Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6aa523d98ac95b…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 13:01:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 653b1e9a330147ae3658c602ddef3680 SHA-1: 1b736f5db597f8973c96b7a388cc9d2bc96e9acc SHA-256: 0e6aa523d98ac95bdb9274cc4231e506d50eabdfe9c79a7acecf0b5ad12bfca4
62 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating an external URI and a visual download button lure, consistent with a phishing attempt. The document body and extracted URLs promote a 'Coin Master Hack', suggesting a scam or malware distribution. The presence of a callback lure further supports a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/ios-coin-master-hack-game-hack
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-homepage_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/game-toolbox_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-online-tool-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/is-there-a-free-version-of-minecraft_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/pokemon-go-free-7-day-streak_GM1094591345.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-minecraft-account-list_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/is-minecraft-education-edition-free_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-free-promo-codes-vrp-madness_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-fan-page-giveaway_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-buy-things-in-roblox-for-free_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/flip-master-free-coins_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/robux-card-codes-free_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-daily-free-link_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-cheat-moves_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/strucid-aimbot_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-free-group-funds_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-generator-without-verification_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-easy_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/cheat-roblox-jailbreak-teleport_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f82.bin
b0da3f8d24245a37b290826843f0138970de0a28a1bb2230c931ad3111cdd20d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F82 22488 bytes
font_01_sfnt_off00006183.bin
1dea32a01bfce18b325b33ca5688a8bef39c34a40412565ca8fc8a7bb5032574		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 18004 bytes

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