Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd62217f31baf47b…

MALICIOUS

PDF

50.6 KB Created: 2021-03-07 10:33:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0310b9e6d62f0eeaaa79f3872077f477 SHA-1: 838f7326645efa4612aac5f026279086f5d5d656 SHA-256: dd62217f31baf47b82b11468884ee07030365199505747ff68d9cf0bfd124a7f
124 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7533

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/aws?utm_term=viper+remote+start+installation+cost PDF link annotation
    • https://cdn.sqhk.co/matikefateri/jpftijc/nimufezavurafarujebogep.pdfIn PDF document text
    • https://cdn.sqhk.co/numorolele/fgflhhb/mathletics_student_book_series_e.pdfIn PDF document text
    • https://cdn.sqhk.co/xekowodu/gii4nhe/29632684969.pdfIn PDF document text
    • https://cdn.sqhk.co/naxibibu/dkQDsjd/rizelenuzexutide.pdfIn PDF document text
    • https://cdn.sqhk.co/lixozimiz/T3nsYTv/dune_tv_series_where_to_watch.pdfIn PDF document text
    • http://boomerangoo.site/bedarakevumemelexepkcvng.pdfIn PDF document text
    • http://abreudesigns.com/download_game_basara_2_ppsspp_android_isod85tm.pdfIn PDF document text
    • http://free-at.pro/5347846377482a6d.pdfIn PDF document text
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    • https://uploads.strikinglycdn.com/files/e37f1635-3de4-4ef7-ba67-642d8ae48cd8/what_is_tales_from_the_loop.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/17522935516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ce11afa-d399-4e27-876d-02ceb113076a/1994067702.pdfIn PDF document text
    • http://wixobemiberug.epizy.com/fortiswitch_248d_datasheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef8f6d8c-5929-4024-8b7c-3a0a1734e21f/48282292652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ccf06a1-3641-4d65-bca0-82bbb53cf6ca/51922865065.pdfIn PDF document text
    • http://xesijapapun.rf.gd/ferrari_458_spider_price_2019.pdfIn PDF document text
    • http://molezegifa.rf.gd/94090031714.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/criminal_case_full_hile_apk.pdfIn PDF document text