Malicious PDF — malware analysis report

Static analysis result for SHA-256 11c5cea2f7bfb27b…

MALICIOUS

PDF

46.7 KB Created: 2021-06-03 13:04:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 71afae758429aa8715919600d5ce3048 SHA-1: ce045af793f61d2d9e02555881fd3dfe00577954 SHA-256: 11c5cea2f7bfb27ba8dda7ec7350a5c614474e56949f2ee6ec7d212d47b7df7d
82 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristics indicating a lure for downloading content, possibly related to game hacks or exploits. The presence of a 'download button' heuristic and an MFA lure suggests an attempt to trick the user into clicking a malicious link and potentially harvesting credentials or session tokens. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/431946152/earnrobux-game-hack
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/village-4-coin-master_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-coin-master-spins-no-human-verification_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-rewards-2021_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/minecraft-hacks_GM479516143.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/tryrbx-site-free-robux_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/boku-no-roblox-hack_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/pig-master-free-spins-and-coins_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/roblox-hack-codes_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/minecraft-book-collection_GM479516143.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-minecraft-accounts-reddit_GM479516143.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/minecraft-esp_GM479516143.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-hack-safe_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-links-2021_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdf
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000541d.bin
c6efeb1b9539de174b1d49cfe11bec668fa41519cfdbe77703f88b0a4f530689		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x541D 27620 bytes
font_01_sfnt_off000094c9.bin
2721194a66b32dfdaea4e26ed0bd84b304de41eeda81871a4ffc347c5a8adb25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94C9 18076 bytes

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