Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b6c1f4d56aa76c…

MALICIOUS

PDF

89.0 KB Created: 2021-07-20 03:25:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 83730e2a0b9cacb6fe8c278a7e3f2a84 SHA-1: 4c19c1abcd1577f1bd71e303b4d646e220ea218f SHA-256: 72b6c1f4d56aa76c83a2a8fe53462f3a85b382006c16f8f88f0eb34e129817ca
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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 http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7cf0450f58---xejumebupimasasusa.pdf In PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/9e7e54d48dfe26316aef80ffd91fb4d5/nisej.pdfIn PDF document text
    • https://webmenuplus.com/images/file/98499653763.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082821043d30---sovokijupazifaguded.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91c0bf0d4---bewotadoka.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/dhh2925ghatn2srrcq0og3mtui/33289585420.pdfIn PDF document text
    • http://optikametuje.cz/userfiles/file/wizezazojizanexisejilu.pdfIn PDF document text
    • http://batiment-tunisie.com/userfiles/file/75996942492.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/luleraranejafa.pdfIn PDF document text
    • http://hakkabrothers.com/userfiles/file///27055925211.pdfIn PDF document text
    • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/tjcme66ri661mrdvp7taveiuap/35443012864.pdfIn PDF document text
    • http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/xiviterenipujug.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/muxibozedik.pdfIn PDF document text
    • http://brainbond.ro/userfiles/file/32382819318.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/91c81cc459f3e6fc9462452c2f3375e3/38234389204.pdfIn PDF document text
    • https://heritagecambodiatravel.com/userfiles/file/33121519832.pdfIn PDF document text
    • https://ms02bet.net/contents//files/95311172548.pdfIn PDF document text
    • http://raegcafe.com/uploads/files/48664872457.pdfIn PDF document text
    • https://doublehaircenter.com/upload/ckfinder/files/84878546839.pdfIn PDF document text
    • http://www.look4job.gr/images/_user_na/file/vavojudetene.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/xovadufaribip.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/92fb3e4e150a698b187bec7125fa684c/xodibujis.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160726e3dc24c9---8851113587.pdfIn PDF document text
    • http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/36joj0op1t93mktjmd2dafh46c/pilitu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=ion+exchange+chromatography+is+used+for+the+separation+ofPDF 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_off0000f61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E35 11288 bytes
SHA-256: 32dd8b985bc682687c4447468bd6a3942045e0c1524d6fa9b4cfecf180f2f8df
font_02_sfnt_off00012860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12860 17756 bytes
SHA-256: a6073996274149df68918a5f3ecbad4d0b754815b8d4a4acbc352f6b0782a20b