Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0630434ae9ed1e…

MALICIOUS

PDF

102.9 KB Created: 2021-09-06 06:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 092070e788566e1408448d30d23f0dbb SHA-1: 17ecf1f48a62a39ab5279a7db7ba827a081f1074 SHA-256: 7e0630434ae9ed1e2e08dec71114939a4c7272f307c4bf7e84151f78f7ef95c3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The file functions as a link farm, containing numerous URLs pointing to potentially compromised or disposable hosting sites. These links likely serve to redirect users to phishing pages or download further malicious content, aligning with common phishing and malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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 http://vitanova-cattery.com/upload/file/29936586898.pdf In PDF document text
    • https://jaurrieta.net/USERFILES_JAURRIETA/files/dexipasejufawu.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/69291546592.pdfIn PDF document text
    • http://www.sosonomo.com/ckfinder/userfiles/files/sefodoroka.pdfIn PDF document text
    • https://dm288.rs/slicice/file/luvos.pdfIn PDF document text
    • http://supragyn.cz/userfiles/file/58207020148.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9b43cb452---94563657850.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/579ac5824bb3578141da633c06d44eb2/wuvirozatifidazo.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1610cc58bafb8d---rejumibarepufufanojez.pdfIn PDF document text
    • http://skincarebylaura.com/clients/862251/File/75857024875.pdfIn PDF document text
    • https://abugfreemind.com/userfiles/file/89048809536.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a174570b3d2---kiroxanoxew.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/31229906811.pdfIn PDF document text
    • http://ahchala.com/img/file/jukapojomokoka.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cafe16daf6---75271361933.pdfIn PDF document text
    • http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/xasutikixodamimugarom.pdfIn PDF document text
    • http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/xunuguleloj.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/d6e3adc44c77939bca3a4150d4336db1/kivaxolijuneganoxelod.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/wekax.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607399d5f36d4---leguvalefasadove.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16074898ccec61---tatugujapujab.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16114552623fec---57052502255.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/27412179034.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=learning+japanese+language+book+pdfPDF 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_off000127d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127D6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FED 10992 bytes
SHA-256: c183c751395d14a6ba4b0bc5a3d3d70b4a2658c49ec186716fde97e8db25246e
font_02_sfnt_off00015906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15906 20164 bytes
SHA-256: 8d37225f7d95a2b669c9aea99aa2905a46b5b1bdc5f09c48c50c4a3980ca303f

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