Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e86d9678319f3a1…

MALICIOUS

PDF

90.2 KB Created: 2021-07-09 10:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6bf9e1b4a1ce58e648a6cc5ff0a6a6c6 SHA-1: 39856cf9ae73656caafa44bc5fe8be8dbb999185 SHA-256: 3e86d9678319f3a1c113662d274b5753881839742c0768cb2e28ff039d096d80
196 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by ML classifiers and ClamAV. It contains a 'clipboard command execution lure', instructing the user to copy and paste content into a shell, which is a common technique for downloading and executing secondary payloads. The document also hosts numerous links on potentially compromised or disposable domains, suggesting a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://foodchemsino.com/d/files/16887303002.pdf In PDF document text
    • https://digireg.cn/upload/84168097151.pdfIn PDF document text
    • http://talleresjpg.es/img/file/fibomo.pdfIn PDF document text
    • http://konsultacjenaukowe.eu/Upload/file/jaliwubibijenixisapovujef.pdfIn PDF document text
    • http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/pusawosatemidonufisel.pdfIn PDF document text
    • https://gbagencement.fr/uploads/file/xosolibusogasaw.pdfIn PDF document text
    • http://kasintorn.com/images/upload/files/65105029751.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160950621e414c---pabesafafinozeleleba.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/9b6a92fab91e079927e36f0c74037074/91593909365.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/80681910197.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607899c53a0e5---kijekudopuma.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/8f14add9d8a5871c0b05c2e82ce4a480/73808118454.pdfIn PDF document text
    • https://nada70.org/userfiles/file/21935553279.pdfIn PDF document text
    • http://adaviestransportltd.com/userfiles/file/soxerifaw.pdfIn PDF document text
    • http://okfilm.kr/userData/board/file/kimujizegixeviz.pdfIn PDF document text
    • http://sbstroy53.ru/img/files/fobifuzovopifoses.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/44407236023.pdfIn PDF document text
    • http://fantasymusic.it/userfiles/files/58504356221.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16081465c2799f---28560209021.pdfIn PDF document text
    • http://bpsstudio.hu/uploads/98735288050.pdfIn PDF document text
    • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/827dc132709a980735ec9688f2dc2185/83323797878.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f2e13f409---xujojuzotusu.pdfIn PDF document text
    • http://schodylux.pl/userfiles/file/87013387414.pdfIn PDF document text
    • http://heorungminhphat.com/luutru/files/983152542.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=i10+airpods+manualPDF 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_off0000ef8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10797 1680 bytes
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc
font_02_sfnt_off00010f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F8F 19648 bytes
SHA-256: 55c922c739624a07ecd5262477a7a1312e77de616413701211f5838436b4b798
font_03_sfnt_off000141ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141ED 10548 bytes
SHA-256: 5cc309393839b767d21a63cba20fadd5fdf13bfe80c4ef7f767f889ca840a40d

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