Malicious PDF — malware analysis report

Static analysis result for SHA-256 708ee2f760ba49c8…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 20:14:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c2ffccc5199faeaeb97fc4f1d845ff14 SHA-1: 6b34dcbdd34e76305ae5bfe415ae6c5c4a63f353 SHA-256: 708ee2f760ba49c8daa10fe3bbf89ccc4e72955ba5e65ba8dad4f7011a23cb91
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, with a primary focus on luring users to download game hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external URIs reinforces the malicious intent. The document body and embedded links suggest a scam aimed at tricking users into downloading potentially unwanted or malicious software.

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/facebook-coin-master-hack-game-hack
    • http://www.perpustakaan.unda.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/comment-avoir-un-wall-hack-roblox_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-generator-ad_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/how-to-get-robux-free-sin-pastebin-2021_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/how-to-hack-on-roblox-jailbreak-into-police_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/hack-script-for-one-piece-legendary-roblox-copy-and-paste_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-sirt-maker-for-roblox_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/free-roblox-boy-hair-codes_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/animation-pack-roblox-free_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-spin-hack-link_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id//repository/hack-version-coin-master-apk_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-free-spins-link-today_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/german-free-robux-server_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/roblox-city-tycoon-2-cheats_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/fly-hack-for-roblox-download_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-game-hack-link_GM406889139.pdf
    • http://www.perpustakaan.unda.ac.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-daily-rewards_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003128.bin
785b38e6b59950c724a3e191e6399845b66b4146b4ad01fc0b32b6ae7c70c0d3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3128 23100 bytes
font_01_sfnt_off00006510.bin
de5d333ca2731b98d79dd38dcb89bccbbd759d9f6fb5713cf55863557c0b9bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6510 18324 bytes

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