Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dddc575a7b74333…

MALICIOUS

PDF

87.8 KB Created: 2021-07-06 04:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5cf47fd71e62ba047dbee4cc07c1a425 SHA-1: ce20eafddf417d99fec059ba8f0422c718b0cc89 SHA-256: 5dddc575a7b74333d3b9265482be765c2f1f57d8532136db3fe51d4418b2e136
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating it functions as a link farm pointing to compromised WordPress uploads and disposable hosting. The document body, though heavily obfuscated, contains elements suggestive of invoice or payment lures, further supporting a phishing or scamming intent. No scripts were extracted, but the presence of numerous external links suggests the primary goal is to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://tanriovermensucat.com/uploads/genel/files/37074337927.pdf In PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/t9vv8d025ie16e2n6l6dv3gj3s/nejurigubofadumilefugo.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4df8ca8d9f---22558736421.pdfIn PDF document text
    • http://foodsaver.nl/app/webroot/files/userfiles/files/29144563504.pdfIn PDF document text
    • https://agermag.ro/mm/file/xowutijikopebobudonejasin.pdfIn PDF document text
    • http://sun-eko.eu/files/file/jipim.pdfIn PDF document text
    • https://tidaksusah.com/contents//files/vusaravile.pdfIn PDF document text
    • https://go2germany.ru/files/file/33040527480.pdfIn PDF document text
    • http://kag.fr/userfiles/file/27442308388.pdfIn PDF document text
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/392e7d73bcde02eadffff748d57c4dd9/wepolupaxixuvefakujiki.pdfIn PDF document text
    • http://j1medical.com/uploaded/file/4757116248.pdfIn PDF document text
    • http://weiken-rc.com/upload/files/93848185943.pdfIn PDF document text
    • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/6532071892.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/cab3b794c1861e23e623cebf2ed4d5b4/vifiguboriz.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/zorel.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0762b7924---vapafezisidepiwixotafog.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bffc169c0a0---mivaxav.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/0dm3ee1tt6ftpgo91q6f4rf6a1/67495115402.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/rebenesigaxabefimiga.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dcfc1327c---88074976687.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a315e7d2a65---3757744199.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/edae003c8781f81669934025e4262cf1/bewitogoradavazowemepurar.pdfIn PDF document text
    • http://esejsc.com/upload/files/80452047544.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/094ca3ce77b34498dcaec490f39eef19/favibasuxo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=i+remittance+meaningPDF 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_off0000f0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D1 10192 bytes
SHA-256: 87774d1f53dc3f9b2552232ee38da0a938a57212639ff2f9ada3fc6123d43f0a
font_01_sfnt_off00010797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10797 19488 bytes
SHA-256: db48d55e6c3d695e28c65accdaf302944da51110a87d21115ceb1511b8aac502
font_02_sfnt_off000138b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138B8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1