Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dc7506e9bfb3dea…

MALICIOUS

PDF

76.2 KB Created: 2021-08-05 18:17:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 5513823c3948b9dc96cd5e91b08d1882 SHA-1: baef4a92026b51eb03096ba421c5fae816b0315c SHA-256: 4dc7506e9bfb3dea61b0efe7d03e6fd8c5a1fd3ea71dae883a3e67d0276b02c6
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that likely lead to phishing pages or malware downloads. The presence of multiple compromised CMS upload links further supports its role in distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6282

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://drafthe.ru/uplcv?utm_term=5+minute+powerpoint+countdown+timer+template PDF link annotation
    • http://miskolciharsona.hu/pictures/file/kanoxokot.pdfIn PDF document text
    • http://gpe-el.pro/ckfinder/userfiles/files/wimifodonadozum.pdfIn PDF document text
    • https://tecnicadovolante.com/images/file/zirewegaxovapi.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/10636696115.pdfIn PDF document text
    • http://solarexperten.ch/fckeditor/editor/images/file/99298170334.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/4a43e26714f7a7b03cd672c508e27221/55552103041.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fec9125c8b---zovavuveretezozimisub.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/75395022200.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/rexivovetuw.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/2788fff7adcf6a77cc2f380161b45775/salalatojovada.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/3078ccaa607becbd46b6ec6e40e77bdf/mejerajudimudebikewurati.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/6c37fd687fcefbfef7576d25f423730e/rogubusopoledi.pdfIn PDF document text
    • http://ulv-fogger.ru/d/files/18855359376.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/3ki777tsbc89i8nof6n6iqehta/28989518234.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/ef7175a1113f2908ba5ff0f19271ddcd/68470724446.pdfIn PDF document text
    • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/23qkjkeh9k37fnn4dnn7qlumah/losagutagexib.pdfIn PDF document text
    • http://dashoernerboot.de/userfiles/14752654097.pdfIn PDF document text
    • http://mikailang.net/userfiles/file/20210501112101_679566034.pdfIn PDF document text
    • http://greenbrier101.com/userimages/21096881837.pdfIn PDF document text
    • https://gachbinhduong.com/upload/file/savavolulidudol.pdfIn PDF document text
    • http://immobiliareborghi.com/userfiles/files/80924584101.pdfIn PDF document text
    • https://mvmdigital.gr/files/files/mofoxop.pdfIn PDF document text
    • http://belst.by/upload/file/96264168110.pdfIn PDF document text
    • http://beulahcooleycollection.com/clients/870349/File/95314592578.pdfIn PDF document text
    • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/cjflius3909uhrb3l05soglltd/tumivovigipigebereb.pdfIn PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/1us9gtqa6hl0q0du2cb71l5ogm/fovuluxava.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF390 10728 bytes
SHA-256: 09453438184dc256168ef8809ca82a1213664babb3d7afaa1c48943a95bd4bc5

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