Malicious PDF — malware analysis report

Static analysis result for SHA-256 132e3b90d6ea458d…

MALICIOUS

PDF

88.7 KB Created: 2021-07-02 16:07:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e579b9e05a933d44d39aae47ff8576ca SHA-1: 44b461884d03593c293c8663e8f24aa30d8ffc92 SHA-256: 132e3b90d6ea458d039be27bbd405a85d194a9d7a0fdef0d3bda10daadba4e92
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs and utilizes a link farm strategy, directing users to compromised CMS uploads and disposable hosting. The presence of a 'download button' heuristic and ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates a phishing or malware distribution attempt. While no scripts were explicitly extracted, the overall structure and URL patterns suggest the document is designed to trick users into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://inwebjor.ru/uplcv?utm_term=kinemaster+for+pc+free+download+full+version+crack PDF link annotation
    • https://cakkue.com/contents//files/20653953269.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ptg0dec5jrhhd4flc17g0j1l60/sadotuzaturuzomugofimimov.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/45e23d7b60b5e910fdc4af15234b7f57/nerajozokerisimuxewaza.pdfIn PDF document text
    • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/6f5945a14cf1d697f5f748305a16f51b/26456462445.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3821d9150---roximotaxubexokovulaxad.pdfIn PDF document text
    • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086ba89db5c7---tegeridiwinula.pdfIn PDF document text
    • https://ekransamara.ru/files/najefome.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/rinilefefulida.pdfIn PDF document text
    • http://stlnsk.ru/uploads/file/tutixolopidel.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7856773d3---95600766163.pdfIn PDF document text
    • https://x-software.cz/data/file/tuxiworigide.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9cf9751fc---71713354055.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a732044bc5c---redij.pdfIn PDF document text
    • http://thedewakohchang.com/image/upload/File/599960570.pdfIn PDF document text
    • https://hoakhanh.vn/uploads/image/files/93403911301.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607759dbbbae4---minifaz.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/fir2quhpp6tkls52rbn6qo7sk2/26150223502.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/t32948of7jvik5hkp4eb19v414/gimagewixivomu.pdfIn PDF document text
    • http://sugarfree-gelato.com/upload/file/18670580991.pdfIn PDF document text
    • http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/vavelox.pdfIn PDF document text
    • https://damsindia.org/admin/uploads/file/3744902728.pdfIn PDF document text
    • http://lucann.com/Upload/file/62801957983.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/861674d0563215e2612b95068c026d60/18056792856.pdfIn PDF document text
    • http://geraldkleinlaw.com/ckfinder/userfiles/files/tozopobivoxowovarivili.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b08d7cc9d---25530676429.pdfIn PDF document text
    • https://mytekas.com/UserFiles/file/jexozevazejeselelu.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_off0000f2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BC 11116 bytes
SHA-256: c283de8ae99a0d147528271e1cda04d5332d48505f29ffb49c4b43bc285de397
font_01_sfnt_off00010cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CB4 18732 bytes
SHA-256: 0b5aa11f49ca7eac04ada5ec9f8c2666095726c8814b07b0f60b29fb35846e3d
font_02_sfnt_off00013cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CFB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1