Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f5777b93d9603b…

MALICIOUS

PDF

82.4 KB Created: 2021-06-28 17:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 65d8afa49b2d60fc063ed98116d6404d SHA-1: 6190f6aa676a596de6fff398b2d54d21dd9d4ea2 SHA-256: 00f5777b93d9603bcf75f37e45acedd861ef1eafab6c6088d8da50b60cabde5b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/o20998ohnj9gsirvp0kv1al6l3/45717734560.pdf In PDF document text
    • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16080589e855e6---ruwubilotiwofajepegem.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/19ef1f9f9e140787262e991a010b1086/wukejizewagijizugo.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/27746350794.pdfIn PDF document text
    • https://universal4shipping.net/userfiles/file/lepizigekurajopopif.pdfIn PDF document text
    • http://caphegiabao.com/upload/fck/file/buserulenipidonudejibef.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/22489518771.pdfIn PDF document text
    • http://endemic-capital.ru/uploads/files/68692036805.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ff811f302---40683998449.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/0d64b3af567a96c1b96980d997cb52dd/wapolazapi.pdfIn PDF document text
    • http://fvv-hohenfelde.de/sites/default/files/files/36214879254.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b33b8b23ed---masivesotezemesujox.pdfIn PDF document text
    • https://pjkconstruction.ca/images/file/19296232760.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/ff6c19ffa529fd6d11e666902ab514d9/xilowawikajituvidavewukid.pdfIn PDF document text
    • http://tokstar.com/_UploadFile/Images/file/zazowus.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/7df301853792a504ed8a52c0ad6efe57/36756039449.pdfIn PDF document text
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/d8737f6ae6827f16094b2643b02065f1/75670845336.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607185cfd368f---gomuwus.pdfIn PDF document text
    • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160771fb116d32---62002696145.pdfIn PDF document text
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609187bdbd9fc---1911554316.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/uc8mi3pqoh9c4ndcgjt3qbi4m8/32495666584.pdfIn PDF document text
    • http://jorkurojus.com/userfiles/file/88988814270.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16077918215707---jipabimabor.pdfIn PDF document text
    • http://balogmihaly.hu/UserFiles/file/8200424198.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=surf+city+nc+things+to+doPDF 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_off0000da1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF236 10704 bytes
SHA-256: 939d1044bba4d64ea1a17380cd4d9bd03d9848b97ad1df805e69ee3267a62f38
font_02_sfnt_off00010a7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7C 20552 bytes
SHA-256: 0c699ce4310227a480b44233178019e3717a7ff29ff050fd375bcc8f37cb7218