Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b32c338da770f3f…

MALICIOUS

PDF

90.0 KB Created: 2021-06-26 00:09:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ac3ed5f9142754789c2eed83aec07605 SHA-1: 9534944d54b22ec6f93c717f94296d81d77b3f3e SHA-256: 1b32c338da770f3fca868cbeffc5a3aeba161f9490ef44b1cb31a3c60e548ff5
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. It also features numerous links to compromised WordPress sites, indicating a likely phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or trojan delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608862985c1ae---53847320090.pdf In PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/7a5f41ba56556a9bc16c13de5e0a483c/67667284938.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/scprd77ra3n99chgirveiufgo7/vukitusawe.pdfIn PDF document text
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609bcdbe2c59b---15713665622.pdfIn PDF document text
    • https://airbays.com/userfiles/file/12276404028.pdfIn PDF document text
    • https://easy2ticket.com/upload/files/bumazupenobipi.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/ff8bf120aa3e260ded695bdd657bf3fe/virotarejaxibe.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a3536c310---12112482059.pdfPDF link annotation
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160ba628e63ec5---39958680711.pdfIn PDF document text
    • http://classiccar-jp.com/js/upload/files/9648413161.pdfIn PDF document text
    • https://avayemehr-carpet.ir/data/file/38416148124.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/ccc4to2uhqcnjhs281i4tpjunb/labupuletam.pdfIn PDF document text
    • https://xanbiente.de/userfiles/file/nanopuju.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/7d8a1844d4e483a332151133287bd2cd/53420211268.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/90d8bbd6eb646bec2cdb0cd96b45e331/72620317915.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/14801998136.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/7285b5d3f578b2cf6d78e3c92cd2b136/bonojapofodu.pdfIn PDF document text
    • https://tidaksusah.com/contents//files/93602569625.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/62bd42b4a921e468a57291646920a0f1/14292082915.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/d779e52e0d64fd412d318850c43aedf2/25607031286.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16085dd0d71924---jujemofejamurulew.pdfIn PDF document text
    • http://brixtontaxi.com/survey/userfiles/files/39127220956.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea985391ed---71341802638.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b11491ba2d3---xunosutonolifak.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=momentum+masters+pdf+downloadPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD8 2072 bytes
SHA-256: 01b885c4622824da97d9032695263e43c65c4e1b2be2eefb01da60c4fa116559
font_01_sfnt_off0000f935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF935 17860 bytes
SHA-256: a60b44eab68fd6b1c845ba9541493dccc6724f6b59bfe5375360d4f4389064a7
font_02_sfnt_off000127bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127BF 10744 bytes
SHA-256: 6dcd3d0835b8cd7b2c965ffdc673ef90bbc5416e9441f7a9dac7114dbfc88fe4
font_03_sfnt_off0001408a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1408A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1