Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bbcb7a18d39c95c…

MALICIOUS

PDF

41.7 KB Created: 2021-05-11 22:24:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fae502267658cdd67967af246f49b600 SHA-1: c48b58c1ef94bf7357b4abe3d9eb7903d8bb3c66 SHA-256: 6bbcb7a18d39c95c318d9a70a74ec2b585e1dd76410d6f837bea914bd1a41e39
102 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or verification prompt to trick the user into clicking a malicious link. The embedded URL and numerous other URLs found in the document body point to sites offering game hacks or cheats, suggesting a lure for potentially harmful downloads or further exploitation. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/479516143/how-to-hack-minecraft-pe-game-hack
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-spin-hack_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-get-free-robux-for-real_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-free-robux-on-phone_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-free-daily-spins_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-robux-reddit_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-34-5-hack_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/wurst-mc_GM479516143.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-hair-roblox-boy_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-gold-cards-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/codes-to-get-free-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-stream_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/spin-coin-master_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/roblox-girl-avatar_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/games-that-give-you-free-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-spin-link-today-2021_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/watch-ads-for-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049c0.bin
c4e705ecc7c87fae0de8df47ef26b6d8f6f20263dc058d950bc432bcfd5c15f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49C0 24616 bytes
font_01_sfnt_off000080f1.bin
d34ad1dbd9dd4a0600043f837e3a6c6fdafb13b781254d1b565cb7d4b46c75dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F1 18196 bytes

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