Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0741a1692490af2…

MALICIOUS

PDF

87.9 KB Created: 2021-07-02 02:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ace0ba00f8edc1a96f7899b93e9fcf83 SHA-1: 8be2c9eaac93c891513ec1b9d9c105dba7340c90 SHA-256: f0741a1692490af2acbc59470df5229d5aac136d9b56cd30c86481838bc19f4e
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous distinct hosts, many of which are likely compromised or disposable, suggesting an attempt to redirect users to malicious content. The presence of multiple PDF link farm heuristics reinforces this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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 http://matsonconstruction.net/userfiles/file/gipekonab.pdf In PDF document text
    • https://willmarlakesarea2040.com/ckfinder/userfiles/files/40955653438.pdfIn PDF document text
    • http://accapierre.it/userfiles/files/tozavezomejakoxemi.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/66266768466.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/kokedetalodusejiwepikijax.pdfIn PDF document text
    • http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/14799648792.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/46426932440.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/d4647491c8adf7b8940f7aff142ed82f/wibatukopepetezulag.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/113e3805dbe567a225af46e82eb1fd27/xomiduz.pdfIn PDF document text
    • https://travelworld.ro/userfiles/file/jepufelatuteta.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/8hmiet1blkahao2tup24ao8v24/pabebubabixefogalefodewog.pdfIn PDF document text
    • http://eyupsifalibitkiler.com/resimler/files/xaxeduketavuwazuzurava.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/68228105300.pdfIn PDF document text
    • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/bf29b6b36151ae2a3f6dc2617fa4c407/27132304126.pdfIn PDF document text
    • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/1fvfvrus8i435m5je71qc0qml6/36859800205.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/pidematixiwoxekapujulavib.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/69l6muvf5s65le3pa9m7m0qcfr/49205496022.pdfIn PDF document text
    • http://feynburg-uhren.de/uploads/pasusikoz.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/83de3d65c871aaa0e0270b85c3a226a6/sajef.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/5r16kv4fh92bilnpc8hgk6kgv5/tusefemiraxulidago.pdfIn PDF document text
    • http://slsnn.ru/content/file/xiregujagefozipawezuvof.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/malukexiromexidexepeton.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b226425b3---41666925507.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc9a6b8fc8---59753328083.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=indian+mp3+songs+free+download+starmusiqPDF 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_off0000f322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF322 11296 bytes
SHA-256: 561764b2d3d4ee645fe23c4c0cb4bd6c56f6ab207ac2609c6c86e820780246fd
font_01_sfnt_off00010d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D2B 17096 bytes
SHA-256: 16defe116230d4b320283d0349af67e3e9d8041303b45c50d0d74fd777c18074
font_02_sfnt_off000139ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1