Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e6f06f115504e27…

MALICIOUS

PDF

98.3 KB Created: 2021-06-27 09:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 356f885fbc52f530495fc0e710bb834d SHA-1: 8e03c87207141138ffd450c62c57b5196461fb4d SHA-256: 9e6f06f115504e271e340ef649225671865b3ef84c0e675792986a91f6ac1676
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam. It contains numerous links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to distribute malicious content. The document's structure and heuristic firings strongly indicate a phishing lure for financial gain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.hangmandigital.com/files/file/7875746157.pdf
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/kn1rodhqo7uglrj5nb99cv9u72/ruluwilaloza.pdf
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/fe470a3dc1b2224ee957ce8980f307b7/12673489815.pdf
    • https://gw21.ch/uploads/userfiles/file/49269953604.pdf
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c59a712ad7a---62572943952.pdf
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/9ac6185eb0276a91aaa33b2bb2da8358/54520232532.pdf
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/d168f41711e6bcebdae3dcbb5c5422fe/65975016155.pdf
    • https://fotokeramika.bg/userfiles/file/tumuvujusa.pdf
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d465951b5ff---9743641813.pdf
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b39096441df---49782594426.pdf
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607418cadba99---panovaluboxab.pdf
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/2d4fdea0c11f6418e0c596489a9ad7c1/tepozizeseborotovujaxil.pdf
    • https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/tu57ag8voujpjrraab6jkm69nr/97857195440.pdf
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/3c326dfb39ef55f769995b09805edd97/savovetivixiso.pdf
    • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/g8s51ff3t66bsjrf4vebckc9ej/kibumirezupurifotakar.pdf
    • https://defaico.com/d/files/kigikemefoletibi.pdf
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/16359b99c7e3254708cd3082860d8a56/31784545428.pdf
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/66vmtkgknot2rm21q9u8hcq5ja/71792620531.pdf
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c5750d8115ad51f8a828e820366a7109/60628116145.pdf
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c057ab584ff---zesusuxot.pdf
    • http://aaaexpressheating.com/userfiles/file/98284272610.pdf
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/779c21f4d209a533d9b2850819d52a6d/33462141051.pdf
    • https://narimasu-chintai.net/jcfiles/file/rufanerev.pdf
    • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/3a2b80aa38e682d198a3218ca76a1bba/viwira.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=convert+ps+to+pdf+command+line
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a43.bin
2b5f85744e248e4be217e0c0c0ff1b9c6711d7689a720b155ab8629ff006f4bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A43 18584 bytes
font_01_sfnt_off00014ab1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x14AB1 16792 bytes
font_02_sfnt_off000162c8.bin
4b8273da0d7b0894892e8a452efe9c5f267038599ef36d5fd5b55b9c9e55b03c
pdf-font-stream PDF embedded font (sfnt) at offset 0x162C8 10880 bytes