PDF malware analysis — malicious · b654d2144fc619b7

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 20:55:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f212e143bebc8cc108c10e68863f1b56 SHA-1: 96c88149950c14434f6f0f10eaf9d7761d5dfe0d SHA-256: b654d2144fc619b7edfc2bbae927c5d3b49a1d875e96b4248170dcb87a37daa5

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a clear lure for free Robux, a virtual currency, directing users to a suspicious URL. The presence of a 'download button' heuristic and the ML classifier flagging the PDF as malicious further support its malicious intent. The document's content and the external URI strongly suggest a phishing attempt to trick users into downloading potentially harmful software.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/free-robux-melissa-game-hack
- https://library.elkatarie.ac.id/repository/coin-master-mod-version-free-download-v344_GM406889139.pdf
- https://library.elkatarie.ac.id/repository/free-tiktok-followers-no-verification-or-survey_GM835599320.pdf
- https://library.elkatarie.ac.id/repository/minecraft-build-hacks_GM479516143.pdf
- https://library.elkatarie.ac.id/repository/hackaron-roblox-download_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/cheats-for-roblox-on-phone_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/apocalypse-rising-roblox-hack-25-fvrier-2021_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/commen-hacker-booga-clasic-sur-roblox-pc_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/coin-master-fan-hack_GM406889139.pdf
- https://library.elkatarie.ac.id/repository/free-robux-with-no-verification_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/how-to-get-free-robux-eady_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/gaming-cheats-robux_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdf
- https://library.elkatarie.ac.id/repository/free-roblox-username-and-password-2021_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/free-robux-roblox-badge_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/roblox-hack-999999-robux-2021_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/roblox-piano-hack-comment-faire_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/roblox-the-big-hack_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/cheats-for-roblox-jailbreak_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/free-robux-hack-2021_GM431946152.pdf
- https://library.elkatarie.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002ffc.bin` `64812e621b1b723580e338ad2294c5b9a36cdf4cc513e19bd4c3ffebd41ea6d9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FFC	22360 bytes
`font_01_sfnt_off000061c2.bin` `77625bcc3b795d6a0ed535cf15c8ad028f7b33990a62f399fb332494463dff1d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61C2	19104 bytes

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