Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c22523058163cb…

MALICIOUS

PDF

48.0 KB Created: 2021-05-12 08:41:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f0fedc654a69c0136d3c97233a33f8e0 SHA-1: 0b554e8aaebbe1e0936c6cb69d4debebcecc8001 SHA-256: 65c22523058163cb07926927b0f20a419516529a3559bbe9ec70d441051ca62a
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a primary URL that point to sites offering game cheats and hacks, indicating a lure for users to download potentially malicious content. Heuristics for QR code and download button lures further support the malicious intent. The document's content and structure strongly suggest it is designed to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

Heuristics 5

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/minecraft-fly-hack-game-hack
    • http://pustaka.fti.unand.ac.id/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id//repository/free-spins-coin-master-no-survey_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id//repository/how-to-get-free-robux-no-scam_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id//repository/how-can-i-get-robux_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id/repository/fighting-free-card-coin-master_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id/repository/how-to-change-your-username-in-roblox-for-free_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id//repository/free-spins-coinmaster_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hacks-for-free-spins_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id//repository/minecraft-free-download_GM479516143.pdf
    • http://pustaka.fti.unand.ac.id//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id//repository/free-robux-today_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id/repository/get-coin-master-spins-free_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id//repository/free-minecraft-generator_GM479516143.pdf
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://pustaka.fti.unand.ac.id//repository/free-roblox-gift-card-codes_GM431946152.pdf
    • http://pustaka.fti.unand.ac.id//repository/minecraft-pe-mod-menu_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c21.bin
a4d1f064a32db9dea30da11e358e0a117fb0dc800dfd2e6a30c11afb08c0039d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C21 25180 bytes
font_01_sfnt_off00008571.bin
f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8571 3020 bytes
font_02_sfnt_off00008fc5.bin
4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC5 2816 bytes
font_03_sfnt_off000099d5.bin
06651707645ad1f4ebda8b3f746ca430a0b9618d46277a77061ba05985c34688		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99D5 17992 bytes

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