Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e443530b4817ea…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 07:11:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ba02e20f7eb681554ee9e3613ade75d2 SHA-1: ff1bcbf4bec6586eb19d121a1458abd1907efe4c SHA-256: 60e443530b4817ea61f72917bd6b925f725b33b10deb1233ed53c8ea448eebd6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as game hacks or cheats for popular mobile games like Coin Master and Roblox. The primary URL, http://netcdn.tw/app/406889139/coin-master-hack-apk-35-11-game-hack, is flagged as a lure for game hacks. This suggests the document is designed to trick users into visiting malicious sites that could lead to malware downloads or further phishing attempts. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-apk-35-11-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/speed-hack-roblox-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-dimonds-in-roblox-royle-high-shool_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-free-bodys_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-codes-cheating_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/19-diamond-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/emojicode-roblox-2021-get-emojis-free-2021-d-_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/gimme-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/forsaken-sword-legices-2-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-pass-hacker_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-games-browse-our-selection-of-free-online-games_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/aplicacion-rusa-para-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-bedrock-free-with-java_GM479516143.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_002_off00003367.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3367 22828 bytes
SHA-256: 1fdaef8b7edb1d55c3e6d4028dea0097c279b1f9e018d044f31aebf70f15a608
font_01_sfnt_off000066a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A1 18592 bytes
SHA-256: 7f49051940b6b9efc6132f30ff89e7b8d09fd75ee36cd2478622d195921c531a

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