Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ea71809da5f5cb…

MALICIOUS

PDF

96.5 KB Created: 2021-06-28 06:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 02e16747a219e3c45564edb2520ce4de SHA-1: 534cbc46c296be8dcfd15e3c4c12406156d2e4e3 SHA-256: 06ea71809da5f5cbad52ecfc3a2c9c6f4fe64c232c408def5b59ff987b765384
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable domains. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a deliberate attempt to create a link farm for malicious purposes. The embedded JavaScript likely facilitates the redirection or download of further malicious content, contributing to a phishing or malware distribution attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9930

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://faprosid.com/file/ralaxisonizuvogo.pdf In PDF document text
    • http://kappp.ru/js/ckfinder/userfiles/files/4071545952.pdfIn PDF document text
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/44cifnmlqogb7bmqmkqgg27snv/bifipawenofitokogikuguxil.pdfIn PDF document text
    • https://binarbaidservices.com/public_html/userfiles/file/wepujelanopetalokadu.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/cd7038415c693897905e4dfb04c112dd/71073203383.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/586ee7c7278b3f8d726b7f04b873628f/28978560135.pdfIn PDF document text
    • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/vovodupatadivexajabew.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c90917bb4e5---39041334098.pdfIn PDF document text
    • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/5bd4e8f0317eb6fbd2597e1c9963f20e/meletorekez.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/mb1ac6dqfv7fsuu6ossnd9g1ih/16448831379.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/3b2b3c109968b62616fc32d2924908d3/35916464867.pdfIn PDF document text
    • http://project-lovcen.me/userfiles/file/60066596952.pdfIn PDF document text
    • http://border-inn.com/CKEdit/upload/files/norurivamazesodonolode.pdfIn PDF document text
    • http://aps-mes.com/files/file/34657631917.pdfIn PDF document text
    • http://bakoca.hu/files/file/74962245824.pdfIn PDF document text
    • http://hotelbelleepoque.bg/userfiles/file/potav.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b97071c86---nozilununuwapes.pdfIn PDF document text
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/61d04e3f8b76d30ad81f43ab6d319233/rasozajuboj.pdfIn PDF document text
    • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/954c0f469bc97d15212fdeb7f3b299cb/zinemoku.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/c6aaefd16c037a537a9797b8145435ef/dugefuwowajupedoxawuk.pdfIn PDF document text
    • http://baugeraeteverleih.de/benutzerdateien/47678727778.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/0v1mi4gq4mlue83ek47u7rf5sg/38063585962.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=10+cents+to+pkrPDF 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_off0000fa40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA40 10236 bytes
SHA-256: cc7387a8085d5e4851ad3544c2f20cf8dfcb586a974f72641132fcbe3657e73b
font_01_sfnt_off00011163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11163 18204 bytes
SHA-256: 1f6b92f2eee8c06daa028c19a20da5fffc05d5170a7fb2f4f8eafe5d25f69e35
font_02_sfnt_off00012e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E84 17580 bytes
SHA-256: 07ece55b4d819246d40999a43ef0a9a57789c413d7369b10008f9b2213af3f8a
font_03_sfnt_off00015cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CDA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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