Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa7785fa0cec0f8…

MALICIOUS

PDF

45.2 KB Created: 2021-06-13 18:03:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 93c1bcd8e0f7782f539a20e1be132349 SHA-1: 0432c76617cc1b224a925d9738dea1149814b3f8 SHA-256: 6aa7785fa0cec0f8ad118ee8775e409fc8f66982cca0ebdcf485ae9eccdbbdca
62 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a prominent link in the body text, all directing users to websites that promise cheats or hacks for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures suggests an attempt to trick users into downloading further malware or engaging in phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.co/app/431946152/how-to-cheat-to-get-robux-on-roblox-game-hack
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/how-to-buy-robux-for-free_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-hack-pc_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/minecraft-free-minecraft_GM479516143.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-computer-hack_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-card-collection-in-coin-master_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-fun-hack_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/pubg-mobile-uc-2021_GM1330123889.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-coin-master-spins-2021_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-free-download_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/free-modded-minecraft-server-hosting_GM479516143.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-hack-tool-no-human-verification_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-online-hack-tool_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/earn-rbx_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/coin-master-hack-ios-12_GM406889139.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdf
    • https://www.pendaftarantransvision.com/ckfinder/userfiles/files/roblox-zone-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052f6.bin
33e2a2daa400eaf3e11483f8b1d437b465fd60e58eb0245f9f495217bf09e9a5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52F6 25824 bytes
font_01_sfnt_off00008d26.bin
26a1feb848026b2e47ed38f403bbf3a8a57c52f63e767e47f2180dc5b6b17809		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D26 18584 bytes

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