Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04e59d48de09859…

MALICIOUS

PDF

103.3 KB Created: 2021-07-19 02:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: b8b8a1b5dd23cced4c25b66077d49f2b SHA-1: 5e7a2ebfb43f8cf3078846ccc07bd1d1a9797098 SHA-256: e04e59d48de098599dcd26c29a390573017a27992b7f2d1041cf58f97118d1be
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links indicates an attempt to lure users to external resources, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://roughriders66.com/clients/f/fa/fa96273273f04fd2a06feef12b1e4d70/File/wotofixovisexuwa.pdf In PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160965e2293b87---lifemubalivejutobupozise.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/25b6bf5de9ecad4fe08b0e3d593ad2c3/49067454663.pdfIn PDF document text
    • https://hagepoorter.be/files/files/fonaloxapezinileko.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/74264196841.pdfIn PDF document text
    • https://miaousland.fr/ckfinder/userfiles/files/jofizujutawotedut.pdfIn PDF document text
    • http://slphs66.com/clients/e/e6/e62fa13cff665df70d7481f632b33819/File/36589668706.pdfIn PDF document text
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/31pkndcafopdkvkrhs78va8cup/86934565053.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/2saskqrr4h2girligaguts1mt2/98777781195.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a40e392053d11dd555b9d7e52090b4e6/90286578776.pdfIn PDF document text
    • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a980d2ab166---nawagevelanu.pdfIn PDF document text
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/66lcjao5tlpt3cul3j54qeo50n/nonuniluxuwofapewi.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/1af01ffde163042252e45f57d32cc9fc/4543947200.pdfIn PDF document text
    • http://tms-technology.com/ckfinder/userfiles/files/62437083656.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607418b92f9cc---gevunamulatuxukopexelizi.pdfIn PDF document text
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/739fd604d76ede5d1e58dfca8e70ad86/gobevewapogu.pdfIn PDF document text
    • http://metisentry.net/ckfinder/userfiles/files/39300436369.pdfIn PDF document text
    • https://doluhosting.com/calisma2/files/uploads/nalevasepozodege.pdfIn PDF document text
    • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4628a1f6c4---furifexaboxazizutop.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/d38519058a42016cb873ba1ef30baed2/72613554169.pdfIn PDF document text
    • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ee379b6c0d2---sujikaposefekud.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/db1b85a837f7af2c708722cb73bd8743/32540171063.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=the+flowers+by+alice+walker+annotatedPDF 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_off00012e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00014674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14674 18324 bytes
SHA-256: 806261ca49aa567f6e8bd494c0fff504cf398b5fbd0a09eb917329c5d2a897ec
font_02_sfnt_off00017689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17689 10968 bytes
SHA-256: 576846ef414aa571d0c8b2593ab06895456482a422bd86039966e793423757df

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