Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c4fd57dbc07e2a…

MALICIOUS

PDF

78.5 KB Created: 2022-04-13 08:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: fda0f7e87b3e286b335cfaef4cbfbc65 SHA-1: 9fcc833b2462ef0fcd050e8903ee9f4ebdad5767 SHA-256: f0c4fd57dbc07e2a9168dd0f663376142d9082ccfae6731b9cdba1ef5a07f3d6
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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=micro%20mini%20dachshund%20puppies%20for%20sale%20in%20ohio PDF link annotation
    • https://jibigevemur.weebly.com/uploads/1/3/0/8/130873945/gemebabo.pdfIn PDF document text
    • https://birupilanakok.weebly.com/uploads/1/3/4/0/134017156/a87503.pdfIn PDF document text
    • http://sinostandards.net/upload/files/71741268148.pdfIn PDF document text
    • https://pibefugaradaxo.weebly.com/uploads/1/3/1/3/131398186/xised_pekuzisaxo_dotojazetubaju.pdfIn PDF document text
    • https://bewabolome.weebly.com/uploads/1/3/5/3/135347927/jubowisilo.pdfIn PDF document text
    • https://joninotabuxid.weebly.com/uploads/1/3/5/3/135387421/vosew.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/jaxixokafifuwesiperino.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/d5fcv7nh8re7j2lb3l4mqjb4e7/61046745245.pdfIn PDF document text
    • https://nezijolumuka.weebly.com/uploads/1/3/4/0/134016970/ca21566c.pdfIn PDF document text
    • https://encoyun.com/calisma2/files/uploads/7127540662.pdfIn PDF document text
    • https://zagusopiv.weebly.com/uploads/1/3/4/2/134234894/kexowadumudajeke.pdfIn PDF document text
    • https://todifafox.weebly.com/uploads/1/3/4/3/134329955/3899653.pdfIn PDF document text
    • http://brothersconsultingllc.com/kcfinder/upload/files/padomux.pdfIn PDF document text
    • https://gudugobaxav.weebly.com/uploads/1/3/4/5/134500737/62cd3d287d0579.pdfIn PDF document text
    • https://nowimadowa.weebly.com/uploads/1/3/4/7/134705132/7eb9705e1ae09.pdfIn PDF document text
    • https://fowezojufogomod.weebly.com/uploads/1/3/5/3/135307270/eb44147b13.pdfIn PDF document text
    • http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/13490675820.pdfIn PDF document text
    • https://groovinman.com/CWSAP/sites/default/images/file/85182649811.pdfIn PDF document text
    • https://christavedelaar.nl/bestanden/files/11529354982.pdfIn PDF document text
    • https://detectagsafety.com/ckfinder/userfiles/files/zasorepofotoro.pdfIn PDF document text
    • https://mitabepomumo.weebly.com/uploads/1/3/1/8/131872015/6769575.pdfIn PDF document text
    • https://ij-ph.com/admin/SchoolFiles/files/wuxoxesotazoz.pdfIn PDF document text
    • https://mugebixivezir.weebly.com/uploads/1/3/1/4/131484268/wabifezezot.pdfIn PDF document text
    • http://xzavod.com/kcfinder/upload/files/fanepipisumopetojoko.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16225e2f2861c1---binifawaseroxe.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_off0000cb06.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cb06.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB06 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31D 10880 bytes
SHA-256: 38b5bd1919691c6f2d4342eae7fed4be00f05ec133596242b1cbb636eba5440a
font_02_sfnt_off0000fc03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC03 17236 bytes
SHA-256: 94ab6875db8d36454597adb47550184f618c1028d53acf7deacd310e2be6a7cb