Malicious PDF — malware analysis report

Static analysis result for SHA-256 2613e52d348d6bb0…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 15:31:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ae6cfa8eb775e8ec860385f9a622a0d6 SHA-1: c93e04ef71ea70acfd7f2d68620be8724f4d846b SHA-256: 2613e52d348d6bb02fba5a735b8f3ab8d53e8d52e822a33f273699c36e039f81
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and redirects to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of multiple embedded URLs further supports this. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a potentially harmful site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.xyz/app/431946152/robux-no-survey-game-hack PDF link annotation
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/easy-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://e-learning.man3pyk.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c07.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C07 24716 bytes
SHA-256: 9570d4a389f0cb5e1add928880016a344062340cb1ccb4f393e3b611120649bb
font_01_sfnt_off00008454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8454 18144 bytes
SHA-256: 51c7a9de4a3a273f6fa8ac7622f19aef511f410b3317fdbb853ddd1ab61a3972

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