Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa81fc0e4abaf785…

MALICIOUS

PDF

86.1 KB Created: 2022-05-15 04:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 77ce9a384294d1229a9e254b8ff56543 SHA-1: 3837011749eda2d852a5b4be182dc0357b2963ba SHA-256: aa81fc0e4abaf7855efa7e07a3b2bb9c49af4a9cc0ed4143d257e4f9a561ed62
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cafij.co.za/XSRYdR1H?utm_term=manual+machinist+jobs+bc+alberta+canada+today+news PDF link annotation
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/febowagazosujag.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/toles.pdfIn PDF document text
    • https://bodzlomu.com/userfiles/file/2372362396.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/9398803602.pdfIn PDF document text
    • https://tizukusijevawus.weebly.com/uploads/1/3/4/4/134454617/xuwowakojajub.pdfIn PDF document text
    • http://cpgny.com/userfiles/files/87634379588.pdfIn PDF document text
    • https://maconlux.lu/userfiles/files/jigijaged.pdfIn PDF document text
    • https://grupahatak.pl/admin/_fck_files/file/resupubijaduveriri.pdfIn PDF document text
    • https://legunumazonum.weebly.com/uploads/1/3/4/4/134455594/837649ad974f.pdfIn PDF document text
    • https://tosofovopige.weebly.com/uploads/1/3/3/9/133998067/lubarosagedar.pdfIn PDF document text
    • http://familie-schiecke.de/images/file/gokit.pdfIn PDF document text
    • http://footstepfloor.com/upfiles/files/65366855700.pdfIn PDF document text
    • http://travelweeklearningcenter.com/app/webroot/upload/files/4238838355.pdfIn PDF document text
    • https://gazoxawirola.weebly.com/uploads/1/3/4/5/134588870/a35b5438e872.pdfIn PDF document text
    • https://zoxilufikulub.weebly.com/uploads/1/4/1/4/141408793/cbddbab.pdfIn PDF document text
    • https://www.alitec.es/js/ckfinder/userfiles/files/53529761298.pdfIn PDF document text
    • https://tdh-europe.org/files/files/wukezijabixugitiluzegokit.pdfIn PDF document text
    • http://daiichitravel.com/uploads/news_file/gukif.pdfIn PDF document text
    • https://st-stephens-church.com/upload/File/tuniwumikosidudi.pdfIn PDF document text
    • http://www.derbysignandgraphics.com/uploads/file/32384440636.pdfIn PDF document text
    • https://www.afoa.org.ar/backend/ckfinder/userfiles/files/17139117336.pdfIn PDF document text
    • http://kapitan.eu/upload/files/81023343548.pdfIn PDF document text
    • https://bozetefaz.weebly.com/uploads/1/3/4/7/134733050/titasar.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/26300640047.pdfIn PDF document text
    • https://windsbs.biz/files/file/pejebevodijelawetusetifuz.pdfIn PDF document text
    • https://dibakojiri.weebly.com/uploads/1/4/1/3/141317434/womojelafexi.pdfIn PDF document text
    • https://nerutaraludu.weebly.com/uploads/1/3/4/6/134672403/disopekaw_kepuzefuse.pdfIn PDF document text
    • https://mofafodoler.weebly.com/uploads/1/3/0/8/130874416/veligosusemufuxu.pdfIn PDF document text
    • https://bovexojegej.weebly.com/uploads/1/3/4/4/134481742/wibadatipum.pdfIn PDF document text
    • http://www.otevrenysklep.cz/ckfinder/userfiles/files/karuvid.pdfIn PDF document text
    • https://mibugekokedepi.weebly.com/uploads/1/3/2/6/132682655/6178b0c.pdfIn PDF document text
    • https://roxomikanu.weebly.com/uploads/1/3/0/8/130873860/fotutokalotopusopez.pdfIn PDF document text
    • https://niwupusig.weebly.com/uploads/1/3/1/4/131438062/muxinu.pdfIn PDF document text
    • http://tw-sincere.com/upfiles/editor/files/pabadekabidajad.pdfIn PDF document text
    • https://betirowi.weebly.com/uploads/1/3/4/6/134661799/2111138.pdfIn PDF document text
    • http://harmony-stone.info/js/kcfinder/upload/files/josorubekidon.pdfIn PDF document text
    • https://gokebapin.weebly.com/uploads/1/3/5/3/135320588/jexuwemir.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_off0000e9d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D4 11196 bytes
SHA-256: 81489b35294cb086e36afeab1027dfa96db7967fa40c98a238c7dc63d1d5167e
font_01_sfnt_off000103db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103DB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BED 16620 bytes
SHA-256: 0ba7ddcff44fa328c9db23a537fac215a4b109ecd6c115ae6dc03781d776891e