Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d0723e33b88b26…

MALICIOUS

PDF

91.2 KB Created: 2022-04-10 15:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: fa337aa0b630b5b1c1aa1b4aa2197d7e SHA-1: 91a9a9f17db8720a3847c7332b357e74d7c977e7 SHA-256: c5d0723e33b88b26a0eb4387c057b577dd56a9f29afd3e139bf42a950035f4da
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=easy%20pop%20songs%20to%20play%20on%20piano%20notes PDF link annotation
    • https://fumifopimon.weebly.com/uploads/1/3/4/4/134464078/digipazetu.pdfIn PDF document text
    • http://www.hausman.eu/images/wyswig_images/file/jogezozewigoxila.pdfIn PDF document text
    • https://zisugopijelides.weebly.com/uploads/1/3/1/4/131438068/vowulujixipedos.pdfIn PDF document text
    • https://tiruzezisuwef.weebly.com/uploads/1/3/4/4/134499189/8586892.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/162341220d9949---98951424315.pdfIn PDF document text
    • http://architettoseneca.com/userfiles/files/xodoposazabamonam.pdfIn PDF document text
    • https://wowimenus.weebly.com/uploads/1/3/4/7/134709331/3691d5bdd02.pdfIn PDF document text
    • https://jupelokuxaw.weebly.com/uploads/1/3/4/6/134601506/wedov.pdfIn PDF document text
    • https://zolowokixo.weebly.com/uploads/1/3/0/7/130738875/9335661.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/b57d946cd105695969359b1799ff4eda/54622483411.pdfIn PDF document text
    • https://jukirabupunux.weebly.com/uploads/1/3/0/8/130874410/8622884.pdfIn PDF document text
    • https://lixobanifalito.weebly.com/uploads/1/3/4/4/134443724/662ec05f9.pdfIn PDF document text
    • https://botironolimuvot.weebly.com/uploads/1/3/1/3/131380397/ritorozafer-vupuje.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16203ecc4ce1dc---beweza.pdfIn PDF document text
    • http://www.prieteniitehnicii.ro/documente/file/taxawupususofabufepuvis.pdfIn PDF document text
    • http://bilmatbasim.com/userfiles/file/wujusetuba.pdfIn PDF document text
    • https://kokuxokuge.weebly.com/uploads/1/3/4/7/134771281/wuwogebemajuzax-vopubu-zanamofomekoweb.pdfIn PDF document text
    • https://zagorjeadventureteam.hr/files/52076220088.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/botiradit.pdfIn PDF document text
    • https://sivakamewodomu.weebly.com/uploads/1/3/4/5/134599263/1854335.pdfIn PDF document text
    • http://cttinteriery.cz/files/upload/files/zarivep.pdfIn PDF document text
    • https://barijenevedi.weebly.com/uploads/1/3/1/4/131438420/giduzufozepogemo.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/71985069837.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_off000100d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D9 17260 bytes
SHA-256: 2ad889a768904c00ec2af3620ee3d5868e06ea93942014127ee5523f95155504
font_01_sfnt_off00012def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DEF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00014606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14606 10424 bytes
SHA-256: 406e18504ca3f9689928ba3102c966844b442512abba53ff60c7ebd3c06840d3