Malicious PDF — malware analysis report

Static analysis result for SHA-256 f994eb1c1f3b0fa6…

MALICIOUS

PDF

100.0 KB Created: 2021-12-13 20:06:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 1db11235fb10909f777c01d41fe9216d SHA-1: 24e8d691a4cf97f2515cf82ca164412e2bce7ed0 SHA-256: f994eb1c1f3b0fa6072ac230ef81e4d1f5ec88c56767491e5d147c5fb5b4940c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9784

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://domgr11.ru/uploads/files/xibosopidabavitukugu.pdf In PDF document text
    • http://babyindex.nl/images/uploads/bunosejazilokasuvep.pdfIn PDF document text
    • https://1000families.eu/userfiles/file/wogifir.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/20f79ef86a6ebc14eaac4dc0b95f267b/tupibejimusewibiser.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/m1i9itp3bpe1fo6b1b76h4eup4/82151542968.pdfIn PDF document text
    • http://synowka.pl/galeria/file/rasukegonaduxunolapan.pdfIn PDF document text
    • https://mrpressconsulting.com/UserFiles/file/95888730809.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/00d61307eccbe18325a5aba9159023ea/lokelusanabolunuxono.pdfIn PDF document text
    • http://shangyi-pump.com/uploads/file/230355057842.pdfIn PDF document text
    • http://ger.versa.ru/documents/files/91986077723.pdfIn PDF document text
    • http://yonezawanet.jp/units/24250/zcycom/files/femoxurodagofowez.pdfIn PDF document text
    • https://jecoexports.com/ckfinder/userfiles/files/xibes.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16194779a5d508---xebogiwuma.pdfIn PDF document text
    • https://predial-rua-nova.pt/056-CovadaLua/images-editor/file/soveguzigeketanegilapizob.pdfIn PDF document text
    • https://torgradio.ru/new/files/file/xekinesixupijitiv.pdfIn PDF document text
    • https://landtop.com/filespath/files/20211009023113.pdfIn PDF document text
    • http://dinskayarealty.ru/media/file/dezuxuba.pdfIn PDF document text
    • https://dbjadow.pl/attachments/file/tobuxuven.pdfIn PDF document text
    • http://scuolascifondocortinadolomiti.it/userfiles/files/losojuxe.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/b04d554823b9f78200b6d585111826b4/69924589012.pdfIn PDF document text
    • https://sentralperdana.com/file/12115209636.pdfIn PDF document text
    • http://vasekurzy.cz/userfiles/file/kiwukejoleminuzigeva.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152f893a1203---94872692348.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16135568e2f373---bitudagasititodurez.pdfIn PDF document text
    • http://www.azurwelcomeservices.com/userfiles/file/guzamuwesejewibipetogakib.pdfIn PDF document text
    • https://myoffice.strategygroupglobal.com/uploads/files/toxeloxonogova.pdfIn PDF document text
    • http://tythb.cn/uploadfile/files/serexowogemexosomakali.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=cute+pictures+of+toothless+from+how+to+train+your+dragonPDF 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_off00011a48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A48 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000130e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130E7 20844 bytes
SHA-256: 3d4bfbd522edeb9d4aad6e5dd9f508bb3c848b89c285078ce3cc07bfe057835a
font_02_sfnt_off00016785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16785 11400 bytes
SHA-256: 7ff0912d19db730bdf9e3d23b0ad888a22dfb0ab26e6253600b480deaaa4e8a1