Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed32c2a2afde79e…

MALICIOUS

PDF

73.3 KB Created: 2021-07-09 04:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2e9b8336fc5d683f271a8d2550938d5d SHA-1: 28dbc4488b68f5b8d0dd5dc3efe2315a038c75d0 SHA-256: 7ed32c2a2afde79e49e4c47c228aeebd731aca762bf94c05cf4892d61b4cdb79
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted, but the extensive use of external links points to a watering hole or phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 https://huntic.ru/uplcv?utm_term=electron+backscatter+diffraction+in+materials+science+pdf PDF link annotation
    • http://dlikefulproductions.com/clients/875850/File/75670711271.pdfIn PDF document text
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1607d59d770281---sezupojujarisodipipuse.pdfIn PDF document text
    • http://eros-arena-reutlingen.de/eros/userfiles/file/sijexiv.pdfIn PDF document text
    • http://immopolignano.lu/images/88525408484.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/e770819dc002337e8fe21a7f2ba881b3/4019664830.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/alunpdnca51u2mfhg7r6mi5hv1/35213735997.pdfIn PDF document text
    • http://nccutrackandfieldalumniandfriends.com/clients/2/2c/2cea5a7e730406ee40dfbbde6098010c/File/dexejujus.pdfIn PDF document text
    • http://renovator.cz/files/file/21463369834.pdfIn PDF document text
    • https://leosservices.com/userfiles/file/28154705918.pdfIn PDF document text
    • https://szaniterplaza.hu/ckfinder/userfiles/files/51110113654.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609868aca4269---zevijiweverinez.pdfIn PDF document text
    • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/nehv3ctf7hov09dit9clbnh7ge/362264350.pdfIn PDF document text
    • http://gps-tw.com/CKEdit/upload/files/14856680982.pdfIn PDF document text
    • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/3bcd1ca03b97bc43d7a20ebe29c3053d/36698497106.pdfIn PDF document text
    • https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/m991kedn24o1lrll253mjncb1o/remulak.pdfIn PDF document text
    • http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/34b267a5989ec4dd7883f170be505f48/mopogufikavatoririkala.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/a192814ccae4db41ecbf11cef1d00711/12880871088.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a987c74498c---xoxikiguka.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/kejewazatuzeruxugetisax.pdfIn PDF document text
    • https://cottonweb.net/userfiles/file/90006598940.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e25a7d0d50---novano.pdfIn PDF document text
    • http://apexhealthnutrition.com/newerac2c/userfiles/file/vamuwakurujoposojufe.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/benipowipubovufez.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/gv1r9uo83mjbkitu47u8cqshod/nalalulijo.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_off0000c068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC068 10996 bytes
SHA-256: cebaf37680cc2cb61624b037da6853fad429489e026d6d00ddf5e47f92ab5b65
font_01_sfnt_off0000d9af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AF 14732 bytes
SHA-256: b7c7951cebd630210444413e068215f7185a46078113cac5135353f16f50b060
font_02_sfnt_off0000ff00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF00 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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