Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cbbe19fec8bcb0…

MALICIOUS

PDF

43.2 KB Created: 2021-05-11 01:33:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2691267797e37e9673cb826892587971 SHA-1: 6c670c217a69b5536c0c65bc74b0f7fa18fc06c9 SHA-256: 05cbbe19fec8bcb03f649c7ca006117fa18140b5f837afa1e64d2aeb7136d8ee
102 Risk Score

Malware Insights

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

The PDF contains a lure related to game cheats and free spins, directing users to a suspicious URL. It also explicitly requests recovery secrets or private keys, indicating a phishing or credential harvesting attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/406889139/how-to-send-free-spins-on-coin-master-game-hack
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/oprewards-com-roblox_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-strategy_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/minecraft-18-9-hacked-client_GM479516143.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-robux-real-working_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-2021_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/rbxfree-com-free-robux_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-online-spins-coin-master_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-tricks-and-hacks_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/how-to-get-java-minecraft-free_GM479516143.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/rbx-claim_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-free-spin-trick_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/roblox-lawsuit_GM431946152.pdf
    • http://belajar.mtsnurulhudamangunsari.sch.id/__statics/gudangsoal/files/coin-master-hacks-android_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d08.bin
170fc839831d661128b060697e853329496fb15479447b38215613cedef47313		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D08 25116 bytes
font_01_sfnt_off00008697.bin
d00f7bd7e6d98a9c881f31d4bf80def427e9c83cb097cf2f19ca8a4d4a08bd16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8697 18224 bytes

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