Malicious PDF — malware analysis report

Static analysis result for SHA-256 d269a1b9dd4ecb09…

MALICIOUS

PDF

84.1 KB Created: 2021-06-29 14:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 04acc80f25778e12c79fb41fa0c7d504 SHA-1: ef0bbe7a53f97542d9ef4dfd4e6eaa254118c3ce SHA-256: d269a1b9dd4ecb09a2b78f0cf457ca81233e0fdd7baf72c96be99567221e3585
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it's part of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://allytemp.ru/uplcv?utm_term=how+to+get+rid+of+stains+on+plastic+containers PDF link annotation
    • http://manavpublicschool.org/manav/userfiles/file/35171447957.pdfIn PDF document text
    • http://pusancard.com/userData/board/file/11225821251.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5b32bafd5a---fulomabupag.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/55474905700.pdfIn PDF document text
    • http://fedoro.ru/upload/file/92771379555.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/somewoxasejebodujulomog.pdfIn PDF document text
    • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a46632c9b5---fuken.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608a116e09c5f---58889006826.pdfIn PDF document text
    • https://invest.pl/userfiles/file/55799543868.pdfIn PDF document text
    • https://tungqibiotech.com/upfiles/editor/files/72475813341.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a611567874---17989976559.pdfIn PDF document text
    • https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/e465c19c94f6f0ae3e0fd78f9e5233a7/50898519169.pdfIn PDF document text
    • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/5c58qng4mca4m5mlu47ikcl0vu/kilapemopawolakireviwuwu.pdfIn PDF document text
    • http://capesociety.ca/uploads/files/81004377992.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/eef72ebeee5da220f7e6cd2d9fde42c2/buvigofevidomukekax.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1870bba64---10441759274.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/nmhr5nkcps3n58cnm8049046at/46656899861.pdfIn PDF document text
    • http://eksan-ltd.com/userfiles/file/banalorukugonafujovakuj.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a64c3920fd2---fimumede.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b2975b4b147---64885119687.pdfIn PDF document text
    • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/7e104ecd2d932e531eae5aa2b9025860/kofojozevavepowajiposu.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/ripomikuvusamo.pdfIn PDF document text
    • http://jestbogiem.pl/app/webroot/uploads/file/kisivupul.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/vchj39nv7v213hcromgctg91l1/moresizumetub.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16086e0003d44b---88988914495.pdfIn PDF document text
    • 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_off0000e8a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A7 16028 bytes
SHA-256: 04ff33bef54a77f5b9728d572db567fd1d8eb1fb494d0e8d34b18e22c90ba7bf
font_01_sfnt_off000111c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000129dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129DC 10872 bytes
SHA-256: 6a55aeb32084049c64ef1862e38ef29a76e7a254127be08e11e83c1829cf6e8d