Malicious PDF — malware analysis report

Static analysis result for SHA-256 2301a6179948f8fe…

MALICIOUS

PDF

85.4 KB Created: 2021-07-15 13:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: aef919c8702d34496ed6d4d5f1c95b87 SHA-1: 79e01cd2f7b8678f117457106f4e62155809e391 SHA-256: 2301a6179948f8fe0359c5f8febe90e02482cf11f1c319808a3e19dc0c9fa690
156 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9849

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://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091c7841ad3e---35154984178.pdf In PDF document text
    • https://wittnebel.dk/file/45840223121.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a505baf23dd---90312402702.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e23e37b4a---14425800461.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/lc2lgpav950s0p2ifku8nfvgg3/mesafa.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d1684fa83cae851bef050fe2b28adaf5/jomariwasatumo.pdfIn PDF document text
    • https://lacaune.hu/userfiles/file/81859349423.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/nigamidejozixaxusedab.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/cttev3qets86asiiccmv1s7lkg/zogudelagopotenoz.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761280d2bc6---kikijetebeteruwep.pdfIn PDF document text
    • https://oncetrabzon.com/resimler/files/desoxo.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baf4200fa64---kunisikugu.pdfIn PDF document text
    • http://wsm.hk/images/uploadfiles/file/venufuboninifej.pdfIn PDF document text
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/93iti29q81291jaquaneig8117/93835492868.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/459af920fbe42554682b9d452d73db3f/zezadoremun.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/wakobagatavomanuli.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4d0ed7e6ba---35774065801.pdfIn PDF document text
    • http://lesen-und-schenken.de/userfiles/files/xedeberovipinixof.pdfIn PDF document text
    • https://surupaceanu.ro/ckfinder/userfiles/files/25122847461.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/465b903044a044c43cbdbf094892b08d/wolotusag.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/dhh2925ghatn2srrcq0og3mtui/33289585420.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769e3deafef---vibasafaw.pdfIn PDF document text
    • http://teraval.cz/res/file/pizitunevos.pdfIn PDF document text
    • https://bem-sa.com/img/file/sasisa.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/zawepinodesubub.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e974888d08d---zulotekuki.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/10959036681.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=blue+elements+on+the+periodic+tablePDF 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_off0000ea30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA30 11072 bytes
SHA-256: dd6c048dd5320b6551ab5b1db069ffbbb9ce0130e1492778b07e3e6742bb705e
font_01_sfnt_off00010391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10391 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BA3 17048 bytes
SHA-256: 0cb3876527be1ad6aa64790957fd61876fb1dd4a90fd70b44bae6b559755de9d