Malicious PDF — malware analysis report

Static analysis result for SHA-256 585ad7f8b9ee725d…

MALICIOUS

PDF

109.5 KB Created: 2021-07-08 10:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: b2ba11eb2f2a6555538ad4a5e363aae6 SHA-1: 0f4ddcdafc6448975efe7981e9fb2fa4484176f5 SHA-256: 585ad7f8b9ee725d7a80f02bea3eee664c342bd26de292e99042053535101d1c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised websites and disposable hosting, likely intended to lure users into clicking malicious links. The presence of external URIs and link farm heuristics strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5557

Heuristics 5

  • 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
  • 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://catamma.ru/uplcv?utm_term=25+newton+meters+to+foot+pounds PDF link annotation
    • http://westleyden72reunion.com/clients/4/46/469dc9162705cbff2d1fbe132f144f37/File/90099234987.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/0dc25c79bee82c8f0c7ab7d52481da85/javevofijatewe.pdfIn PDF document text
    • http://longearedhounds.com/clients/65743/File/4890094057.pdfIn PDF document text
    • https://designclarf.it/file/rivuwofobi.pdfIn PDF document text
    • https://www.mds-horizons.com/upload/files/17021646492.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/74bb4fd3289f6086572afd1f146b5246/68217634757.pdfIn PDF document text
    • https://liantoong.com/archive/upload/files/73506375057.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/vixazetezoja.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081dcf569065---76159142583.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa57c952a4---67025884902.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/17569663938.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f93a2b30f---rifufubuweraki.pdfIn PDF document text
    • https://nestaerospace.com/uploads/file/vegavoxusotilefoduxane.pdfIn PDF document text
    • https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/3eb7eb865ba865225626fddc20a9b065/65509591765.pdfIn PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4576951e5---33768046967.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/2413280a4e4dfd152860d380af00f680/jonisej.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/e17beadef54e7aeddc6538605962fca7/82667684899.pdfIn PDF document text
    • http://jump360.co/upload/files/20210704083125.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/c6c66843a8d9403c39f3f66d75e90604/tasijanan.pdfIn PDF document text
    • http://ahsaipu.com/v15/Upload/file/202154952333242.pdfIn PDF document text
    • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/625d30f7a2b0f41555ca1ddff934fb59/72166901978.pdfIn PDF document text
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/tsbn8ncurij73fjd0ho8hhepvs/54998368077.pdfIn PDF document text
    • http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/9b2ceff0a21293c6a405d0a13637a3b8/89604696842.pdfIn PDF document text
    • http://www.jobsincrete.gr/images/_user_na/file/muluzumosafoguredumovis.pdfIn PDF document text
    • http://aceonlinementors.com/userfiles/file/27151361371.pdfIn PDF document text

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