Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0d21a95ab9440c…

MALICIOUS

PDF

222.8 KB Created: 2021-06-25 20:30:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 4998e5523dc78835586ce77d18bab482 SHA-1: 34d712c348947a6623762fe03074d61d09ac28da SHA-256: 2f0d21a95ab9440c4347366dd45d6445ff9ece8210ec1a258fee46fd8d8c0317
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. It contains numerous external URIs and links pointing to compromised WordPress upload storage, suggesting it's designed to redirect users to malicious sites. While no scripts were explicitly extracted, the presence of external links and the phishing/trojan detection strongly indicate a malicious intent to compromise users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9852

Heuristics 5

  • 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.
  • 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://ketchas.ru/uplcv?utm_term=king+james+bible+our+father+prayer PDF link annotation
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160746553a0d97---zoxejurifevijax.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160835e9fa1aae---sumobozozonikiririsi.pdfIn PDF document text
    • http://escqatar.com/uploads/userfiles/file/file/gapalizewasutovodibi.pdfIn PDF document text
    • http://7166867.ru/ckfinder/userfiles/files/jiwutoxupinazupibedosilib.pdfIn PDF document text
    • https://mt-creativestudio.com/ckfinder/userfiles/files/66801751403.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/69302449332.pdfIn PDF document text
    • http://nemeckystrakac.sk/editor_uploads/files/91386925402.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/5e8qq1u370qj9ck2ajg44k1n06/wagetis.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f80804628---vodogivixero.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/zekewowud.pdfIn PDF document text
    • https://vandolderskb.com/images/usr/pafanuzezobot.pdfIn PDF document text
    • http://bet-balance.com/userfiles/file/fafavazuneran.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c2fe87e0448---wanugagexifagunowaw.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160bd3904e82a5---71465301757.pdfIn PDF document text
    • https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/k5vtp5osfolsr3bp681a2h4boe/92659112698.pdfIn PDF document text
    • http://bungefamily.com/clients/5233/File/xetojasejetikeviten.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160879768beaca---7097392421.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/43703945450.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcb80a2212---95685523956.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/003c77a3632674d2de783f90fa41ed76/zedinupenepovapis.pdfIn PDF document text
    • http://benedictinoselrosal.org/ckfinder/userfiles/files/gijobifumodojagobajopebur.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160a17d4419460---bumutug.pdfIn PDF document text
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160952c8b6663a---kozakakinumibukesovowizus.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075bd3cebbcd---waxafuzebiwojasuma.pdfIn PDF document text
    • https://plasy.com/uploads/file/tamavefixemikufujumenapiw.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_off00030e37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E37 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0003264e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3264E 11280 bytes
SHA-256: c2df44def8240e2152a30e271115dbd019e2b4020fba27ddd737529767ed1fe0
font_02_sfnt_off00034059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34059 17224 bytes
SHA-256: 3f68b4f94df642edd6973bf869e8174a1e5f510de2943be9febddec362c99074

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