Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddb7d688cc786d3…

MALICIOUS

PDF

98.5 KB Created: 2021-08-22 03:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 0e7f5f35a079fd17088d2e6fe9d5c58b SHA-1: 9d3c98b39f7f632eec5aa40e777af213db76a4fc SHA-256: 3ddb7d688cc786d335328ee01a028af06cf5ca4747e135d69fdadecb0bc03ab2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://ratsimae.ee/media/contents/file/55425689792.pdf In PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/h8tqko4vkal8dvek0t09hd5smp/81710374076.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1610fea29a6284---nunoxajetibalefexowogod.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b6044b8f2c7---bimemawemurikatu.pdfIn PDF document text
    • http://azs-szermierka.pl/zdjecia/fck/file/69622299840.pdfIn PDF document text
    • http://mnarch.it/userfiles/files/6570015218.pdfIn PDF document text
    • https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/22363439008.pdfIn PDF document text
    • https://alice-immo.com/userfiles/file/fegamawinikotusaxokokum.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16071a3d54d5f2---voveradovenewuvit.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/4t8r4o3o4ogr245rp8669cq582/vazag.pdfIn PDF document text
    • http://bassbasement.org/userfiles/file/gazevoloza.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081935aa573d---zaloxasi.pdfIn PDF document text
    • http://mtecommerce.it/public/news/file/jemalotodekolezikoke.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16074db8843a68---rakubumika.pdfIn PDF document text
    • https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/0fc3e30de2b52d57d6f7f4f970e1938a/wasifuseju.pdfIn PDF document text
    • http://micronforgacsolo.hu/UserFiles/file/bozedadododedolaxa.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/1a41fa3c979468c06a9433dcfc51b018/3906233196.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b87afe45d4a---nusupuxigepika.pdfIn PDF document text
    • http://physiotherapy-warwickshire.com/user_file/file/favugeketanagatipet.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202108140303405066.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=god+of+egypt+full+movie+in+hindi+dubbed+download+300mbPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00014f49.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x14F49 23508 bytes
SHA-256: 0263825880917845ba3ca13ea55581d810fac579aa09abb08cd1a4cc87385291
font_00_sfnt_off0000ee7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7D 11516 bytes
SHA-256: 09f45cf9f83bea9bfb95e274aae74cafe2a9c6ef990a7b5e53b3c44f1f95b611
font_01_sfnt_off00010939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10939 17560 bytes
SHA-256: b140386360aed8db5a0dc640157ee034a1bf3508baf7a4cf1af2595796425e2f
font_02_sfnt_off00013738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13738 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1