Malicious PDF — malware analysis report

Static analysis result for SHA-256 8849c9124fccb239…

MALICIOUS

PDF

86.8 KB Created: 2021-07-04 02:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: daa801fb7baf4e50e597ad117bfb1b5b SHA-1: c3e25f08252f96dab85c59cec769bc6fec564c48 SHA-256: 8849c9124fccb23914d8f0d5efabfc3e26e3cbe5c9da4234d21ce457d4322850
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It functions as a link farm, directing users to multiple external URLs, some of which are hosted on compromised CMS upload directories. The presence of PRC/3D content and a download button lure further suggest a malicious intent to trick users into navigating to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 8

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dejavuruse.com/userfiles/file/98847742871.pdf In PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2bfd45d10---vaxuterubej.pdfIn PDF document text
    • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/eac6347c4a55282c48fe6f49dcdec8ee/nofesuwozasudu.pdfIn PDF document text
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/1fc3394fcce1912f9fcc518ff7ba7010/wusozuriwinokabusijusosas.pdfIn PDF document text
    • http://whatdwellswithin.com/file/48110882218.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/939f8d081742dc14e394a7853386ab8c/81236141864.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/5tus41qcd0dh7ec8tinhuaic94/19469517782.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6c7572e94---dewitikalelopigir.pdfIn PDF document text
    • http://www.deep2001.com/images/library/File/51706862403.pdfIn PDF document text
    • http://ithaca1962.com/clients/41687/File/piwepugeteporamufuderovan.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16077b36cc2c25---20167977740.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16081fe6700392---64428745679.pdfIn PDF document text
    • http://atut-biuro.com/uploaded/file/jetajadaji.pdfIn PDF document text
    • http://hasyo.net/files/file/mugin.pdfIn PDF document text
    • http://phaptangpgvn.net/app/webroot/upload/files/15852070729.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16098a17a4af39---jigejolazubidozuzet.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a149c23c376---vowusil.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d5ac48908b6---29316160535.pdfIn PDF document text
    • http://pleasanthillpchurch.com/clients/5/55/55aa087cacc886b2254ddcc242c0699b/File/letusirurugasasimoman.pdfIn PDF document text
    • http://sangiorgioautoservizi.com/userfiles/files/75084737473.pdfIn PDF document text
    • https://kodcomputers.ro/2664/uploads/65540102544.pdfIn PDF document text
    • http://danguykhoidoanhnghiephp.vn/Upload/files/wakatasedifopo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=iphone+x+launcher+for+iosPDF 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_off0000e3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D1 10632 bytes
SHA-256: 4d08ccf0b3389df8fca9c4072ee41927d334fa19ad8c379cc4d2e07befc98e82
font_01_sfnt_off0000fc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC0F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11421 27500 bytes
SHA-256: 31484c05e9f535da25d024240b756e6d4efa61bad304904e4005695d48c43dbd

Open this report in the interactive analyzer, or submit your own file for analysis.