ba1d68e72.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_off0000c67d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c67d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67D 17220 bytes
SHA-256: 6a3091deb04cf29fc52d2279cabc40c529d336ecc745343af9e0f3a4ac190caa
font_01_sfnt_off0000f395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF395 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BAC 11440 bytes
SHA-256: c5a7b969727aa3a87fae5c82711561976c2382d90742d44b0198ee8f739f5373