Malicious PDF — malware analysis report

Static analysis result for SHA-256 4498b60ee0308c9d…

MALICIOUS

PDF

44.9 KB Created: 2021-06-04 02:20:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f94187a39d6c106fb1d8f1eafef8d4bd SHA-1: e6ccb5b255656ce233101cb5d30d5f8e553e8dd0 SHA-256: 4498b60ee0308c9d526a198bbd07bef00d57aac3d5c354738b6a329aeca16bae
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that promote a "Coin Master Hack Apk", suggesting a lure for users to download potentially malicious software. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports this assessment. Although no scripts were explicitly extracted, the document's structure and content indicate an attempt to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.online/app/406889139/coin-master-hack-apk-april-12-2021-game-hack PDF link annotation
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/tiktok-free-3d-model_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/114-hacks_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/pubg-uc-jarir_GM1330123889.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-free-spins-2021_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_004_off000052e8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E8 25144 bytes
SHA-256: b161c15da6e688fd94abbb9b2f3002b0f9af59c7b0024e5c2c4ebc99cf232110
font_01_sfnt_off00008c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7A 18368 bytes
SHA-256: 3b30659feb21661d356217d8966cbd258fac2e7fc1ab43a41212753c361910ee

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