Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d826cc27fe1e3ac…

MALICIOUS

PDF

111.2 KB Created: 2021-10-09 16:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: fcdf31d71f4b51a856c098f3903eab35 SHA-1: 26a7567e1d0c4eb4c4a0a77e2926b9eebb3e1629 SHA-256: 5d826cc27fe1e3ac3d3257de83e91d35e3b3b850ce1e789a53ad2c68bafad01e
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9863

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://futimisdev.com/userfiles/file/82672238382.pdf In PDF document text
    • https://stormester.no/files/file/71108176231.pdfIn PDF document text
    • http://allergya.news-read.com/upload/files/1246331031.pdfIn PDF document text
    • https://interior-mark.com/ckfinder/userfiles/files/ximomenavogipijodunibej.pdfIn PDF document text
    • https://bwhe.in/ckfinder/userfiles/files/20894793394.pdfIn PDF document text
    • http://sola-brothers.com/userfiles/file/zugosokuxolamidemusebim.pdfIn PDF document text
    • http://ottotech.center/userfiles/file/37330382845.pdfIn PDF document text
    • http://immobilieninvestors.com/userfiles/file/kulikafudaniso.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613176693c1d5---12670194119.pdfIn PDF document text
    • http://loveperfectionschool.com/upload/file/fixap.pdfIn PDF document text
    • https://andhimazhai.com/images/files/ziwez.pdfIn PDF document text
    • http://khonggianxua.samdigroup.vn/app/webroot/upload/files/71645864124.pdfIn PDF document text
    • https://inunekocp.jp/mailmagazine/upload/files/ludamegiwuwu.pdfIn PDF document text
    • http://www.giuseppe.ru/ckfinder/userfiles/files/2030038855.pdfIn PDF document text
    • http://derkwoo.com/upload/editor/files/wabewasebe.pdfIn PDF document text
    • https://dortmundpools.com/contents/files/kidirexaxojumaripot.pdfIn PDF document text
    • http://meimagedance.tw/ufiles/files/zetur.pdfIn PDF document text
    • http://poaglasses.com/uploads/files/202109240733106935.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161574f073fbe8---danufoxudolozawezotefaro.pdfIn PDF document text
    • https://freebcard.com/ckfinder/userfiles/files/kosar.pdfIn PDF document text
    • https://profitaler.com/UserFiles/file/98142835387.pdfIn PDF document text
    • http://c2ctrading.org/cms_upload/files/gedafiziwubok.pdfIn PDF document text
    • http://plafondchauffant.fr/img/user/file/xutiparewavosaj.pdfIn PDF document text
    • http://aromaonly1.com/yamituki-n/uploads/files/82980146196.pdfIn PDF document text
    • https://quangtriasianwindow.com/uploads/image/files/80018629686.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614806f3e5623---wigovawozowe.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614bfd054b0ec---82075423385.pdfIn PDF document text
    • http://tensoinox.com/userfiles/files/83664389927.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=high+school+musical+3+just+wanna+be+with+youPDF 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_off000145a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145A4 21092 bytes
SHA-256: 4c94dda19420a585b542f1c190669d94cf18063912d554a4c146a8dbfde95de0
font_01_sfnt_off00017c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17C08 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001941f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1941F 11308 bytes
SHA-256: c3019cb9551235d2ed345d183fc81c0f8db21c6630375fad4a3f5c64b5065274