Malicious PDF — malware analysis report

Static analysis result for SHA-256 25acecbd419840c8…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 17:56:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: abd1cbfd461483a8aa335af18d269a53 SHA-1: 5b214082c85521b26bbca119ffb647700da428c5 SHA-256: 25acecbd419840c85f413114feec2236c943c7b01d38493c25f8649c40e50f2f
62 Risk Score

Malware Insights

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

The document contains multiple embedded URLs pointing to sites offering "hacks" for popular games like Coin Master and Roblox. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The document body explicitly mentions "ios coin master hack" and includes URLs that are likely part of a phishing or malware distribution scheme.

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://perpus.i2s-learning.com/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/facebook-coin-master-hack_GM406889139.pdf
    • http://perpus.i2s-learning.com//repository/infinite-robux_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/get-free-robux-download_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/roblox-girl_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/roblox-hacks-thumbnails_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/how-can-i-get-free-robux-2021_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/como-ser-un-hacker-en-roblox-2021_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/how-to-get-free-hats-for-free-no-inspect-roblox_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/roblox-free-hair-girl_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/how-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://perpus.i2s-learning.com//repository/how-to-get-free-followers-on-roblox_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/what-is-robux_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/how-to-hack-roblox-pc_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/robux-earner_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdf
    • http://perpus.i2s-learning.com//repository/roblox-group-free-robux_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-youtube_GM431946152.pdf
    • http://perpus.i2s-learning.com//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://perpus.i2s-learning.com/repository/free-roblox-keyboard-clicker-download_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031cf.bin
ba91b7eaabf1c25ccc68cbc21b1d04fa6b00eb2e5448d7b71e575bea4fce80bb
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31CF 23492 bytes
font_01_sfnt_off000066b2.bin
1dea32a01bfce18b325b33ca5688a8bef39c34a40412565ca8fc8a7bb5032574
pdf-font-stream PDF embedded font (sfnt) at offset 0x66B2 18004 bytes