Malicious PDF — malware analysis report

Static analysis result for SHA-256 af255d19c8f71fdd…

MALICIOUS

PDF

77.0 KB Created: 2022-03-27 21:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: c1463d8bd445c60454fb570a1844e543 SHA-1: b0a35a1075600962bd0bf62f591203421da39508 SHA-256: af255d19c8f71fddf132ef311d5ce844b31067182d10c9af73260cc2500c7c06
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://yubit.co.za/YmrXLWy8?keyword=a%20midwife PDF link annotation
    • https://weranatowo.weebly.com/uploads/1/3/1/4/131408071/2705321.pdfIn PDF document text
    • https://robesiladobaluj.weebly.com/uploads/1/3/0/8/130813577/9131139.pdfIn PDF document text
    • https://linizudozurori.weebly.com/uploads/1/3/4/6/134640128/melilowikilowut_nijavabisib_kosipojumebuxob_zepap.pdfIn PDF document text
    • https://sibozigoguxo.weebly.com/uploads/1/3/0/9/130969143/5758323.pdfIn PDF document text
    • https://giwisosolu.weebly.com/uploads/1/3/4/7/134752077/3d52954.pdfIn PDF document text
    • https://sowovejapa.weebly.com/uploads/1/3/4/7/134709895/32ad50d22a91cf.pdfIn PDF document text
    • https://tekemuwuva.weebly.com/uploads/1/3/0/7/130775778/1e95096.pdfIn PDF document text
    • https://sinidagiritab.weebly.com/uploads/1/3/5/3/135386058/c34c934dc647.pdfIn PDF document text
    • https://pebitazoma.weebly.com/uploads/1/3/4/8/134849778/4d8a40.pdfIn PDF document text
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/6269926.pdfIn PDF document text
    • https://ranuxibat.weebly.com/uploads/1/3/4/5/134595997/b8abdfe9.pdfIn PDF document text
    • https://poxusesemeli.weebly.com/uploads/1/3/4/4/134462398/tugarajulo-lulawa.pdfIn PDF document text
    • https://jajotijodagiwox.weebly.com/uploads/1/3/1/3/131384424/78ad62b37.pdfIn PDF document text
    • https://reserekeluzor.weebly.com/uploads/1/3/4/7/134721257/pujene.pdfIn PDF document text
    • https://sezenoxesakibek.weebly.com/uploads/1/3/0/7/130740551/4369975.pdfIn PDF document text
    • https://xepezexitig.weebly.com/uploads/1/3/0/9/130969834/jugumusup-miwanum-lavokave-tegez.pdfIn PDF document text
    • https://nabapobu.weebly.com/uploads/1/3/7/5/137501246/bojijupos.pdfIn PDF document text
    • https://lutitisuputusi.weebly.com/uploads/1/3/1/4/131437948/8734891.pdfIn PDF document text
    • https://xivupofe.weebly.com/uploads/1/3/2/6/132681771/kiwukipokut_nenaxete_gefadaje_kojipowozumer.pdfIn PDF document text
    • https://zukugobewumebol.weebly.com/uploads/1/3/4/0/134017275/sabujigabez_nogax_subenuloveb.pdfIn PDF document text
    • https://rudusixan.weebly.com/uploads/1/3/0/7/130775573/1636349.pdfIn PDF document text
    • https://pulosonimoge.weebly.com/uploads/1/3/0/7/130739093/birasuxunamaso_vikilijapuf_kagitotixojo.pdfIn PDF document text
    • https://zutuvolesem.weebly.com/uploads/1/3/0/7/130775525/606b0639.pdfIn PDF document text
    • https://xigodawi.weebly.com/uploads/1/3/4/4/134464905/jaxiro.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_off0000caaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAF 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000e14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14E 16336 bytes
SHA-256: bc3e4b28575d3c020ad1eaa97e6704c3b7d21f3301326acd916e7e91eebc2cf3
font_02_sfnt_off00010ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA3 10852 bytes
SHA-256: 3cc616cae46c08b198c4f79d8db7abacb4deacaccb99aaf7c3f680f388b3e0b0

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