Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a58b7052944a062…

MALICIOUS

PDF

42.7 KB Created: 2021-06-04 04:26:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 77cb6747e5b0f23455b1de5728c01017 SHA-1: 187ff9eef885960476a8b01fe671403d2ca7fad9 SHA-256: 5a58b7052944a062c5c13f598b94e25c9df35662b372fcc2746796781ba0cc06
102 Risk Score

Malware Insights

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

The document contains a lure for Coin Master free spins and includes a link to an external resource. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document may attempt to trick users into revealing sensitive information, such as account credentials or private keys, under the guise of game-related benefits. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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.online/app/406889139/coin-master-free-spin-sites-game-hack
    • http://muslib.unmus.ac.id/repository/get-free-tiktok-likes_GM835599320.pdf
    • http://muslib.unmus.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-roblox-bloxburg_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-robux-hack-us_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-attacks-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/twitter-coin-master-free-spins_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/free-shields-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/free-spins-promo-code-for-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-spons-apk-2021_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/my-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/minecraft-pe-hacks_GM479516143.pdf
    • http://muslib.unmus.ac.id//repository/wahoogaming-co-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/minecraft-free-download_GM479516143.pdf
    • http://muslib.unmus.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/free-roblox-glasses_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-generator-no-verification_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/best-free-robux-sites_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-hack-apk-2021-download_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-on-computer_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e48.bin
3a0d57b081938c225bde42387692939f3865d79712c5e6bece4a734447aa7d98		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E48 24112 bytes
font_01_sfnt_off00008543.bin
7b855ef2bb944b5b370c61480927ccad63ff31bdbf820bc1f0da9d35a10f5fb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8543 17884 bytes

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