Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ff78cc8bacc9a1…

MALICIOUS

PDF

40.1 KB Created: 2021-09-25 03:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 85328c9935bfb66becb10082e91944cd SHA-1: 4c357892d70ad399114e97256e1c9662992281ec SHA-256: 29ff78cc8bacc9a17873ef06924907b4124ed009dce78434bd3edfacde18034f
124 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates the document is a link farm on disposable hosting, with one URL pointing to 'younewstoday.com'. This suggests the document's primary purpose is to redirect users to potentially malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7849

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 http://younewstoday.com/task/userimages/file/36949652853.pdf
    • https://ekoelprom.pl/public/images/editor/file/vovodifumedije.pdf
    • https://wineuniverse.us/userfiles/file/lugekiwulifav.pdf
    • http://embeddedhr.com/ckfinder/userfiles/files/nufiveburatabexumixefoz.pdf
    • http://fishtech.org/uploads/userfiles/file/file/tinedekevemaveguwipubev.pdf
    • http://al-bandak.com/userfiles/file/96853189228.pdf
    • http://s4l.vn/storage/ckfinder/files/rajutikadorofiwomibofud.pdf
    • http://standdominica.org/files/files/41460294259.pdf
    • https://firmabudowlanawalczak.pl/web/uploads/files/63438262548.pdf
    • http://congtrinhnhaviet.vn/upload/files/tagivajovabizebad.pdf
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e22c3239b3---7946285365.pdf
    • http://hgbs.de/userfiles/file/vimanitam.pdf
    • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/49611007649.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=online+unlock+pattern+lock+android

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