Malicious PDF — malware analysis report

Static analysis result for SHA-256 007f02b75eb1320a…

MALICIOUS

PDF

96.3 KB Created: 2021-07-02 18:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 3369f1225dec6d77f5f125afc0bef952 SHA-1: a9cc508e45ca2c38537480991c40a3f5560f96e5 SHA-256: 007f02b75eb1320a6d01dd274b0ef30d77d63e72ae75353b64dd217f3730e406
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded links, many pointing to compromised WordPress sites, suggesting a link farm or SEO poisoning tactic. While no scripts were explicitly extracted, the PDF structure and link farm behavior indicate a malicious intent to redirect users to potentially harmful content.

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 https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/dc87e03966ac65815a7fe23dd10d0a0f/69118611430.pdf In PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/24e58d4ff5a65191a842105b02e99625/dutubutasetevusukurul.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16094cd5d7bd5a---jetedepe.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/c060008e8bea0646f5f85fbb34ec8ce1/rusuvoxivonadosizuwali.pdfIn PDF document text
    • https://tadimtursu.com/image/files/fadojinisarupim.pdfIn PDF document text
    • https://proxus.nl/file/guniwidoze.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/53038682185.pdfIn PDF document text
    • https://global-brand.net/userfiles/files/lotijaxiwomukonovel.pdfIn PDF document text
    • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/9626d9e6b3682953ef3462dc33083c5f/32911368525.pdfIn PDF document text
    • http://alliusie.com/userfiles/file/wezapasefejetixuzerox.pdfIn PDF document text
    • http://dalaichau.com/files/84485915083.pdfIn PDF document text
    • http://asckhn.com/acskhn/userfiles/file/20660535725.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/31612864040.pdfIn PDF document text
    • https://catbasailing.com/upload/fck/file/vasafavexowiwa.pdfIn PDF document text
    • https://osakadentalcare.com/contents//files/lovovajimiduzupuf.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/musuxux.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/fi0m1mmr0lprdma2im6hth8ccr/24353163598.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e99cbb3a2c---diwefexotaxuvetiz.pdfIn PDF document text
    • http://ekotop.eu/userfiles/file/rapanonokolugejovotalego.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4682dfb4d---fifasoba.pdfIn PDF document text
    • https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16084311ce78c9---32181461845.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+make+all+items+in+minecraft+education+editionPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11578 10904 bytes
SHA-256: afe4879cda2d8c2868bafc011b3410fc73a5dbc88215e2c34cb4b0f579a20a62
font_01_sfnt_off00012eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EBA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000146cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146CC 17284 bytes
SHA-256: 531dea198ad2092a3190592e0c3dff318ad80f39baedc49d0fe58d16725c0b16

Open this report in the interactive analyzer, or submit your own file for analysis.