Malicious PDF — malware analysis report

Static analysis result for SHA-256 9befac2726ed1895…

MALICIOUS

PDF

83.9 KB Created: 2021-09-07 16:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 6c4d69d2f88792adfab268fa23087560 SHA-1: 7e8b8cd7796c1b5f4b7349f1aa7098f7bbe5fb34 SHA-256: 9befac2726ed1895cda206c3d58644108135d89437aab899e3757218875b8166
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm containing numerous external URIs, many hosted on disposable domains or compromised CMS uploads, suggesting a phishing or malware distribution scheme. The embedded URLs are designed to lure users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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 https://garglob.ru/uplcv?utm_term=kenmore+electric+stove+top+manual PDF link annotation
    • http://hillcresthigh1971.com/clients/9/9f/9fbf9047a6869172a982db6f42f05a9a/File/7262869516.pdfIn PDF document text
    • https://rumahbaruku.com/contents/files/9342277084.pdfIn PDF document text
    • http://bociany.sk/media/file/jigiluwawaturovoxavifam.pdfIn PDF document text
    • https://papersacksfactory.ae/images/bulk_images/files/29483598937.pdfIn PDF document text
    • https://forumhrdbekasi.com/webroot/userfiles/files/gazijafepojagijegafokitit.pdfIn PDF document text
    • https://wineart.online/userfiles/file/juwibetofajisakabaler.pdfIn PDF document text
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16098466fb75f4---pedenivoniniza.pdfIn PDF document text
    • http://gruaszarate.com/ckfinder/userfiles/files/zusekesavukukiruderujun.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202107082155233059.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610821e768cf9---folusawerupijolupaxo.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/5f769fa1cef9463736ea69715bd2f110/wijukan.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20210825091508.pdfIn PDF document text
    • http://sportsclinicwest.ie/media/contents/file/48238652108.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16075539f07fa6---movosixif.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610fcdb7418d9---tuluzikuxafijape.pdfIn PDF document text
    • http://thepnguyentran.com/media/ftp/file/72356155381.pdfIn PDF document text
    • http://dmychadla.eu/UserFiles/File/zekagopobusefe.pdfIn PDF document text
    • http://uci.ir/userfiles/file/malatavugij.pdfIn PDF document text
    • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/jowebetedupoko.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fa0b30b68b6---8048825229.pdfIn PDF document text
    • https://ferado.vn/userfiles/file/kodizitepefabi.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/481ed238331d4a40ebf0bbf5d4f35349/15254496260.pdfIn PDF document text
    • 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_off0000e2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fb11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB11 17560 bytes
SHA-256: 36bf86cc4131d68243565519b654c35d6861564b26269c5885ab158fd0689f97
font_02_sfnt_off00012948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12948 10692 bytes
SHA-256: 20bdd07aba4f006218eec36ce4ead6ab73e20060e7c55086f0c91574ff5a99f3

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