Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddad2cc6c787c47…

MALICIOUS

PDF

87.3 KB Created: 2021-08-02 13:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 50621fc349d387ae2f04bdd79c2a85f3 SHA-1: 8fe47c175bf7b2411d6afeef65e0800c71c248d2 SHA-256: 3ddad2cc6c787c47cfe430825f6030f4d6e49b4680b5bb4b3676867f33f22ffe
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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 http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16083dff5f3979---xugiremasuvajikarorikipod.pdf In PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/8af30ceca0be8d85656554dded652cee/wafisip.pdfIn PDF document text
    • http://zuche0551.com/upload/file/67585447122.pdfIn PDF document text
    • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/96evj7arerpo13oeub08ngo786/21560781438.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/l0mcjlh9fo14a8fsbd468uo4u6/28999131511.pdfIn PDF document text
    • https://limsurempat.com/contents//files/jejarugulovexivukuzemitus.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb66333dc2---34448260962.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/57dd5c83757f21926171d80a7e0e67a0/86040989155.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/39eef5743d2f4e5110ee570f1aa56e81/muwelaxelizisobiber.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160761fd2edd28---suxubi.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f43e3fc1c---12793544165.pdfIn PDF document text
    • https://ascinfratech.com/clientprojects/trading/file/71202762553.pdfIn PDF document text
    • http://nawooelcs.com/upload/userfiles/2021/07/files/210710070321.pdfIn PDF document text
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f395ea8f9ad---jojuvefuvekoluzavuder.pdfIn PDF document text
    • http://speakingaboutnetworking.com/ckfinder/userfiles/files/selonevu.pdfIn PDF document text
    • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/h435o4hng85rdpptd1rvkc28el/tetuserixitotifuniga.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cfb41c02a---14465438997.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/bezerovikeludewibamonudoj.pdfIn PDF document text
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/hm24svg59bta239dmpi95gsbes/vumojisiwumewemes.pdfIn PDF document text
    • http://austral-immo.com/userfiles/files/56570583975.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be3721e99b0---93006305771.pdfIn PDF document text
    • http://www.morrisjones.co.uk/EditorImages/file/fukepi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=trigonometry+word+problems+worksheet+mathbitsPDF 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 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_off0000eec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC8 11232 bytes
SHA-256: 7a8c35796d102a08d96162c09f01db46bd22090f5aec063a44e6dbc23a5a12b6
font_01_sfnt_off00010886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10886 17560 bytes
SHA-256: 3e3c6a72ff5532915d471e5a91e14348459d82010dc623329b239ee4c6448473
font_02_sfnt_off000136e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136E9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1