Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a16be021956486…

MALICIOUS

PDF

102.3 KB Created: 2022-03-29 18:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: c6ebce5f17186f08399b246a0c4d096e SHA-1: 1c2521d2e992968436dccfd7ce25a34966558257 SHA-256: 18a16be02195648671328d64b9fec2232488170bff9aed4f299d5866fefe8dfc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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 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://bididanigatozum.weebly.com/uploads/1/3/4/3/134314142/6295116.pdf In PDF document text
    • https://photojet.bg/userfiles/file/74740838632.pdfIn PDF document text
    • https://espiber.cl/images/uploadedimages/file/54834782684.pdfIn PDF document text
    • http://marisqueandopremios.com/campannas/file/fatevemaxef.pdfIn PDF document text
    • http://sreecollegeofpharmacy.com/admin/kcfinder/upload/files/pizez.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/31791726928.pdfIn PDF document text
    • https://otterdisplay.com/userfiles/file/14590326401.pdfIn PDF document text
    • https://jelezasi.weebly.com/uploads/1/3/5/3/135347821/rifuranoloju_pisufubusutu.pdfIn PDF document text
    • https://nikolettacukraszda.hu/images/fck/files/24708600493.pdfIn PDF document text
    • https://phs1267.com/singhania/downloads/file/tewexogesutomotuwebiki.pdfIn PDF document text
    • http://funkyspa.net/ckfinder/userfiles/files/51194873539.pdfIn PDF document text
    • https://mesovozilepako.weebly.com/uploads/1/3/4/5/134588792/6399165.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/86630331787.pdfIn PDF document text
    • http://www.terresdescaraibes.fr/file/vupisus.pdfIn PDF document text
    • http://gemaeldeundobjekte.de/uploads/files/8751881073.pdfIn PDF document text
    • https://govalusazun.weebly.com/uploads/1/3/5/3/135325024/3332757.pdfIn PDF document text
    • https://daqushop.id/upload/files/14615559410.pdfIn PDF document text
    • https://ziridizozavixik.weebly.com/uploads/1/3/4/4/134400570/b7eafe55f1940e.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/lutifokazidotox.pdfIn PDF document text
    • https://norin.co.za/YmrXLWy8?keyword=farewell%20my%20lovely%20synopsisPDF link annotation
    • 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 (stream_009_off00015d0f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00015d0f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00015d0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x15D0F 25420 bytes
SHA-256: 90436a370af93f00b304719936893916010a3ea821653717236a29f483d94053
font_00_sfnt_off0000ffe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE7 18028 bytes
SHA-256: 02387676bfae085fc7bad38fc0ecd2f89218c3ce8aa6e65f00eb917b5783ea30
font_01_sfnt_off00012e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E56 10560 bytes
SHA-256: 677c914385dca29c5efcf9499df4e280da38ef6d3e88524ae887338041841365
font_02_sfnt_off00014671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14671 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336