Malicious PDF — malware analysis report

Static analysis result for SHA-256 7938d5b94134eb5b…

MALICIOUS

PDF

87.9 KB Created: 2021-10-08 23:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 74b77fff099fe3ea72bd158334c4aadc SHA-1: cc9d1c1cb11e5d22c734d610731c0044a9e5d31d SHA-256: 7938d5b94134eb5b8b21a2778a5426bac8b5bb7012fbf171cda34df1e7ca0fdc
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://queure.ru/uplcv?utm_term=who+is+whose+or+who%27s PDF link annotation
    • https://qualitygums.com/userfiles/file/mexosinibot.pdfIn PDF document text
    • https://ewdel.cz/ckfinder/userfiles/files/29215737362.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4bcd5097fb5fbee5b9fc59793dd33be2/jafapatu.pdfIn PDF document text
    • http://mweb.cz/images/file/60259866449.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20210907135102189.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/e38b024d3051d33a28bf36baf90a30c4/8383819265.pdfIn PDF document text
    • http://geluidsadviesnederland.nl/ckfinder/userfiles/files/45086159589.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/3beq1lalnau9bjj85bujfk5la7/63902443071.pdfIn PDF document text
    • http://gocoachfox.com/userfiles/file/65257254610.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/budavalogobufu.pdfIn PDF document text
    • http://elencostruzioni.it/userfiles/files/11718050822.pdfIn PDF document text
    • http://cantinachitarra.it/userfiles/file/44212808357.pdfIn PDF document text
    • http://sicompk.com/survey/userfiles/files/vozogufokiv.pdfIn PDF document text
    • http://pwharrison.com/userfiles/file/vetukozitedi.pdfIn PDF document text
    • https://soenen-pneus.com/upload/file/rawalujevi.pdfIn PDF document text
    • http://sakesushilakehavasu.com/uploads/files/malofuf.pdfIn PDF document text
    • http://garage-ys.info/js/upload/files/goxotapazelata.pdfIn PDF document text
    • http://dailygiasi.com/uploads/userfiles/file/88953006813.pdfIn PDF document text
    • http://savemaxint.com/files/file/19520703141.pdfIn PDF document text
    • https://guanlai.tw/uploads/files/202110041735038093.pdfIn PDF document text
    • http://onlineticketreview.com/images/file/77335852451.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/6452a22e2ce462c4527b7cf2ffa9fd0f/binatofiferiboxewawugur.pdfIn PDF document text
    • http://suncitygroup.ir/basefile/suncitygroupir/files/70258556922.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/8594383629.pdfIn PDF document text
    • http://www.kevimotor-rock.hu/files/files/vekukiv.pdfIn PDF document text
    • https://presstone.hu/userfiles/file/jexekokivi.pdfIn PDF document text
    • http://hindustanadvancedsolution.com/t/tutorfirm/uploads/ck/files/93479793030.pdfIn PDF document text
    • http://lsphc.com/userfiles/file///noravibosejebore.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 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_off0000ebf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001040b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1040B 9908 bytes
SHA-256: 80457747323e9fbd8a65064f36235fe3435abe9a65633b2352ea586b7fdc6d10
font_02_sfnt_off00011a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A24 21204 bytes
SHA-256: 1255306f86efe2eaeeb97f059115abc2b884d0c7532b9dab4597170189ba2361