Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe78b6459894687…

MALICIOUS

PDF

80.2 KB Created: 2021-09-04 10:34:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 1dc212447db9dd4bcb8c399c208d83a5 SHA-1: 4b5b5660b3cffa434b03790c582d3dd5f342dda2 SHA-256: cbe78b645989468703828a624f7f221024d40f8f4f40e6319c9254baa9543c27
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9877

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://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160745ea7ad3fd---95815704692.pdf In PDF document text
    • http://cioccolatogallucci.it/userfiles/file/7949595973.pdfIn PDF document text
    • https://egyiksem.hu/uploads/file/jepijunumuzaruxase.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/7rp1q3u8hv04s7qp5gp10ih8k0/zemiboxebavuga.pdfIn PDF document text
    • http://sbsinternationalschool.org/sbsisnew/userfiles/file/44390502004.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16090b36c3570f---30259160282.pdfIn PDF document text
    • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/7c22fc81b0ce3b49233052dead58a930/75461189401.pdfIn PDF document text
    • http://nuk-amro.de/userfiles/file/jaruvaparigozifis.pdfIn PDF document text
    • https://cmetrix.net/ckfinder/userfiles/files/44749228947.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/26240420022.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bb56717fbbf---175179247.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/e4158e49fed7745fcea3e8a850736651/rejis.pdfIn PDF document text
    • https://campermagazine.tv/public/file/tuwanerimit.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b7898cc48c2---zusebenexijexefa.pdfIn PDF document text
    • http://iccj.jp/images/uploads/fckeditor/file/24163934972.pdfIn PDF document text
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160869ebc500a5---68795572086.pdfIn PDF document text
    • https://rybczewice.pl/userfiles/file/65056399495.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093c4d267993---taxasadaxelajajube.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/027e4ce128650a0af88c539e2f3c3b3b/80296096684.pdfIn PDF document text
    • http://kondicionery-vidnoe.ru/upload_picture/file/62722767102.pdfIn PDF document text
    • http://hak-al.com/resimler/files/51954170975.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd241733aa---fuwagu.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/qh70jvoee0j9gfbjjqkd339539/lomogeniwuvedilone.pdfIn PDF document text
    • https://archism.ru/uplcv?utm_term=a+valiant+life+pdf+%E0%B9%84%E0%B8%97%E0%B8%A2PDF link annotation
    • https://mygoaltv.com/ipp/images/uploads/files/87497810299.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_off0000b435.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b435.bin)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB435 18328 bytes
SHA-256: 9bd91a9a7234da2cb68034716044d0c1f8ec99a73d5eaa736fc41e865b5003ee
font_01_sfnt_off0000e26a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26A 10148 bytes
SHA-256: 7c5e77cea1bcee10b4c47a653bf32aa9bafe45f3d1cb2a94f08aeb0ce2ed5ef8
font_02_sfnt_off0000f937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF937 16324 bytes
SHA-256: df84fc4efc9685a88d8a5e93b862332d18f6d83e41d3291e888172e7351d8f83
font_03_sfnt_off00010f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F76 1908 bytes
SHA-256: e1b34b56f766b52dd7f6f1608e19e75f17ced996a683346d6fdfd66d0a8877c1
font_04_sfnt_off0001184a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1184A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1